CN103605879B - Mountainous village and town construction land suitability assessment method based on geological disaster - Google Patents

Abstract

The invention aims at providing a method for obtaining suitability degree of mountainous village and town construction land, provides reference data for mountainous planning and construction and discloses a mountainous village and town construction land suitability assessment method based on geological disaster. The method includes comprehensively utilizing a fuzzy synthetic evaluation method, a Delphi method, an onsite statistical survey method and the like according to the theories of fuzzy mathematics and probability statistics, analyzing and calculating factor weight affecting the suitability of the mountainous village and town construction land and the membership degree of indexes to further obtain the relation between the affecting indexes of each stage and the suitability evaluation grades according to calculation. Analysis of a project case shows that dynamic suitability evaluation based on the geological disaster can be conducted on the suitability of the mountainous village and town construction land, a preferable technical scheme can be provided during address selection, and life property loss caused by damage of the geological disaster to the village and town construction land in the use process can be avoided.

Description

Mountain area countryside architecture land suitability evaluation method based on ground calamity risk

Technical field

The present invention relates to field of taking precautions against natural calamities, specifically mountain area countryside architecture land used suitability prediction and evaluation.

Background technology

The countryside architecture of the construction in mountain area villages and small towns and plains region needs the influence factor's difference considering very big.In Plain Area, the suitability evaluation of countryside architecture land used is mainly from factors such as ecological environment, social economies, and mountain area villages and small towns are built If the feature of land used determines the index system of its suitability evaluation and evaluation methodology has the characteristics that its own.Geological disaster is The impact productive life of the mountain area people and key factor of personal safety, seriously hinder mountain area villages and small towns economic construction and Social development.The factor causing geological disaster has a lot, and the classification of geological disaster is also varied, but for mountain area, Main geological disaster includes a few big class such as landslide, mud-rock flow, earthquake, flood, land subsidence.Although above a few class geological disasters The factor causing is different, but cause to exist in the factor of these geological disasters influences each other and conversion condition again.Such as flood Landslide it is also possible to lead to induce the earthquake in some areas in the natural slope that stability may be led to weaker that spreads unchecked of water, sliding The accumulation of slopes is that the generation of mud-rock flow provides material base etc..For the villages and small towns in mountain area, geological disaster leads to The calamitous time occurs repeatedly, the WuLong landslide that such as in June, 2009 occurred, and leads to the dead compassion of missing 26 people of 78 people Play, in January, 2013 occurs to lead to 46 people dead in the landslide of Zhenxiong, occurs within 2010 the mud-stone flow disaster in Zhouqu County to lead to People more than 1300 is dead, people more than 400 missing tragedy.These disasters all occur in mountain area, and all create serious loss. Therefore, when carrying out suitability evaluation to the construction land in mountain area villages and small towns, inevitably need causing geological disaster side Make an effort in the factor in face more.At present in terms of carrying out construction land suitability evaluation, also have and geology and geomorphology factor is examined Consider, but not comprehensive, in other words the factor and index easily causing geological disaster is not considered completely.Cause geological disaster Factor include geographic and geomorphic conditions, geological conditions, weight analysis are carried out to these factors, find out it to mountain area countryside architecture The affecting laws of land used suitability, sum up the suitability evaluation methods of correlation, are to avoid the occurrence of geological disaster to mountain area villages and small towns The important means of tragedy.Currently country greatly develops new rural village, construction of rural resident settlement, is related to new countryside architecture and sends out The problem of exhibition Site Selection layout.At the initial stage of mountain area countryside architecture, rational suitability is carried out to addressing place and evaluates It is also to prevent natural disaster the most positive and effective means of harm.

Content of the invention

It is an object of the invention to provide the method obtaining the suitability degree of mountain area countryside architecture land used, it is that mountain area planning is built If offer reference data.

Employed technical scheme comprise that for realizing the object of the invention such, a kind of built based on the mountain area villages and small towns of ground calamity risk If land suitability evaluation method it is characterised in that: the geographic and geomorphic conditions to mountain area countryside architecture land used to be evaluated at Carry out field exploring；The exploration index of described geographic and geomorphic conditions includes: the place gradient, place slope aspect and surface feature type；

1.1) the described place gradient adopts number of degrees representation, and its suitability classification rule is: be highly suitably [0,5), in Degree be suitably [5,15), suitability difference for [15,55), suitability extreme difference is more than or equal to 55；

By exploration, the place gradient of described mountain area countryside architecture land used to be evaluated is x₁, in conjunction with the above-mentioned place gradient Suitability classification rule, determines the place gradient suitability of described mountain area countryside architecture land used to be evaluated according to membership function Degree of membership: (u₁x₁, u₂x₁, u₃x₁, u₄x₁)；

1.2) the suitability classification rule of described place slope aspect is:

Highly suitable --- south, the southeast or southwest,

Moderate is suitable --- and eastern or western,

Suitability is poor --- northwest or northeast,

Suitability extreme difference --- north；

By exploration, determine the place slope aspect of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned place slope aspect Suitability classification rule, determines the place slope aspect suitability of described mountain area countryside architecture land used to be evaluated according to membership function Degree of membership: (u₁x₂, u₂x₂, u₃x₂, u₄x₂)；

1.3) the suitability classification rule of described surface feature type is:

Highly suitable --- shallow mound, Plain,

Moderate is suitable --- middle mound,

Suitability is poor --- deep mound,

Suitability extreme difference --- the above rank mountain region in low mountain；

By exploration, determine the geomorphic type of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned geomorphic type Suitability classification rule, determines the geomorphic type suitability of described mountain area countryside architecture land used to be evaluated according to membership function Degree of membership: (u₁x₃, u₂x₃, u₃x₃, u₄x₃)；

Calculate:

$\begin{array}{c}(0.3162,0.2120,0.4718)\×\left\{\begin{array}{cccc}{u}_1{x}_1& u_2{x}_1& u_3{u}_1& u_4{x}_1\\ u_1{x}_2& u_2{x}_2& u_3{x}_2& u_4{x}_2\\ u_1{x}_3& u_2{x}_3& u_3{x}_3& u_4{x}_3\end{array}\right\}\\ =(u{x}_1,u{x}_2,u{x}_3,u{x}_4),\end{array}$

When obtaining considering the impact to mountain area countryside architecture land used suitability for the geographic and geomorphic conditions, suitability degree of membership: (u x₁, u x₂, u x₃, u x₄)；

If max(u is x₁, u x₂, u x₃, u x₄)=u x₁Then investigate from geographic and geomorphic conditions, described mountain area village to be evaluated The suitability of town construction land is highly suitable；If max(u is x₁, u x₂, u x₃, u x₄)=u x₂Then examine from geographic and geomorphic conditions Examine, the suitability of described mountain area countryside architecture land used to be evaluated is that moderate is suitable；If max(u is x₁, u x₂, u x₃, u x₄)= u x₃Then investigate from geographic and geomorphic conditions, the suitability of described mountain area countryside architecture land used to be evaluated is that suitability is poor；If max (u x₁, u x₂, u x₃, u x₄)=u x₄Then investigate from geographic and geomorphic conditions, described mountain area countryside architecture land used to be evaluated Suitability is suitability extreme difference.

What deserves to be explained is, by inventing the method providing, after any one place villages and small towns geographical environment is surveyed, can Draw reliable Comprehensive analysis results.Using highly suitable, moderate is suitable, suitability is poor and four grades of suitability extreme difference are to mountain The suitability of area's countryside architecture land used is evaluated, and realizes the addressing of the mountain area countryside architecture land used based on geological disaster risk. Wherein:

Highly suitably represent and geological disaster will not occur it is not necessary to take engineering measure to prevent at addressing；

Moderate suitably represents the generation that might have small-scale geological disaster at addressing, needs to take certain engineering to arrange Apply；

Suitability difference represents at addressing it may happen that medium and above scale geological disaster, should avoid addressing, if not as far as possible It is avoided that, then need to take the generation of the pre- Geological disaster prevention of substantial amounts of engineering measure；

Suitability extreme difference represent very likely there is extensive geological disaster at addressing it is impossible to be used as construction land.

The present invention compared with prior art, has the advantage that

First, Geological Hazards Monitoring is carried out to a large amount of characteristic areas, according to statistics analysis of the inspected data draw based on ground The suitability evaluation influence factor of calamity risk and evaluation model are close to nature actual state, meet the reliability of evaluation result.

Second, in the suitability evaluation based on the mountain area countryside architecture land used of ground calamity risk, the evaluation index of employing is all There is with geological disaster the parameter of close ties, and parameters can be quantified by means of testing, it is to avoid analysis In anthropic factor differentiation.

3rd, degree of membership (function) is set up using the Monitoring Data through statistical analysiss, result of calculation more conforms to nature Rule, it is to avoid unpractical evaluation result.

4th, the present invention can not only be optimized to the siteselecting planning scheme of mountain area countryside architecture land used, it is to avoid addressing Place meets with geological disaster.And the ground calamity risk of existing mountain area countryside architecture land used can be evaluated, realize based on ground calamity The dynamic evaluation of the suitability of risk, serves the effect prevented and reduced natural disasters.

5th, during essential in the scheme to Practical Project and existing mountain area countryside architecture land used investigation is surveyed, Monitoring Data can be enriched further, make the actual value that the statistical law in implementation process is more close in the natural law.

Specific embodiment

With reference to embodiment, the invention will be further described, but only should not be construed the above-mentioned subject area of the present invention It is limited to following embodiments.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and used With means, make various replacements and change, all should include within the scope of the present invention.

Embodiment 1:

A kind of mountain area countryside architecture land suitability evaluation method based on ground calamity risk it is characterised in that: to treating at one The geographic and geomorphic conditions 100 of the mountain area countryside architecture land used evaluated carry out field exploring.The exploration of described geographic and geomorphic conditions 100 Index includes: the place gradient 101, place slope aspect 102 and surface feature Class1 03.

1.1) the described place gradient 101 adopts number of degrees representation, and its suitability classification rule is: be highly suitably [0,5), Moderate be suitably [5,15), suitability difference for [15,55), suitability extreme difference is more than or equal to 55.

By exploration, the place gradient 101 of described mountain area countryside architecture land used to be evaluated is x₁, in conjunction with above-mentioned place slope Spend 101 suitability classification rules, determine the place gradient of described mountain area countryside architecture land used to be evaluated according to membership function 101 suitability degrees of membership: (u₁x₁, u₂x₁, u₃x₁, u₄x₁).

What deserves to be explained is, membership function (membership function) is the mathematics work for characterizing fuzzy set Tool.If to the either element x in domain (scope of research) u, having number a(x) ∈ 0,1 corresponds to therewith, then and a is called on u Fuzzy set, a(x) the referred to as degree of membership to a for the x.When x changes in u, a(x) be exactly a function, referred to as a be subordinate to letter Number.Degree of membership a(x) be closer to 1, represent x belong to a degree higher, a(x) be closer to 0 expression x and belong to the degree of a get over Low.With value in interval 0,1 membership function a(x) characterize the degree height that x belongs to a.Degree of membership belongs in fuzzy evaluation functions Concept: fuzzy overall evaluation be things affected by many factors is made thoroughly evaluating one kind highly effective multifactor Decision method, is characterized in that evaluation result is not utterly positive or negative, but to be represented with a fuzzy set.

Specific to the present embodiment and latter embodiments, four set under described suitability classification rule are (highly suitably, Moderate is suitable, and suitability is poor, suitability extreme difference) fuzzy set on as domain u.By surveying (the such as place gradient obtaining 101) result is the element in domain u." determine the place of described mountain area countryside architecture land used to be evaluated according to membership function Membership function in the gradient 101 suitability degree of membership " is the letter judging to belong to each fuzzy set in the exploration much degree of result Number.More specifically, described exploration result has two kinds.One kind is specific numerical value (as the place gradient 101), now by this numerical value It is directly substituted into membership function and calculates result, obtain our degrees of membership of concern；Another kind be obtain discrete descriptive Result (geomorphic type 103 as hereinafter), now described membership function is exactly a series of degree of membership judgment rule, by comparing Judge, draw the degree of membership of described discrete descriptive result.

The present embodiment discloses a kind of place determining described mountain area countryside architecture land used to be evaluated according to membership function Used membership function in the gradient 101 suitability degree of membership:

$u_1{x}_1=\left\{\begin{array}{cc}1& x_1<5\\ (15-x_1)/(15-5)& 5\&le;x_1<5\\ 0& x_1\&greaterequal;15\end{array}\right.$

$u_2{x}_1=\left\{\begin{array}{cc}(15-5)/(15-x_1)& x_1<5\\ 1& 5\&le;x_1<15\\ (55-x_1)/(55-15)& 15\&le;x_1<55\\ 0& x_1\&greaterequal;55\end{array}\right.$

$u_3{x}_1=\left\{\begin{array}{cc}0& x_1<5\\ (x_1-5)/(15-5)& 5\&le;x_1<15\\ 1& 15\&le;x_1<55\\ (55-15)/(x_1-15)& x_1\&greaterequal;55\end{array}\right.$

$u_4{x}_1=\left\{\begin{array}{cc}0& x_1<15\\ (x_1-15)/(55-15)& 15\&le;x_1<55\\ 1& x_1\&greaterequal;55\end{array}\right.$

By by surveying place gradient 101(x obtaining₁) substitute into above-mentioned function, obtain (u by calculating₁x₁, u₂x₁, u₃x₁, u₄x₁).

1.2) the suitability classification rule of described place slope aspect 102 is:

Highly suitable --- south, the southeast or southwest,

Moderate is suitable --- and eastern or western,

Suitability is poor --- northwest or northeast,

Suitability extreme difference --- north.

By exploration, determine the place slope aspect 102 of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned place slope To 102 suitability classification rules, determine the place slope aspect of described mountain area countryside architecture land used to be evaluated according to membership function 102 suitability degrees of membership: (u₁x₂, u₂x₂, u₃x₂, u₄x₂).

In process as previously mentioned, for this discrete element of place slope aspect 102, described membership function is a grading Rule:

If place slope aspect 102 is highly suitable: (u₁x₂, u₂x₂, u₃x₂, u₄x₂)=(0.75,0.25,0.00,0.00)； When place slope aspect 102 as described mountain area countryside architecture land used to be evaluated is south, then (u₁x₂, u₂x₂, u₃x₂, u₄x₂)= (0.75,0.25,0.00,0.00).

If place slope aspect 102 be moderate suitable when: (u₁x₂, u₂x₂, u₃x₂, u₄x₂)=(0.15,0.70,0.15,0.00)； When place slope aspect 102 as described mountain area countryside architecture land used to be evaluated is east, then (u₁x₂, u₂x₂, u₃x₂, u₄x₂)= (0.15,0.70,0.15,0.00).

If place slope aspect 102 is suitability difference: (u₁x₂, u₂x₂, u₃x₂, u₄x₂)=(0.00,0.15,0.70,0.15)； When place slope aspect 102 as described mountain area countryside architecture land used to be evaluated is northwest, then (u₁x₂, u₂x₂, u₃x₂, u₄x₂)= (0.00,0.15,0.70,0.15).

If place slope aspect 102 is suitability extreme difference: (u₁x₂, u₂x₂, u₃x₂, u₄x₂)=(0.00,0.00,0.25, 0.75)；When place slope aspect 102 as described mountain area countryside architecture land used to be evaluated is north, then (u₁x₂, u₂x₂, u₃x₂, u₄x₂) =(0.00,0.00,0.25,0.75).

1.3) the suitability classification rule of described surface feature Class1 03 is:

Highly suitable --- shallow mound, Plain,

Moderate is suitable --- middle mound,

Suitability is poor --- deep mound,

Suitability extreme difference --- the above rank mountain region in low mountain.

By exploration, determine the geomorphic type 103 of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned landforms class Type 103 suitability classification rule, determines the geomorphic type of described mountain area countryside architecture land used to be evaluated according to membership function 103 suitability degrees of membership: (u₁x₃, u₂x₃, u₃x₃, u₄x₃).What deserves to be explained is, as previously mentioned, for place slope aspect 102, landforms In the process of this kind of discrete element such as Class1 03, described membership function is a grading rule:

If geomorphic type 103 is highly suitable: (u₁x₃, u₂x₃, u₃x₃, u₄x₃)=(0.75,0.25,0.00,0.00)； When geomorphic type 103 as described mountain area countryside architecture land used to be evaluated is shallow mound Pingba, then (u₁x₃, u₂x₃, u₃x₃, u₄x₃) =(0.75,0.25,0.00,0.00).

If geomorphic type 103 be moderate suitable when: (u₁x₃, u₂x₃, u₃x₃, u₄x₃)=(0.15,0.70,0.15,0.00)； When geomorphic type 103 as described mountain area countryside architecture land used to be evaluated is deep mound, then (u₁x₃, u₂x₃, u₃x₃, u₄x₃)= (0.15,0.70,0.15,0.00).

If geomorphic type 103 is suitability difference: (u₁x₃, u₂x₃, u₃x₃, u₄x₃)=(0.00,0.15,0.70,0.15)； When geomorphic type 103 as described mountain area countryside architecture land used to be evaluated is river valley geomorgy, then (u₁x₃, u₂x₃, u₃x₃, u₄x₃) =(0.00,0.15,0.70,0.15).

If geomorphic type 103 is suitability extreme difference: (u₁x₃, u₂x₃, u₃x₃, u₄x₃)=(0.00,0.00,0.25, 0.75)；When geomorphic type 103 as described mountain area countryside architecture land used to be evaluated is karst landform, then (u₁x₃, u₂x₃, u₃x₃, u₄x₃)=(0.00,0.00,0.25,0.75).

Calculate:

$\begin{array}{c}(0.3162,0.2120,0.4718)\&times;\left\{\begin{array}{cccc}{u}_1{x}_1& u_2{x}_1& u_3{u}_1& u_4{x}_1\\ u_1{x}_2& u_2{x}_2& u_3{x}_2& u_4{x}_2\\ u_1{x}_3& u_2{x}_3& u_3{x}_3& u_4{x}_3\end{array}\right\}\\ =(u{x}_1,u{x}_2,u{x}_3,u{x}_4),\end{array}$

When obtaining considering the impact to mountain area countryside architecture land used suitability for the geographic and geomorphic conditions 100, suitability is subordinate to Degree: (u x₁, u x₂, u x₃, u x₄).

If max(u is x₁, u x₂, u x₃, u x₄)=u x₁Then investigate from geographic and geomorphic conditions 100, described mountain to be evaluated The suitability of area's countryside architecture land used is highly suitable.If max(u is x₁, u x₂, u x₃, u x₄)=u x₂Then from topography and geomorphology bar Part 100 is investigated, and the suitability of described mountain area countryside architecture land used to be evaluated is that moderate is suitable.If max(u is x₁, u x₂, u x₃, u x₄)=u x₃Then investigate from geographic and geomorphic conditions 100, the suitability of described mountain area countryside architecture land used to be evaluated is suitable Property is poor.If max(u is x₁, u x₂, u x₃, u x₄)=u x₄Then investigate from geographic and geomorphic conditions 100, described mountain area village to be evaluated The suitability of town construction land is suitability extreme difference.

What deserves to be explained is, in (0.3162,0.2120,0.4718), three numerical value are the correspondences being determined by many experiments In the described place gradient 101, place slope aspect 102 and surface feature Class1 03 factor of influence to geographic and geomorphic conditions 100.

The present embodiment is also disclosed the suitability exploration of one group of Tongnan County Chong Kan town somewhere and evaluating data.This ground is low mountain region Looks, place gradient ensemble average are 4 °, and place slope aspect is eastwards.According to said method, determine (u₁x₁, u₂x₁, u₃x₁, u₄x₁)= (1.00,0.90,0.00,0.00)；(u₁x₂, u₂x₂, u₃x₂, u₄x₂)=(0.15,0.70,0.15,0.00)；(u₁x₃, u₂x₃, u₃x₃, u₄x₃)=(0.15,0.70,0.15,0.00).

Calculate:

$\begin{array}{c}(0.3162,0.2120,0.4718)\&times;\begin{array}{}\end{array}\left\{\begin{array}{cccc}1.00,& 0.90,& 0.00,& 0.00\\ 0.15,& 0.70,& 0.15,& 0.00\\ 0.15,& 0.70,& 0.15,& 0.00\end{array}\right\}\\ =(u{x}_1,u{x}_2,u{x}_3,u{x}_4)=(0.4188,0.7632,0.1026,0.0000).\end{array}$

According to maximum membership grade principle, then only the impact to mountain area countryside architecture land used suitability for the geomorphologic conditions 100 when, This region suitability evaluation grade is that moderate is suitable.

Embodiment 2:

The present embodiment considers four first class index: geographic and geomorphic conditions 100, geological conditions 200, hydrologic condition 300, ecology Environmental condition 400.There are some two-level index under each first class index again.Thus drawing mountain area countryside architecture land used to be evaluated Suitability.The suitability classification of the present embodiment and weight are as shown in table 1:

Table 1 affects weight and the suitability analysis of mountain area countryside architecture land suitability evaluation index

Compared with technology, (inclusion is subordinate to the investigation method of each index of the present embodiment for the step of its data processing and thinking Degree function) with embodiment 1.Specifically, described exploration result divides three kinds of situations:

) the first is exploration result is specific numerical value, and the less suitable degree of this numerical value is higher, this numerical value is more suitable greatly Preferably degree lower (as grade of side slope, cheuch cut degree, degree of rock weathering, average annual rainfall, earthquake intensity), now will This numerical value is directly substituted into " membership function " and calculates result, obtains our degrees of membership of concern；

Described membership function is:

$u_1=\left\{\begin{array}{cc}1& x<a_1\\ \frac{a_2-x}{a_2-a_1}& a_1\&le;x<a_2\\ 0& x\&greaterequal;a_2\end{array}\right.$

$u_2=\left\{\begin{array}{cc}\frac{a_2-a_1}{a_2-x}& x<a_1\\ 1& a_1\&le;x<a_2\\ \frac{a_3-x}{a_3-a_2}& a_2\&le;x<a_3\\ 0& x\&greaterequal;a_3\end{array}\right.$

$u_3=\left\{\begin{array}{cc}0& x<a_1\\ \frac{x-a_1}{a_2-a_1}& a_1\&le;x<a_2\\ 1& a_2\&le;x<a_3\\ \frac{a_3-a_2}{x-a_2}& x{\&le;a}_3\end{array}\right.$

$u_4=\left\{\begin{array}{cc}0& x<a_2\\ \frac{x-a_2}{a_3-a_2}& a_2\&le;x<a_3\\ 1& x\&greaterequal;a_3\end{array}\right.$

) second is exploration result is specific numerical value, and the bigger suitable degree of this numerical value is higher, this numerical value is less suitable This numerical value is now directly substituted into " degree of membership by preferably degree lower (as basement rock intensity, internal friction angle, cohesive strength, vegetation coverage) Function " calculates result, obtains our degrees of membership of concern；

Described membership function is:

$u_1=\left\{\begin{array}{cc}1& x\&greaterequal;a_1\\ \frac{{x-a}_2}{a_1-a_2}& a_2\&le;x<a_1\\ 0& x<a_2\end{array}\right.$

$u_2=\left\{\begin{array}{cc}\frac{a_1-a_2}{x-a_2}& x\&greaterequal;a_1\\ 1& a_2\&le;x{<a}_1\\ \frac{x-a_3}{a_2-a_3}& a_3\&le;x<a_2\\ 0& x<a_3\end{array}\right.$

$u_3=\left\{\begin{array}{cc}0& x\&greaterequal;a_1\\ \frac{a_1-x}{a_1-a_2}& a_2\&le;x<a_1\\ 1& a_3\&le;{x<a}_2\\ \frac{a_2-a_3}{a_2-x}& x<a_3\end{array}\right.$

$u_4=\left\{\begin{array}{cc}0& x\&greaterequal;a_2\\ \frac{a_2-x}{a_2-a_3}& a_3\&le;x<a_2\\ 1& x<a_3\end{array}\right.$

) the third is to obtain discrete descriptive result (geomorphic type 103 as hereinafter), now described degree of membership letter Number is exactly one to be " row degree of membership judgment rule ", by contrast judgement, draws the degree of membership of described discrete descriptive result.It is subordinate to Genus degree judgment rule is as shown in table 2:

Table 2 discrete type index degree of membership

A kind of mountain area countryside architecture land suitability evaluation method based on ground calamity risk, to mountain area village to be evaluated at The geographic and geomorphic conditions 100 of town construction land carry out field exploring；The exploration index of described geographic and geomorphic conditions 100 includes: field The ground gradient 101, place slope aspect 102 and surface feature Class1 03；(1.1～1.3 with embodiment 1)

1.1) the described place gradient 101 adopts number of degrees representation, and its suitability classification rule is: be highly suitably [0,5), Moderate be suitably [5,15), suitability difference for [15,55), suitability extreme difference is more than or equal to 55；

By exploration, the place gradient 101 of described mountain area countryside architecture land used to be evaluated is x₁, in conjunction with above-mentioned place slope Spend 101 suitability classification rules, determine the place gradient of described mountain area countryside architecture land used to be evaluated according to membership function 101 suitability degrees of membership: (u₁x₁, u₂x₁, u₃x₁, u₄x₁)；

1.2) the suitability classification rule of described place slope aspect 102 is:

Highly suitable --- south, the southeast or southwest,

Moderate is suitable --- and eastern or western,

Suitability is poor --- northwest or northeast,

Suitability extreme difference --- north；

By exploration, determine the place slope aspect 102 of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned place slope To 102 suitability classification rules, determine the place slope aspect of described mountain area countryside architecture land used to be evaluated according to membership function 102 suitability degrees of membership: (u₁x₂, u₂x₂, u₃x₂, u₄x₂)；Membership function in this step is exactly rule defined in table 2, its Middle u₁=u₁x₂, u₂=u₂x₂, u₃=u₃x₂, u₄=u₄x₂；

1.3) the suitability classification rule of described surface feature Class1 03 is:

Highly suitable --- shallow mound, Plain,

Moderate is suitable --- middle mound,

Suitability is poor --- deep mound,

Suitability extreme difference --- the above rank mountain region in low mountain；

By exploration, determine the geomorphic type 103 of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned landforms class Type 103 suitability classification rule, determines the geomorphic type of described mountain area countryside architecture land used to be evaluated according to membership function 103 suitability degrees of membership: (u₁x₃, u₂x₃, u₃x₃, u₄x₃)；

Membership function in this step is exactly rule, wherein u defined in table 2₁=u₁x₃, u₂=u₂x₃, u₃=u₃x₃, u₄=u₄x₃；

Calculate:

$\begin{array}{c}(0.3162,0.2120,0.4718)\&times;\left\{\begin{array}{cccc}{u}_1{x}_1& u_2{x}_1& u_3{u}_1& u_4{x}_1\\ u_1{x}_2& u_2{x}_2& u_3{x}_2& u_4{x}_2\\ u_1{x}_3& u_2{x}_3& u_3{x}_3& u_4{x}_3\end{array}\right\}\\ =(u{x}_1,u{x}_2,u{x}_3,u{x}_4),\end{array}$

When obtaining considering the impact to mountain area countryside architecture land used suitability for the geographic and geomorphic conditions 100, suitability is subordinate to Degree: (u x₁, u x₂, u x₃, u x₄)；

If max(u is x₁, u x₂, u x₃, u x₄)=u x₁Then investigate from geographic and geomorphic conditions 100, described mountain to be evaluated The suitability of area's countryside architecture land used is highly suitable；If max(ux₁, u x₂, u x₃, u x₄)=u x₂Then from topography and geomorphology bar Part 100 is investigated, and the suitability of described mountain area countryside architecture land used to be evaluated is that moderate is suitable；If max(u is x₁, u x₂, u x₃, u x₄)=u x₃Then investigate from geographic and geomorphic conditions 100, the suitability of described mountain area countryside architecture land used to be evaluated is suitable Property is poor；If max(u is x₁, u x₂, u x₃, u x₄)=u x₄Then investigate from geographic and geomorphic conditions 100, described mountain area village to be evaluated The suitability of town construction land is suitability extreme difference.

Field exploring is carried out to the geological conditions 200 of mountain area countryside architecture land used to be evaluated at；Described geological conditions 200 exploration index includes: tomography situation 201, basement rock intensity 202, grade of side slope 203, structural plane internal friction angle 204, structure Face cohesive strength 205, cheuch cutting degree 206, degree of rock weathering 207, slope ground body material composition 208 and the cementing journey of rock mass Degree 208；

2.1) the suitability classification rule of described tomography situation 201 is:

Highly suitable --- no tomography in 1000m around described mountain area countryside architecture land used to be evaluated, or described to be evaluated The distance between the mountain area countryside architecture land used of valency and dormant fault<1000m but>500m,

Moderate is suitable --- the distance between described mountain area countryside architecture land used to be evaluated and dormant fault < 500m,

Suitability is poor --- described mountain area countryside architecture land used to be evaluated with enliven the distance between tomography<1000m but> 500m,

Suitability extreme difference --- described mountain area countryside architecture land used to be evaluated with enliven the distance between tomography < 500m；

By exploration, determine the tomography situation 201 of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned tomography feelings Condition 201 suitability classification rule, determines the tomography situation of described mountain area countryside architecture land used to be evaluated according to membership function 201 suitability degrees of membership: (u₁y₁, u₂y₁, u₃y₁, u₄y₁)；

Membership function in this step is exactly rule, wherein u defined in table 2₁=u₁y₁, u₂=u₂y₁, u₃=u₃y₁, u₄=u₄y₁；

2.2) described basement rock intensity 202 is y₂, unit is kpa, and its suitability classification rule is:

Highly suitable --- strong, i.e. y₂>=500,

Moderate is suitable --- medium, i.e. 250≤y₂< 500,

Suitability is poor --- weak, i.e. 100≤y₂< 250,

Suitability extreme difference --- very weak, i.e. y₂<100；

By exploration, determine the basement rock intensity 202 of described mountain area countryside architecture land used to be evaluated, strong in conjunction with above-mentioned basement rock Spend 202 suitability classification rules, determine that according to membership function the basement rock of described mountain area countryside architecture land used to be evaluated is strong Spend 202 suitability degrees of membership: (u₁y₂, u₂y₂, u₃y₂, u₄y₂)；In membership function, a₁=500, a₂=250, a₃=100, x =y₂, u₁=u₁y₂, u₂=u₂y₂, u₃=u₃y₂, u₄=u₄y₂；

2.3) the suitability classification rule of described grade of side slope 203 is: be highly suitably [0 °, 25 °), moderate is suitably [25 °, 35 °), suitability difference for [35 °, 45 °), suitability extreme difference is more than or equal to 45 °；

By exploration, the grade of side slope 203 of described mountain area countryside architecture land used to be evaluated is y₃, in conjunction with above-mentioned Slope Spend 203 suitability classification rules, determine the grade of side slope of described mountain area countryside architecture land used to be evaluated according to membership function 203 suitability degrees of membership: (u₁y₃, u₂y₃, u₃y₃, u₄y₃)；In membership function, a₁=25, a₂=35, a₃=45, x=y₃, u₁ =u₁y₃, u₂=u₂y₃, u₃=u₃y₃, u₄=u₄y₃；

2.4) the suitability classification rule of described structural plane internal friction angle 204 is: highly it is suitably greater than or be equal to 35 °, Moderate be suitably [27 °, 35 °), suitability difference for [18 °, 27 °), suitability extreme difference be [0 °, 18 °)；

By exploration, the structural plane internal friction angle 204 of described mountain area countryside architecture land used to be evaluated is y₄, in conjunction with above-mentioned Structural plane internal friction angle 204 suitability classification rule, determines described mountain area countryside architecture to be evaluated according to membership function The structural plane internal friction angle 204 suitability degree of membership of land used: (u₁y₄, u₂y₄, u₃y₄, u₄y₄)；In membership function, a₁=35, a₂=27, a₃=18, x=y₄, u₁=u₁y₄, u₂=u₂y₄, u₃=u₃y₄, u₄=u₄y₄；

2.5) described structural plane cohesive strength 205 unit be mpa, its suitability classification rule be: be highly suitably greater than or Equal to 0.13, moderate be suitably [0.09,0.13), suitability difference for [0.05,0.09), suitability extreme difference be [0,0.05)；

By exploration, the structural plane cohesive strength 205 of described mountain area countryside architecture land used to be evaluated is y₅, in conjunction with above-mentioned knot Structure face cohesive strength 205 suitability classification rule, determines described mountain area countryside architecture land used to be evaluated according to membership function Structural plane cohesive strength 205 suitability degree of membership: (u₁y₅, u₂y₅, u₃y₅, u₄y₅)；In membership function, a₁=0.13, a₂= 0.09, a₃=0.05, x=y₅, u₁=u₁y₅, u₂=u₂y₅, u₃=u₃y₅, u₄=u₄y₅；

2.6) described cheuch cutting degree 206 unit is m, and its suitability classification rule is: be highly suitably [0,50), in Degree be suitably [50,100), suitability difference for [100,500), suitability extreme difference is more than or equal to 500；

By exploration, the cheuch cutting degree 206 of described mountain area countryside architecture land used to be evaluated is y₆, in conjunction with above-mentioned ditch Paddy cutting degree 206 suitability classification rule, determines described mountain area countryside architecture land used to be evaluated according to membership function Cheuch cuts degree 206 suitability degree of membership: (u₁y₆, u₂y₆, u₃y₆, u₄y₆)；

Membership function in this step is exactly rule, wherein u defined in table 2₁=u₁y₆, u₂=u₂y₆, u₃=u₃y₆, u₄=u₄y₆；

2.7) described degree of rock weathering 207 adopts percentage ratio representation, and its suitability classification rule is: is highly suitably [0,10%), moderate be suitably [10%, 20%), suitability difference for [20%, 30%), suitability extreme difference be more than or equal to 30%；

By exploration, the degree of rock weathering 207 of described mountain area countryside architecture land used to be evaluated is y₇%, in conjunction with above-mentioned Degree of rock weathering 207 suitability classification rule, determines described mountain area countryside architecture land used to be evaluated according to membership function Degree of rock weathering 207 suitability degree of membership: (u₁y₇, u₂y₇, u₃y₇, u₄y₇)；In membership function, a₁=10, a₂=20, a₃=30, x=y₇, u₁=u₁y₇, u₂=u₂y₇, u₃=u₃y₇, u₄=u₄y₇；

2.8) the suitability classification rule of described slope ground body material composition 208 is:

Highly suitable --- top layer is covered by thick cohesive soil, (soil thickness is more than 3m)

Moderate is suitable --- thicker cohesive soil (soil thickness is between 1～3m),

Suitability is poor --- rubble and fragmentary cohesive soil (or more than 20% surface no soil layer covers),

Suitability extreme difference --- block stone, the soil body directly piles up (complete cohesiveless soil)；

By exploration, determine the slope ground body material composition 208 of described mountain area countryside architecture land used to be evaluated, in conjunction with Above-mentioned slope ground body material composition 208 suitability classification rule, determines described mountain area village to be evaluated according to membership function The slope ground body material composition 208 suitability degree of membership of town construction land: (u₁y₈, u₂y₈, u₃y₈, u₄y₈)；

Membership function in this step is exactly rule, wherein u defined in table 2₁=u₁y₈, u₂=u₂y₈, u₃=u₃y₈, u₄=u₄y₈；

2.9) the suitability classification rule of described rock mass degree of consolidation 209 is:

Highly suitable --- closely knit,

Moderate is suitable --- in close,

Suitability is poor --- and slightly close,

Suitability extreme difference --- loose；

By exploration, determine the rock mass degree of consolidation 209 of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned rock Body degree of consolidation 209 suitability classification rule, determines described mountain area countryside architecture land used to be evaluated according to membership function Rock mass degree of consolidation 209 suitability degree of membership: (u₁y₉, u₂y₉, u₃y₉, u₄y₉)；

Membership function in this step is exactly rule, wherein u defined in table 2₁=u₁y₉, u₂=u₂y₉, u₃=u₃y₉, u₄=u₄y₉；

Calculate: (0.1022,0.0795,0.0855,0.1335,0.1924,0.1168,0.0542,0.0496,0.1863) ×

$\begin{array}{c}\left\{\begin{array}{cccc}{u}_1{y}_1,& u_2{y}_1,& u_3{y}_1,& u_4{y}_1\\ u_2{y}_2,& u_2{y}_2,& u_3{y}_2,& u_4{y}_2\\ u_1{y}_3,& u_2{y}_3,& u_3{y}_3,& u_4{y}_3\\ u_1{y}_4,& u_2{y}_4,& u_3{y}_4,& u_4{y}_4\\ u_1{y}_5,& u_2{y}_5,& u_3{y}_5,& u_4{y}_5\\ u_1{y}_6,& u_2{y}_6,& u_3{y}_6,& u_4{y}_6\\ u_1{y}_7,& u_2{y}_7,& u_3{y}_7,& u_4{y}_7\\ u_1{y}_8,& u_2{y}_8,& u_3{y}_8,& u_4{y}_8\\ u_1{y}_9,& u_2{y}_9,& u_3{y}_{9,}& u_4{y}_9\end{array}\right\}\\ =(u{y}_1,u{y}_2,u{y}_3,u{y}_4),\end{array}$

When obtaining considering the impact to mountain area countryside architecture land used suitability for the geological conditions 200, suitability degree of membership: (u y₁, u y₂, u y₃, u y₄)；

If max(u is y₁, u y₂, u y₃, u y₄)=u y₁Then investigate from geological conditions 200, described mountain area village to be evaluated The suitability of town construction land is highly suitable；If max(u is y₁, u y₂, u y₃, u y₄)=u y₂Then examine from geological conditions 200 Examine, the suitability of described mountain area countryside architecture land used to be evaluated is that moderate is suitable；If max(u is y₁, u y₂, u y₃, u y₄)= u y₃Then investigate from geological conditions 200, the suitability of described mountain area countryside architecture land used to be evaluated is that suitability is poor；If max (u y₁, u y₂, u y₃, u y₄)=u y₄Then investigate from geological conditions 200, described mountain area countryside architecture land used to be evaluated suitable Preferably property is suitability extreme difference.

Field exploring is carried out to the hydrologic condition 300 of mountain area countryside architecture land used to be evaluated at；Described hydrologic condition 300 exploration index includes: seepage action of ground water 301, surface water wash away 302, average annual rainfall 303 and drainage measure 304；

3.1) the suitability classification rule of described seepage action of ground water 301 is (" Standard for classification of engineering rock masses "):

Highly suitable --- dry or moist,

Moderate is suitable --- drips,

Suitability is poor --- line stream shape water outlet,

Suitability extreme difference --- retention of excessive fluid or flowing；

By exploration, determine the situation of the described seepage action of ground water 301 of mountain area countryside architecture land used to be evaluated, in conjunction with upper State seepage action of ground water 301 suitability classification rule, described mountain area countryside architecture land used to be evaluated is determined according to membership function Seepage action of ground water 301 suitability degree of membership: (u₁z₁, u₂z₁, u₃z₁, u₄z₁)；Membership function in this step is exactly table 2 institute The rule of definition, wherein u₁=u₁z₁, u₂=u₂z₁, u₃=u₃z₁, u₄=u₄z₁；

3.2) the suitability classification rule that described surface water washes away 302 is:

Highly suitable --- micro-,

Moderate is suitable, and --- weak, suitability is poor --- is relatively strong,

Suitability extreme difference --- strong；

By exploration, determine that the surface water of described mountain area countryside architecture land used to be evaluated washes away 302, in conjunction with above-mentioned earth's surface Water washes away 302 suitability classification rules, determines the earth's surface of described mountain area countryside architecture land used to be evaluated according to membership function Water washes away 302 suitability degrees of membership: (u₁z₂, u₂z₂, u₃z₂, u₄z₂)；Membership function in this step is exactly defined in table 2 Rule, wherein u₂=u₁z₂, u₂=u₂z₂, u₃=u₃z₂, u₄=u₄z₂；

3.3) described average annual rainfall 303 unit is mm, and its suitability classification rule is: be highly suitably [0,200), Moderate be suitably [200,250), suitability difference for [250,350), suitability extreme difference is more than or equal to 350；

By exploration, the average annual rainfall 303 of described mountain area countryside architecture land used to be evaluated is z₃, in conjunction with above-mentioned year Average rainfall 303 suitability classification rule, determines described mountain area countryside architecture land used to be evaluated according to membership function Average annual rainfall 303 suitability degree of membership: (u₁z₃, u₂z₃, u₃z₃, u₄z₃)；In membership function, a₁=200, a₂=250, a₃=350, x=z₃, u₁=u₁z₃, u₂=u₂z₃, u₃=u₃z₃, u₄=u₄z₃；

3.4) the suitability classification rule of described drainage measure 304 is:

Highly suitable --- there is self perfect drainage system, (gutters if any more than 10)

Moderate is suitable --- there is simple drainage system, (if any 4～9 gutters)

Suitability is poor --- only several open drains, (if any 1～3 gutter)

Suitability extreme difference --- no drainage measure；(prosthetic drainage measure around place)

By exploration, determine the drainage measure 304 of described mountain area countryside architecture land used to be evaluated, arrange in conjunction with above-mentioned draining Apply 304 suitability classification rules, determine the drainage measure of described mountain area countryside architecture land used to be evaluated according to membership function 304 suitability degrees of membership: (u₁z₄, u₂z₄, u₃z₄, u₄z₄)；Membership function in this step is exactly rule defined in table 2, its Middle u₂=u₁z₄, u₂=u₂z₄, u₃=u₃z₄, u₄=u₄z₄；

Calculate:

$\begin{array}{c}(0.4131,0.1855,0.1244,0.2770)\&times;\left\{\begin{array}{cccc}{u}_1{z}_1,& u_2{z}_1,& u_3{z}_1,& u_4{z}_1\\ u_1{z}_2,& u_2{z}_2,& u_3{z}_2,& u_4{z}_2\\ u_1{z}_3,& u_2{z}_3,& u_3{z}_3,& u_4{z}_3\\ u_1{z}_4,& u_2{z}_4,& u_3{z}_4,& u_4{z}_4\end{array}\right\}\\ =(u{z}_1,u{z}_2,u{z}_3,u{z}_4),\end{array}$

When obtaining considering the impact to mountain area countryside architecture land used suitability for the drainage measure 304, suitability degree of membership: (u z₁, u z₂, u z₃, u z₄)；

If max(u is z₁, u z₂, u z₃, u z₄)=u z₁, then when drainage measure 304 is investigated, described mountain area to be evaluated The suitability of countryside architecture land used is highly suitable；If max(u is z₁, u z₂, u z₃, u z₄)=u z₂, then from drainage measure 304 During investigation, the suitability of described mountain area countryside architecture land used to be evaluated is that moderate is suitable；If max(u is z₁, u z₂, u z₃, u z₄)=u z₃, then, when drainage measure 304 is investigated, the suitability of described mountain area countryside architecture land used to be evaluated is suitability Difference；If max(u is z₁, u z₂, u z₃, u z₄)=u z₄, then when drainage measure 304 is investigated, described mountain area villages and small towns to be evaluated The suitability of construction land is suitability extreme difference.

Field exploring is carried out to the ecological environmental condition 400 of mountain area countryside architecture land used to be evaluated at；Described ecology The exploration index of environmental condition 400 includes: vegetation pattern 401, vegetation coverage 402, earthquake intensity 403, land use type 404 and Human dried bloodstains 405；

4.1) the suitability classification rule of described vegetation pattern 401 is:

Highly suitable --- grass tree mixes and grass is in the majority,

Moderate is suitable --- and grass tree mixes and sets in the majority, and that is, grassland area is less than the area of the woods,

Suitability is poor --- tree,

Suitability extreme difference --- no vegetative coverage；

By exploration, determine the vegetation pattern 401 of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned vegetation class Type 401 suitability classification rule, determines the vegetation pattern of described mountain area countryside architecture land used to be evaluated according to membership function 401 suitability degrees of membership: (u₁k₁, u₂k₁, u₃k₁, u₄k₁)；Membership function in this step is exactly rule defined in table 2, its Middle u₂=u₁k₁, u₂=u₂k₁, u₃=u₃k₁, u₄=u₄k₁；

4.2) described vegetation coverage 402 adopts percentage ratio representation, and its suitability classification rule is: is highly suitably big In or be equal to 20%, moderate be suitably [15%, 20%), suitability difference for [5%, 15%), suitability extreme difference be [0,5%)；

By exploration, the vegetation coverage 402 of described mountain area countryside architecture land used to be evaluated is k₂%, in conjunction with above-mentioned plant Capped rate 402 suitability classification rule, determines described mountain area countryside architecture land used to be evaluated according to membership function Vegetation coverage 402 suitability degree of membership: (u₁k₂, u₂k₂, u₃k₂, u₄k₂)；In membership function, a₁=20, a₂=15, a₃= 5, x=k₂, u₁=u₁k₂, u₂=u₂k₂, u₃=u₃k₂, u₄=u₄k₂；

4.3) described earthquake intensity 403 suitability classification rule is: be highly suitably [0,4 °), moderate be suitably [4 °, 6 °), suitability difference for [6 °, 8 °), suitability extreme difference is more than or equal to 8 °；

By exploration, the earthquake intensity 403 of described mountain area countryside architecture land used to be evaluated is k₃°, in conjunction with above-mentioned earthquake Earthquake intensity 403 suitability classification rule, determines that according to membership function the earthquake of described mountain area countryside architecture land used to be evaluated is strong Spend 403 suitability degrees of membership: (u₁k₃, u₂k₃, u₃k₃, u₄k₃)；Membership function in this step is exactly rule defined in table 2, Wherein u₂=u₁k₃, u₂=u₂k₃, u₃=u₃k₃, u₄=u₄k₃；

4.4) the suitability classification rule of described land use type 404 is:

Highly suitable --- construction land,

Moderate is suitable --- agricultural land,

Suitability is poor --- mining lease,

Suitability extreme difference --- other；

By exploration, determine the land use type 404 of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned soil Ground usage type 404 suitability classification rule, determines described mountain area countryside architecture land used to be evaluated according to membership function Land use type 404 suitability degree of membership: (u₁k₄, u₂k₄, u₃k₄, u₄k₄)；Membership function in this step is exactly table 2 institute The rule of definition, wherein u₂=u₁k₄, u₂=u₂k₄, u₃=u₃k₄, u₄=u₄k₄；

4.5) the suitability classification rule of described Human dried bloodstains 405 is:

Highly suitable --- no or weak,

Moderate is suitable --- and weaker,

Suitability is poor --- and stronger,

Suitability extreme difference --- strong；

By exploration, determine the Human dried bloodstains 405 of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned people Class engineering activity 405 suitability classification rule, determines described mountain area countryside architecture land used to be evaluated according to membership function Human dried bloodstains 405 suitability degree of membership: (u₁k₅, u₂k₅, u₃k₅, u₄k₅)；Membership function in this step is exactly table 2 institute The rule of definition, wherein u₂=u₁k₅, u₂=u₂k₅, u₃=u₃k₅, u₄=u₄k₅；

Calculate:

$\begin{array}{c}(0.1797,0.2790,0.2109,0.1946,0.1358)\&times;\\ \left\{\begin{array}{cccc}{u}_1{k}_1,& u_2{k}_1,& u_3{k}_1,& u_4{k}_1\\ u_1{k}_2,& u_2{k}_2,& u_3{k}_2,& u_4{k}_2\\ u_1{k}_3,& u_2{k}_3,& u_3{k}_3,& u_4{k}_3\\ u_1{k}_4,& u_2{k}_4,& u_3{k}_4,& u_4{k}_4\\ u_1{k}_5,& u_2{k}_5,& u_3{k}_5,& u_4{k}_5\end{array}\right\}\\ =(u{k}_1,u{k}_2,u{k}_3,u{k}_4),\end{array}$

When obtaining considering the impact to mountain area countryside architecture land used suitability for the ecological environmental condition 400, suitability is subordinate to Degree: (u k₁, u k₂, u k₃, u k₄)；

If max(u is k₁, u k₂, u k₃, u k₄)=u k₁, then when ecological environmental condition 400 is investigated, described to be evaluated The suitability of mountain area countryside architecture land used is highly suitable；If max(u is k₁, u k₂, u k₃, u k₄)=u k₂, then from ecological ring When border condition 400 is investigated, the suitability of described mountain area countryside architecture land used to be evaluated is that moderate is suitable；If max(u is k₁, u k₂, u k₃, u k₄)=u k₃, then when ecological environmental condition 400 is investigated, described mountain area countryside architecture land used to be evaluated suitable Preferably property is that suitability is poor；If max(u is k₁, u k₂, u k₃, u k₄)=u k₄, then when ecological environmental condition 400 is investigated, described The suitability of mountain area countryside architecture land used to be evaluated is suitability extreme difference.

According to the above results, calculate:

$\begin{array}{c}(0.2150,0.3386,0.2218,0.2246)\&times;\left\{\begin{array}{cccc}u{x}_1,& u{x}_2,& u{x}_3,& u{x}_4\\ u{y}_1,& u{y}_2,& u{y}_3,& u{y}_4\\ u{z}_1,& u{z}_2,& u{z}_3,& u{z}_4\\ u{k}_1,& u{k}_2,& u{k}_3,& u{k}_4\end{array}\right\}\\ =(u_{\mathrm{syx}1},u_{\mathrm{syx}2},u_{\mathrm{syx}3},u_{\mathrm{syx}4}),\end{array}$

Obtain considering that geographic and geomorphic conditions 100, geological conditions 200, hydrologic condition 300 and ecological environmental condition 400 are right During the impact of mountain area countryside architecture land used suitability, suitability degree of membership: (u_syx1, u_syx2, u_syx3, u_syx4)；

If max(u_syx1, u_syx2, u_syx3, u_syx4)=u_syx1The then suitability of described mountain area countryside architecture land used to be evaluated For highly suitable, max(u_syx1, u_syx2, u_syx3, u_syx4)=u_syx2The then suitability of described mountain area countryside architecture land used to be evaluated Suitable, the max(u for moderate_syx1, u_syx2, u_syx3, u_syx4)=u_syx3The then suitability of described mountain area countryside architecture land used to be evaluated Poor for suitability, max(u_syx1, u_syx2, u_syx3, u_syx4)=u_syx4The then suitability of described mountain area countryside architecture land used to be evaluated For suitability extreme difference.

Embodiment 3:

The present embodiment will carry out suitability evaluation to Tongnan County Chong Kan town somewhere.This ground geomorphic type is middle mound landforms, this Plot will be used as new countryside construction land used.According to aforementioned theoretical frame, suitability evaluation is carried out to it.

(1) topography and geomorphology factor

This place gradient ensemble average is 4 °, and place slope aspect is eastwards.

(2) geologic(al) factor

Place periphery has potential slip mass.This slip mass tomography aplasia, the not higher free face in slip mass bottom. In side slope, cheuch cuts into V-shaped, and cutting degree is higher.Have described below in geological mapping report: degree of rock weathering is high, side slope Mainly have in purplish grey, thick-layer shape mud stone, mud stone presents entirely, severely-weathered, completely decomposed mainly be in argillaceous, severely-weathered in rubble Shape, rubble has block structure and strip structure, has part completely decomposed mud stone to be in prose style free from parallelism structure.Basement rock intensity is medium, and mud stone carries Force value is f_k=300～400kpa.Grade of side slope more than 28 °, structure internal friction angle is 36.8 °, and (" built with classification reference by measurement Build side slope specification "), structural cohesion 207.8kpa(measurement and classification are with reference to " building slope specification ").Slope ground body is main Composition is the directly accumulation of block stone, soil.The cementing mainly shale of constituent, cementing more closely knit (this index can pass through test arm Section test, with reference to " Code for design of building ").

(3) hydrographic factor

Place periphery side slope watery is medium, and seepage action of ground water makes side slope moist, this area's average annual rainfall 980mm, mainly concentrate 5～October and be in more than or heavy rain, account for the 86% of full total rainfall per year, rainy season surface water washes away stronger. Slip mass configured simple drainage system during investigating.

(4) eco environment facto

On the perimeter ramps of place, vegetation more develops, mostly shrub, the woods.It is distributed a small amount of farmland on the slope.Vegetation is covered Between 20%～30%, seismic fortification intensity is 6 degree to lid rate, and land use type is agricultural land, place is built, people Work disturbance is larger.

As described above, the method according to embodiment 2, determines the suitability grades degree of membership of each two-level index. Under each influence factor, the degree of membership ginseng of index is shown in Table 3.

Table 3 somewhere evaluation index degree of membership table

For topography and geomorphology 100:

$\begin{array}{c}{u}_1=\{w_{11},w_{12},w_{13}\}\&times;{\{u_{11},u_{12},u_{13}\}}^{\&prime;}\\ =\left[\begin{array}{ccc}0.3162& 0.2120& 0.4718\end{array}\right]\&times;\left[\begin{array}{cccc}1.00& 0.90& 0.00& 0.00\\ 0.15& 0.70& 0.15& 0.00\\ 0.15& 0.70& 0.15& 0.00\end{array}\right]\\ =\left[\begin{array}{cccc}0.4188& 0.7632& 0.1026& 0.0000\end{array}\right]\end{array}$

For geological conditions 200 factor: u₂=[0.6602 0.4943 0.1467 0.0643]

For hydrologic condition 300 factor: u₃=[0.1035 0.5109 0.2508 0.1522]

For ecological environment 300 factor: u₄=[0.4746 0.4886 0.1559 0.0204]

$\begin{array}{c}u=\{w_1,w_2...w_n\}\&times;{\{u_1,u_2...u_n\}}^{\&prime;}\\ =\begin{array}{}\end{array}\left[\begin{array}{cccc}0.2150& 0.3386& 0.2218& 0.2246\end{array}\right]\&times;\left[\begin{array}{cccc}0.4188& 0.7632& 0.1026& 0.0000\\ 0.6602& 0.4943& 0.1467& 0.0643\\ 0.1035& 0.5109& 0.2508& 0.1522\\ 0.4746& 0.4886& 0.1559& 0.0240\end{array}\right]\\ =\left[\begin{array}{cccc}0.4431& 0.5541& 0.1624& 0.0609\end{array}\right]\end{array}$

Evaluation result is normalized: u_syx=[0.3631 0.4540 0.1330 0.0499]

According to maximum membership grade principle, if this region is as construction land, its suitability evaluation based on ground calamity risk etc. Level is suitable for moderate.

Claims (1)

1. a kind of mountain area countryside architecture land suitability evaluation method based on ground calamity risk it is characterised in that: to be evaluated at one The geographic and geomorphic conditions (100) of the mountain area countryside architecture land used of valency carry out field exploring；The surveying of described geographic and geomorphic conditions (100) Survey index to include: the place gradient (101), place slope aspect (102) and surface feature type (103)；

1.1) the described place gradient (101) adopts number of degrees representation, and its suitability classification rule is: be highly suitably [0 °, 5 °), Moderate be suitably [5 °, 15 °), suitability difference for [15 °, 55 °), suitability extreme difference is more than or equal to 55 °；

By exploration, the place gradient (101) of described mountain area countryside architecture land used to be evaluated is x₁, in conjunction with the above-mentioned place gradient (101) suitability classification rule, determines the place gradient of described mountain area countryside architecture land used to be evaluated according to membership function (101) suitability degree of membership: (u₁x₁, u₂x₁, u₃x₁, u₄x₁)；

1.2) the suitability classification rule of described place slope aspect (102) is:

Highly suitable --- south, the southeast or southwest,

Moderate is suitable --- and eastern or western,

Suitability is poor --- northwest or northeast,

Suitability extreme difference --- north；

By exploration, determine the place slope aspect (102) of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned place slope aspect (102) suitability classification rule, determines the place slope aspect of described mountain area countryside architecture land used to be evaluated according to membership function (102) suitability degree of membership: (u₁x₂, u₂x₂, u₃x₂, u₄x₂)；

1.3) the suitability classification rule of described surface feature type (103) is:

Highly suitable --- shallow mound, Plain,

Moderate is suitable --- middle mound,

Suitability is poor --- deep mound,

Suitability extreme difference --- the above rank mountain region in low mountain；

By exploration, determine the geomorphic type (103) of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned geomorphic type (103) suitability classification rule, determines the geomorphic type of described mountain area countryside architecture land used to be evaluated according to membership function (103) suitability degree of membership: (u₁x₃, u₂x₃, u₃x₃, u₄x₃)；

Calculate:

When obtaining considering the impact to mountain area countryside architecture land used suitability for the geographic and geomorphic conditions (100), suitability degree of membership For: (u₁X, u₂X, u₃X, u₄x)；

If max is (u₁X, u₂X, u₃X, u₄X)=u₁X then investigates from geographic and geomorphic conditions (100), and described mountain area villages and small towns to be evaluated are built If the suitability of land used is highly suitable；If max is (u₁X, u₂X, u₃X, u₄X)=u₂X then investigates from geographic and geomorphic conditions (100), The suitability of described mountain area countryside architecture land used to be evaluated is that moderate is suitable；If max is (u₁X, u₂X, u₃X, u₄X)=u₃X then from Geographic and geomorphic conditions (100) are investigated, and the suitability of described mountain area countryside architecture land used to be evaluated is that suitability is poor；If max (u₁X, u₂X, u₃X, u₄X)=u₄X then investigates from geographic and geomorphic conditions (100), described mountain area countryside architecture land used to be evaluated Suitability is suitability extreme difference；

Field exploring is carried out to the geological conditions (200) of mountain area countryside architecture land used to be evaluated at；Described geological conditions (200) exploration index includes: tomography situation (201), basement rock intensity (202), grade of side slope (203), structural plane internal friction angle (204), structural plane cohesive strength (205), cheuch cutting degree (206), degree of rock weathering (207), slope ground body material group Become (208) and rock mass degree of consolidation (208)；

2.1) the suitability classification rule of described tomography situation (201) is:

Highly suitable --- no tomography in 1000m around described mountain area countryside architecture land used to be evaluated, or described to be evaluated The distance between mountain area countryside architecture land used and dormant fault<1000m but>500m,

Moderate is suitable --- the distance between described mountain area countryside architecture land used to be evaluated and dormant fault < 500m,

Suitability is poor --- described mountain area countryside architecture land used to be evaluated with enliven the distance between tomography<1000m but> 500m,

Suitability extreme difference --- described mountain area countryside architecture land used to be evaluated with enliven the distance between tomography < 500m；

By exploration, determine the tomography situation (201) of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned tomography situation (201) suitability classification rule, determines the tomography situation of described mountain area countryside architecture land used to be evaluated according to membership function (201) suitability degree of membership: (u₁y₁, u₂y₁, u₃y₁, u₄y₁)；

2.2) described basement rock intensity (202) is y₂, unit is kpa, and its suitability classification rule is:

Highly suitable --- strong, i.e. y₂> 500,

Moderate is suitable --- medium, i.e. 250 < y₂≤ 500,

Suitability is poor --- weak, i.e. 100 < y₂≤ 250,

Suitability extreme difference --- very weak, i.e. y₂≤100；

By exploration, determine the basement rock intensity (202) of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned basement rock intensity (202) suitability classification rule, determines the basement rock intensity of described mountain area countryside architecture land used to be evaluated according to membership function (202) suitability degree of membership: (u₁y₂, u₂y₂, u₃y₂, u₄y₂)；

2.3) the suitability classification rule of described grade of side slope (203) is: be highly suitably [0 °, 25 °), moderate is suitably [25 °, 35 °), suitability difference for [35 °, 45 °), suitability extreme difference is more than or equal to 45 °；

By exploration, the maximum grade of side slope (203) of described mountain area countryside architecture land used to be evaluated is y₃, in conjunction with above-mentioned side slope The gradient (203) suitability classification rule, determines the side slope of described mountain area countryside architecture land used to be evaluated according to membership function The gradient (203) suitability degree of membership: (u₁y₃, u₂y₃, u₃y₃, u₄y₃)；

2.4) the suitability classification rule of described structural plane internal friction angle (204) is: highly it is suitably greater than or be equal to 35 °, in Degree be suitably [27 °, 35 °), suitability difference for [18 °, 27 °), suitability extreme difference be [0 °, 18 °)；

By exploration, the structural plane internal friction angle (204) of described mountain area countryside architecture land used to be evaluated is y₄, in conjunction with above-mentioned knot According to membership function, structure face internal friction angle (204) suitability classification rule, determines that described mountain area countryside architecture to be evaluated is used Structural plane internal friction angle (204) the suitability degree of membership on ground: (u₁y₄, u₂y₄, u₃y₄, u₄y₄)；

2.5) described structural plane cohesive strength (205) unit is mpa, and its suitability classification rule is: is highly suitably greater than or waits In 0.13, moderate be suitably [0.09,0.13), suitability difference for [0.05,0.09), suitability extreme difference be [0,0.05)；

By exploration, the structural plane cohesive strength (205) of described mountain area countryside architecture land used to be evaluated is y₅, in conjunction with said structure Face cohesive strength (205) suitability classification rule, determines described mountain area countryside architecture land used to be evaluated according to membership function Structural plane cohesive strength (205) suitability degree of membership: (u₁y₅, u₂y₅, u₃y₅, u₄y₅)；

2.6) described cheuch cutting degree (206) unit is m, and its suitability classification rule is: be highly suitably [0,50), moderate Be suitably [50,100), suitability difference for [100,500), suitability extreme difference is more than or equal to 500；

By exploration, cheuch cutting degree (206) of described mountain area countryside architecture land used to be evaluated is y₆, in conjunction with above-mentioned cheuch Cutting degree (206) suitability classification rule, determines described mountain area countryside architecture land used to be evaluated according to membership function Cheuch cuts degree (206) suitability degree of membership: (u₁y₆, u₂y₆, u₃y₆, u₄y₆)；

2.7) described degree of rock weathering (207) adopts percentage ratio representation, and its suitability classification rule is: is highly suitably [0,10%), moderate be suitably [10%, 20%), suitability difference for [20%, 30%), suitability extreme difference be more than or equal to 30%；

By exploration, the degree of rock weathering (207) of described mountain area countryside architecture land used to be evaluated is y₇%, in conjunction with above-mentioned rock Stone rate of decay (207) suitability classification rule, determines described mountain area countryside architecture land used to be evaluated according to membership function Degree of rock weathering (207) suitability degree of membership: (u₁y₇, u₂y₇, u₃y₇, u₄y₇)；

2.8) the suitability classification rule of described slope ground body material composition (208) is:

Highly suitable --- top layer is covered by thick cohesive soil,

Moderate is suitable --- thicker cohesive soil,

Suitability is poor --- rubble and fragmentary cohesive soil,

Suitability extreme difference --- block stone, the soil body are directly piled up；

By exploration, determine slope ground body material composition (208) of described mountain area countryside architecture land used to be evaluated, in conjunction with upper State slope ground body material composition (208) suitability classification rule, described mountain area village to be evaluated is determined according to membership function Rock And Soil material composition (208) the suitability degree of membership of town construction land: (u₁y₈, u₂y₈, u₃y₈, u₄y₈)；

2.9) the suitability classification rule of described rock mass degree of consolidation (209) is:

Highly suitable --- closely knit,

Moderate is suitable --- in close,

Suitability is poor --- and slightly close,

Suitability extreme difference --- loose；

By exploration, determine the rock mass degree of consolidation (209) of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned rock mass Degree of consolidation (209) suitability classification rule, determines described mountain area countryside architecture land used to be evaluated according to membership function Rock mass degree of consolidation (209) suitability degree of membership: (u₁y₉, u₂y₉, u₃y₉, u₄y₉)；

Calculate:

When obtaining considering the impact to mountain area countryside architecture land used suitability for the geological conditions (200), suitability degree of membership: (u₁Y, u₂Y, u₃Y, u₄y)；

If max is (u₁Y, u₂Y, u₃Y, u₄Y)=u₁Y then investigates from geological conditions (200), and described mountain area countryside architecture to be evaluated is used The suitability on ground is highly suitable；If max is (u₁Y, u₂Y, u₃Y, u₄Y)=u₂Y then investigates from geological conditions (200), described to be evaluated The suitability of the mountain area countryside architecture land used of valency is that moderate is suitable；If max is (u₁Y, u₂Y, u₃Y, u₄Y)=u₃Y is then from geological conditions (200) investigate, the suitability of described mountain area countryside architecture land used to be evaluated is that suitability is poor；If max is (u₁Y, u₂Y, u₃Y, u₄Y)=u₄Y then investigates from geological conditions (200), and the suitability of described mountain area countryside architecture land used to be evaluated is suitability pole Difference；

Field exploring is carried out to the hydrologic condition (300) of mountain area countryside architecture land used to be evaluated at；Described hydrologic condition (300) exploration index includes: seepage action of ground water (301), surface water wash away (302), average annual rainfall (303) and draining arranges Apply (304)；

3.1) the suitability classification rule of described seepage action of ground water (301) is:

Highly suitable --- dry or moistening,

Moderate is suitable --- and moist or drip,

Suitability is poor --- line stream shape water outlet,

Suitability extreme difference --- retention of excessive fluid or flowing；

By exploration, determine the situation of the seepage action of ground water (301) of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned Seepage action of ground water (301) suitability classification rule, determines described mountain area countryside architecture land used to be evaluated according to membership function Seepage action of ground water (301) suitability degree of membership: (u₁z₁, u₂z₁, u₃z₁, u₄z₁)；

3.2) the suitability classification rule that described surface water washes away (302) is:

Highly suitable --- micro-,

Moderate is suitable --- and weak,

Suitability is poor --- and relatively strong,

Suitability extreme difference --- strong；

By exploration, determine that the surface water of described mountain area countryside architecture land used to be evaluated washes away (302), in conjunction with above-mentioned surface water Wash away (302) suitability classification rule, determine the earth's surface of described mountain area countryside architecture land used to be evaluated according to membership function Water washes away (302) suitability degree of membership: (u₁z₂, u₂z₂, u₃z₂, u₄z₂)；

3.3) described average annual rainfall (303) unit is mm, and its suitability classification rule is: be highly suitably [0,200), in Degree be suitably [200,250), suitability difference for [250,350), suitability extreme difference is more than or equal to 350；

By exploration, the average annual rainfall (303) of described mountain area countryside architecture land used to be evaluated is z₃, put down in conjunction with above-mentioned year All rainfall (303) suitability classification rules, determine described mountain area countryside architecture land used to be evaluated according to membership function Average annual rainfall (303) suitability degree of membership: (u₁z₃, u₂z₃, u₃z₃, u₄z₃)；

3.4) the suitability classification rule of described drainage measure (304) is:

Highly suitable --- there is self perfect drainage system,

Moderate is suitable --- there is simple drainage system,

Suitability is poor --- only several open drains,

Suitability extreme difference --- no drainage measure；

By exploration, determine the drainage measure (304) of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned drainage measure (304) suitability classification rule, determines the drainage measure of described mountain area countryside architecture land used to be evaluated according to membership function (304) suitability degree of membership: (u₁z₄, u₂z₄, u₃z₄, u₄z₄)；

Calculate:

When obtaining considering the impact to mountain area countryside architecture land used suitability for the drainage measure (304), suitability degree of membership: (u₁Z, u₂Z, u₃Z, u₄z)；

If max is (u₁Z, u₂Z, u₃Z, u₄Z)=u₁Z, then, when drainage measure (304) is investigated, described mountain area villages and small towns to be evaluated are built If the suitability of land used is highly suitable；If max is (u₁Z, u₂Z, u₃Z, u₄Z)=u₂Z, then when drainage measure (304) is investigated, institute The suitability stating mountain area countryside architecture land used to be evaluated is that moderate is suitable；If max is (u₁Z, u₂Z, u₃Z, u₄Z)=u₃Z, then from row When water measure (304) is investigated, the suitability of described mountain area countryside architecture land used to be evaluated is that suitability is poor；If max is (u₁Z, u₂Z, u₃Z, u₄Z)=u₄Z, then when drainage measure (304) is investigated, the suitability of described mountain area countryside architecture land used to be evaluated For suitability extreme difference；

Field exploring is carried out to the ecological environmental condition (400) of mountain area countryside architecture land used to be evaluated at；Described ecology ring The exploration index of border condition (400) includes: vegetation pattern (401), vegetation coverage (402), earthquake intensity (403), soil make With type (404) and Human dried bloodstains (405)；

4.1) the suitability classification rule of described vegetation pattern (401) is:

Highly suitable --- grass tree mixes and grass is in the majority,

Moderate is suitable --- and grass tree mixes and sets in the majority, and that is, grassland area is less than forest land area,

Suitability is poor --- tree,

Suitability extreme difference --- no vegetative coverage；

By exploration, determine the vegetation pattern (401) of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned vegetation pattern (401) suitability classification rule, determines the vegetation pattern of described mountain area countryside architecture land used to be evaluated according to membership function (401) suitability degree of membership: (u₁k₁, u₂k₁, u₃k₁, u₄k₁)；

4.2) described vegetation coverage (402) adopts percentage ratio representation, and its suitability classification rule is: is highly suitably greater than Or be equal to 20%, moderate be suitably [15%, 20%), suitability difference for [5%, 15%), suitability extreme difference be [0,5%)；

By exploration, the vegetation coverage (402) of described mountain area countryside architecture land used to be evaluated is k₂%, in conjunction with above-mentioned vegetation Coverage rate (402) suitability classification rule, determines the plant of described mountain area countryside architecture land used to be evaluated according to membership function Capped rate (402) suitability degree of membership: (u₁k₂, u₂k₂, u₃k₂, u₄k₂)；

4.3) described earthquake intensity (403) suitability classification rule is: be highly suitably [0,4 °), moderate be suitably [4 °, 6 °), Suitability difference for [6 °, 8 °), suitability extreme difference is more than or equal to 8 °；

By exploration, the earthquake intensity (403) of described mountain area countryside architecture land used to be evaluated is k₃°, in conjunction with above-mentioned earthquake intensity (403) suitability classification rule, determines the earthquake intensity of described mountain area countryside architecture land used to be evaluated according to membership function (403) suitability degree of membership: (u₁k₃, u₂k₃, u₃k₃, u₄k₃)；

4.4) the suitability classification rule of described land use present situation type (404) is:

Highly suitable --- construction land,

Moderate is suitable --- agricultural land,

Suitability is poor --- mining lease,

Suitability extreme difference --- other；

By exploration, determine land use present situation type (404) of described mountain area countryside architecture land used to be evaluated, in conjunction with above-mentioned According to membership function, land use type (404) suitability classification rule, determines that described mountain area countryside architecture to be evaluated is used Land use present situation type (404) the suitability degree of membership on ground: (u₁k₄, u₂k₄, u₃k₄, u₄k₄)；

4.5) the suitability classification rule of described Human dried bloodstains (405) is:

Highly suitable --- no or weak,

Moderate is suitable --- and weaker,

Suitability is poor --- and stronger,

Suitability extreme difference --- strong；

By exploration, determine the Human dried bloodstains (405) of described mountain area countryside architecture land used to be evaluated, in conjunction with the above-mentioned mankind Engineering activity (405) suitability classification rule, determines described mountain area countryside architecture land used to be evaluated according to membership function Human dried bloodstains (405) suitability degree of membership: (u₁k₅, u₂k₅, u₃k₅, u₄k₅)；

Calculate:

When obtaining considering the impact to mountain area countryside architecture land used suitability for the ecological environmental condition (400), suitability degree of membership: (u₁K, u₂K, u₃K, u₄k)；

If max is (u₁K, u₂K, u₃K, u₄K)=u₁K, then when ecological environmental condition (400) is investigated, described mountain area village to be evaluated The suitability of town construction land is highly suitable；If max is (u₁K, u₂K, u₃K, u₄K)=u₂K, then from ecological environmental condition (400) During investigation, the suitability of described mountain area countryside architecture land used to be evaluated is that moderate is suitable；If max is (u₁K, u₂K, u₃K, u₄k) =u₃K, then, when ecological environmental condition (400) is investigated, the suitability of described mountain area countryside architecture land used to be evaluated is suitable Property is poor；If max is (u₁K, u₂K, u₃K, u₄K)=u₄K, then when ecological environmental condition (400) is investigated, described mountain area to be evaluated The suitability of countryside architecture land used is suitability extreme difference；

Calculate:

Obtain considering geographic and geomorphic conditions (100), geological conditions (200), hydrologic condition (300) and ecological environmental condition (400) during impact to mountain area countryside architecture land used suitability, suitability degree of membership: (u_syx1, u_syx2, u_syx3, u_syx4)；

If max is (u_syx1, u_syx2, u_syx3, u_syx4)=u_syx1Then the suitability of described mountain area countryside architecture land used to be evaluated is height Degree is suitable, max (u_syx1, u_syx2, u_syx3, u_syx4)=u_syx2During then the suitability of described mountain area countryside architecture land used to be evaluated is Degree is suitable, max (u_syx1, u_syx2, u_syx3, u_syx4)=u_syx3Then the suitability of described mountain area countryside architecture land used to be evaluated is suitable Preferably property is poor, max (u_syx1, u_syx2, u_syx3, u_syx4)=u_syx4Then the suitability of described mountain area countryside architecture land used to be evaluated is suitable Preferably property extreme difference.