CN102637237A - Ecological resource bearing model method for urban and rural ecological planning - Google Patents

Abstract

The invention discloses a method for quantitative partitioning by an ecological resource bearing model, which comprises the following steps: carrying out investigation and survey in a target area, and carrying out GIS (geographical information sciences) vectorization on results, establishing a unified coordinate system, and drawing the coordinate system into thematic maps; respectively grading by using preset classification standards; respectively calculating weight values by using an analytic hierarchy process; carrying out mutual superposition and merging on the thematic maps by using the GIS; and carrying out weighted averaging on single factors of water resources, single factors of land resources, single factors of forestry resources and single factors of mineral resources so as to obtain analysis results of an ecological resource bearing model, thereby completing the quantitative partitioning on the target area. According to the invention, the information in each aspect of ecological resources is integrally superposed through the GIS, and through optimizing the analytic hierarchy process and establishing a quantitative evaluation system, the inherent conditions of ecological resource bearing are expected to be studied simply and comprehensively, and implemented to the spatial publishing of urban planning.

Description

The ecological resources of a kind of town and country ecological planning carry model method

Technical field

The present invention relates to a kind of ecological resources carrying model that utilizes and carry out the quantification partitioned method.

Background technology

It is special a kind of space ecological analysis method to the various ecological resources power system capacity abilities in the ecosystem in the ecological planning of town and country that ecological resources carry model method, is used to judge the utilization of resources present situation of town and country ecological planning.The resource bearing index is estimated is the resource capability level that supply to the various natural resourcess of the ecosystem can provide for human development on sustainable, balanced basis.The size of resource bearing power directly depend on to resource utilize mode and means, utilize mode different, the consequence of generation is just different.Resource bearing power selects water environment, land resource, forest resourceies, mineral resources, tourist resources as evaluation index.Select staple, analyze stack, implement on the spatial configuration of city planning.

(eologieal resoures): be the ability that physical environment keeps species, ecological resources evaluation method representativeness mainly contains following several types at present:

Subjective tax power method (Delphi, AHP method): resource evaluation method and evaluation coefficient Weight Determination achievement in research.

Excellent, the shortcoming of objective tax power method (PCA, factor analysis, grey correlation method and entropy method), and think the subjective tax power method of utilization the subjective random of decision maker of having mixed, and use objective tax power method to lack decision maker's wish.

The defective of prior art scheme: the situation of wanting concentrated expression local area ecological resource to city planning and construction; Not only to estimate, simultaneously to city planning practitioner's importantly operability with how to implement to the planning management and the enforcement aspect of city planning its ecological resources.

Summary of the invention

The present invention one of is intended to solve the problems of the technologies described above at least to a certain extent or provides a kind of useful commerce to select at least.For this reason, one object of the present invention is to propose a kind of ecological resources with the target area and carries model and carry out the quantification partitioned method.

The ecological resources carrying model that utilizes according to the embodiment of the invention carries out the quantification partitioned method; Comprise the steps: step S100; In the target area; Investigate, survey to water resource single-factor, land resource single-factor, forest resourceies single-factor, mineral resources single-factor; And, set up unified coordinate system with GIS vector quantization as a result, be depicted as water resource single-factor thematic maps, land resource single-factor thematic maps, forest resourceies single-factor thematic maps, mineral resources single-factor thematic maps; Step S200 divides said water resource single-factor, land resource single-factor, forest resourceies single-factor, the monofactorial grade of mineral resources respectively with predetermined grade scale; Step S300, the application level analytic approach is calculated said water resource single-factor, land resource single-factor, forest resourceies single-factor, the monofactorial weighted value of mineral resources respectively; Step S400 adopts GIS with the merging that superposes mutually of said water resource single-factor thematic maps, land resource single-factor thematic maps, forest resourceies single-factor thematic maps, mineral resources single-factor thematic maps; Step S500 obtains the analysis result that ecological resources carry model to said water resource single-factor, land resource single-factor, forest resourceies single-factor, mineral resources single-factor weighted mean, thereby accomplish the quantification of target area is distinguished.

The ecological resources carrying model that utilizes according to the embodiment of the invention carries out the quantification partitioned method; Through the informix stack of GIS (geographical information technology) with the ecological resources each side; The Optimization Layer fractional analysis; Set up the quantification appraisement system, the inherent situation of ecological resource bearing is studied in expectation comprehensively easily, and implements in the space issue of city planning.

In addition, according to the above embodiment of the present inventionly utilize ecological resources to carry model to carry out the quantification partitioned method and can also have following additional technical characterictic:

According to one embodiment of present invention; Said step S100 comprises, step S101 is with water resource single-factor, land resource single-factor, forest resourceies single-factor, mineral resources single-factor vector quantization; Polar plot is continuously nonoverlapping unique territory; Unique territory is meant that each key element of vector quantization interconnects but non-overlapping copies, need meet the following conditions

S1∪S2∪...∪Sn＝S

Si∩Sj＝0

S is certain monofactorial scope, and S1, S2, Si, Sj, Sn are meant a plurality of small area that certain single-factor the inside is divided, and n is the zonule sum; Step S102 sets up unified coordinate system system, the water resource single-factor figure behind the vector quantization, land resource single-factor figure, forest resourceies single-factor figure, mineral resources single-factor figure is unified in defines projection among the GIS, conversion is projected as the Gauss projection coordinate system.

According to one embodiment of present invention, said step S300 comprises, step S301, and said a plurality of ecological single-factors are n, relatively n ecological single-factor yz=(yz ₁, yz ₂... yz _n) to the influence of target zz, thus confirm proportion shared in z, get two factor y at every turn _iAnd y _jUse a _IjExpression y _iWith y _jTo the ratio of the influence degree of z, measure a in 1～9 ratio scale _Ij, with numeral 1～9 and reciprocal, obtain weighted value by the difference of monofactorial importance value of the different ecological of quantification shown in the table 1 bearing pressure and influence property as scale,

Table 1

Judgment value	Comparison	Intensity
			1	Y i＝Y j	Equate
3	Y i＞∞Y j	Y iBe better than Y slightly j
			5	Y i＞＞Y j	Y iObviously be better than Y j
7	Y i＞＞＞Y j	Y iCompare Y jMuch better
			9	Y i＞Y j	Y iExtremely be better than Y j
1/3	Y i＜Y j	Y iSlightly inferior to Y j
			1/5	Y i＜＜Y j	Y iObviously inferior to Y j
1/7	Y i＜＜＜Y j	Y iCompare Y jMuch inferior
			1/9	Y i＜∞Y j	Y iDefinitely inferior to Y j

Annotate: 2,4,6,8 and 1/2,1/4,1/6,1/8 expression intensity is between corresponding adjacent rank

Step S302, n is constituted one by element relatively and compares the judgment matrix A=(a of (in pairs relatively) in twos _Ij) _{N * n}. obviously, judgment matrix has character,

$A=\left(\begin{array}{cccc}{a}_{11}& a_{12}& ...& a_{1n}\\ a_{21}& a_{22}& ...& a_{2n}\\ .& .& & .\\ .& .& & .\\ .& .& & .\\ a_{n1}& a_{n2}& ...& a_{\mathrm{nn}}\end{array}\right)$

a _ij＞0， $a_{\mathrm{ji}}=\frac{1}{a_{\mathrm{ij}}},$ a _ii＝1(i，j＝1，2，...n)

Step S303, weight coefficient calculates.The product Z of each row of judgment matrix _iThen press Formula calculates Z _iN th root W _iTo vectorial W _i=[W ₁, W ₂... W _n] ^TCarry out normalization and calculate, obtain proper vector, calculate maximum characteristic root λ max: $\mathrm{\λ}\mathrm{Max}={\mathrm{\Σ}}_{i=1}^n\frac{\left(\mathrm{KW}\right)i}{\mathrm{NWi}};$

Step S304 carries out consistency check to each the ecological single-factor weighted value that obtains, and the check formula does

CI＝(λmax-n)/(n-1)；

Step S305 obtains the monofactorial weight of each ecology load pressure w as a result _iMean value,

$\mathrm{Wi}=\frac{{\mathrm{\Σ}}_{i=1}^m\mathrm{Di}}{m}$ And w1+w2+...+wn=1

Wherein wi is a certain single-factor weight, and m is for calculating the sum of weight, and di is the monofactorial some weighted values of this ecology load pressure.

Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.

Description of drawings

Above-mentioned and/or additional aspect of the present invention and advantage are from obviously with easily understanding becoming the description of embodiment in conjunction with figs, wherein:

Fig. 1 is that the ecological resources that utilize according to the embodiment of the invention carry the process flow diagram that model carries out the quantification partitioned method; With

Fig. 2 carries out the synoptic diagram that superposes in the quantification partitioned method according to the ecological resources carrying model that utilizes of the embodiment of the invention.

Embodiment

Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, be intended to be used to explain the present invention, and can not be interpreted as limitation of the present invention.

In description of the invention; It will be appreciated that; The orientation of indications such as term " " center ", " vertically ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " clockwise ", " counterclockwise " or position relation are for based on orientation shown in the drawings or position relation; only be to describe with simplifying for the ease of describing the present invention; rather than the device or the element of indication or hint indication must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.

In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more a plurality of these characteristics can be shown or impliedly comprised to the characteristic that is limited with " first ", " second " clearly.In description of the invention, except as otherwise noted, the implication of " a plurality of " is two or more, only if clear and definite qualification is arranged in addition.

In the present invention, only if clear and definite regulation and qualification are arranged in addition, broad understanding should be done in terms such as term " installation ", " linking to each other ", " connection ", " fixing ", for example, can be to be fixedly connected, and also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly through intermediary, can be the connection of two element internals.For those of ordinary skill in the art, can understand above-mentioned term concrete implication in the present invention as the case may be.

In the present invention; Only if clear and definite regulation and qualification are arranged in addition; First characteristic second characteristic it " on " or D score can comprise that first and second characteristics directly contact, can comprise that also first and second characteristics are not directly contacts but through the contact of the additional features between them.And, first characteristic second characteristic " on ", " top " and " above " comprise first characteristic directly over second characteristic and oblique upper, or only represent that the first characteristic level height is higher than second characteristic.First characteristic second characteristic " under ", " below " and " below " comprise first characteristic directly over second characteristic and oblique upper, or only represent that the first characteristic level height is less than second characteristic.

The ecological resources carrying model of describing in detail according to the embodiment of the invention with reference to accompanying drawing below that utilizes carries out the quantification partitioned method.

As shown in Figure 1, utilize ecological resources to carry model to carry out the quantification partitioned method, comprise the steps: according to the embodiment of the invention

Step S100; In the target area; Investigate, survey to water resource single-factor, land resource single-factor, forest resourceies single-factor, mineral resources single-factor; And, set up unified coordinate system with GIS vector quantization as a result, be depicted as water resource single-factor thematic maps, land resource single-factor thematic maps, forest resourceies single-factor thematic maps, mineral resources single-factor thematic maps.

Particularly, all kinds of ecological resources of collection target area for information about.The information content should contain: water resource (comprising regional water resources amount, regional water resources amount usable, external water diversion volume, present situation water consumption, following water requirement etc.), land resource (fertility, land type etc.), forest resourceies (farmland, forest land, meadow, Wetland ecological benefit and quality etc.), mineral resources (ore reserve, mineral products utilization etc.), tourist resources (scenic spot ground quantity, area etc.).Investigate measurement in the target area, be depicted as thematic maps.

Select in the water environment factor, the land resource factor, the forest resourceies factor, the mineral resources factor, the tourist resources factor; Each ecological resources single-factor is used the GIS vector quantization; Set up unified coordinate system, be depicted as water resource single-factor thematic maps, land resource single-factor thematic maps, forest resourceies single-factor thematic maps, mineral resources single-factor thematic maps.

With each ecological resources single-factor vector quantization, it is continuously nonoverlapping unique territory that polar plot requires.Unique territory is meant that each key element of vector quantization interconnects but non-overlapping copies.This be since in city planning every land used only corresponding to a kind of soil utilize character be determine.Need meet the following conditions

S1∪S2∪...∪Sn＝S

Si∩Sj＝0

S is certain monofactorial scope, and S1, S2, Si, Sj, Sn are meant a plurality of small area that certain single-factor the inside is divided.N is the zonule sum.

Set up unified coordinate system system, the ecological resources single-factor figure behind the vector quantization is unified in defines projection among the GIS, conversion is projected as China's Gauss projection coordinate system commonly used.

Step S200 divides said water resource single-factor, land resource single-factor, forest resourceies single-factor, the monofactorial grade of mineral resources respectively with predetermined grade scale.

That is to say, each ecological resources single-factor of choosing is utilized present situation and load-bearing capacity, divided rank according to evaluation resources such as the utilization of resources coefficient of existing code requirement, resource development potentiality coefficients.Grade is low more, and it is low more that ecological resources carry index, can exploit and utilize the space big more; Otherwise grade is high more, and it is strong more that ecological resources carry index, possibly occur the ecological resources overload more.

Utilization of resources situation analysis

Utilization of resources factor beta _{Utilization of resources coefficient}: β _{Utilization of resources coefficient}=Q _Utilization/ Q _{Amount usable}

Table 1

Utilization of resources coefficient scope	Evaluation result
		β Utilization of resources coefficient＜0.5	Be big REGION OF WATER INJECTION OILFIELD
0.5＜β Utilization of resources coefficient＜0.9	Be potential district still
		0.9＜β Utilization of resources coefficient＜1.1	District in a basic balance
1.1＜β Utilization of resources coefficient＜1.3	General over-extraction district
		β Utilization of resources coefficient＞1.3	Serious over-extraction district

Resource potential is analyzed

Resource potential alpha: α=Q _{The resource amount usable}/ Q _{Total resources}

Table 2

Step S300, the application level analytic approach is calculated said water resource single-factor, land resource single-factor, forest resourceies single-factor, the monofactorial weighted value of mineral resources respectively.

Compare n ecological resources single-factor yz=(yz ₁, yz ₂... yz _n) to the influence of target zz (ecological resources carrying index), thus confirm their shared proportion in z, get two factor y at every turn _iAnd y _jUse a _IjExpression y _iWith y _jTo the ratio of the influence degree of z, measure a in 1～9 ratio scale _IjWith numeral 1～9 and reciprocal, obtain weighted value by the difference of monofactorial importance value of the different ecological of quantification shown in the table 3 resource bearing and influence property as scale.

Table 3

Judgment value	Comparison	Intensity
			1	Y i＝Y j	Equate
3	Y i＞∞Y j	Y iBe better than Y slightly j
			5	Y i＞＞Y j	Y iObviously be better than Y j
7	Y i＞＞＞Y j	Y iCompare Y jMuch better
			9	Y i＞Y j	Y iExtremely be better than Y j
1/3	Y i＜Y j	Y iSlightly inferior to Y j
			1/5	Y i＜＜Y j	Y iObviously inferior to Y j
1/7	Y i＜＜＜Y j	Y iCompare Y jMuch inferior
			1/9	Y i＜∞Y j	Y iDefinitely inferior to Y j

Annotate: 2,4,6,8 and 1/2,1/4,1/6,1/8 expression intensity is between corresponding adjacent rank

N is constituted one by element relatively and compares the judgment matrix A=(a of (in pairs relatively) in twos _Ij) _{N * n}. obviously, judgment matrix has character:

$A=\left(\begin{array}{cccc}{a}_{11}& a_{12}& ...& a_{1n}\\ a_{21}& a_{22}& ...& a_{2n}\\ .& .& & .\\ .& .& & .\\ .& .& & .\\ a_{n1}& a_{n2}& ...& a_{\mathrm{nn}}\end{array}\right)$

a _ij＞0， $a_{\mathrm{ji}}=\frac{1}{a_{\mathrm{ij}}},$ a _ii＝1(i，j＝1，2，...n)

Weight coefficient calculates.The product Z of each row of judgment matrix _iThen press

Formula calculates Z _iN th root W _iTo vectorial W _i=[W ₁, W ₂... W _n] ^TCarry out normalization and calculate, obtain proper vector.

Calculate maximum characteristic root λ max: $\mathrm{\λ}\mathrm{Max}={\mathrm{\Σ}}_{i=1}^n\frac{\left(\mathrm{KW}\right)i}{\mathrm{NWi}}$

Ecological resources single-factor weighted value to obtaining carries out consistency check.

In order to check the consistency problem of judgment matrix; The consistance that needs to calculate coincident indicator CI judgment matrix also has randomness; This consistance at random can represent that the value of RI is relevant with the dimension size of matrix with mean random coincident indicator RI, relative uniformity index CR=CI/RI.It is generally acknowledged that when CR≤0.1, judgment matrix meets the crash consistency condition basically; When CR＞0.1, given judgment matrix does not meet the crash consistency condition, need adjust and revise.

CI=(λ max-n)/(n 1)

Popular, if 1 pair of single-factor of ecological resources single-factor, 2 influence value a＞1 (being that single-factor 1 is bigger than single-factor 2), 2 pairs of single-factors of single-factor, 3 influence value b＞1, then in logic, 1 pair of single-factor 3 influence value of single-factor are c=ab＞1 certainly.But it is impossible when being configured to the comparison matrix, requiring to satisfy c=ab.Therefore move back and require paired comparator matrix that certain consistance is arranged.If c＜1, then the result is inconsistent, must recomputate weighted value.

Obtain the monofactorial weight of each ecological resources w as a result _iMean value.

$\mathrm{Wi}=\frac{{\mathrm{\Σ}}_{i=1}^m\mathrm{Di}}{m}$ And w1+w2+...+wn=1

Wherein wi is a certain single-factor weight, and m is for calculating the sum of weight, and di is the monofactorial some weighted values of these ecological resources.

Step S400 adopts GIS with the merging that superposes mutually of said water resource single-factor thematic maps, land resource single-factor thematic maps, forest resourceies single-factor thematic maps, mineral resources single-factor thematic maps.

In other words, utilize the GIS geographical information technology to merge stack each other each ecological resources single-factor, stacked system is as shown in Figure 2, and the key element of input is represented two different ecological resources single-factors respectively, and the figure layer of output has kept two monofactorial all characteristics.

Step S500 obtains the analysis result that ecological resources carry model to said water resource single-factor, land resource single-factor, forest resourceies single-factor, mineral resources single-factor weighted mean, thereby accomplish the quantification of target area is distinguished.

Specifically, each ecological resources single-factor weighted mean is obtained ecological resources and carry analysis result.

${\mathrm{CSI}}^{\mathrm{res}-\mathrm{evn}}=\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{S}_i^{\mathrm{res}-\mathrm{evn}}\×W_i^{\mathrm{res}-\mathrm{evn}}$

In the formula: CSI ^Res-evnFor resource-environment carries index;

For resource-environment is formed each key element;

Be each key element corresponding weighted value.

According to the analysis result criteria for classification of forcing normal distribution method with the ecological resources class factor, accomplish ecological resources factorial analysis figure, thus auxiliary Fu Zaiqu, equilibrium area, the border, overload district of confirming ecological resources.

Forcing normal distribution is according to the normal distribution principle; The regularity of distribution of " broad in the middle, two is little " that promptly is commonly called as; Confirm opinion rating and each grade shared number percent in sum in advance, carry the auxiliary Fu Zaiqu of confirming of index analysis result, equilibrium area, border, overload district according to ecological resources then.

The ecological resources carrying model that utilizes according to the embodiment of the invention carries out the quantification partitioned method; Through the informix stack of GIS (geographical information technology) with the ecological resources each side; The Optimization Layer fractional analysis; Set up the quantification appraisement system, the inherent situation of ecological resource bearing is studied in expectation comprehensively easily, and implements in the space issue of city planning.The present invention is carried model through a kind of ecological resources to the town and country ecological planning of quantification; Come utilizing present situation and can carrying scope of COMPREHENSIVE CALCULATING water environment, land resource, forest resourceies, mineral resources, tourist resources; With auxiliary jointly Fu Zaiqu, equilibrium area, the overload district that delimit ecological resources of ecological elasticity indexes, ecological pressure index, for the city planning developing direction provides reference.

Be that example explains that the ecological resources carrying model that utilizes according to the embodiment of the invention carries out the quantification partitioned method below with the Huairou District, Beijing City.

Utilize ecological resources to carry model to carry out the quantification partitioned method and ecological resources are carried out in the Huairou District, Beijing City carry and analyze with the embodiment of the invention; On the basis of collecting water environment, land resource, forest resourceies, mineral resources, tourist resources data, selected water resource utilization, land resource, the forest reserves, tourist resources, SO2 emissions, water pollution situation and the solid waste ability etc. of dissolving for use.

Adopt analytical hierarchy process to carry out weight calculation, the result sees table 4.Calculate through carrying out the spatial analysis stack in the GIS-Geographic Information System, ask for evaluation result.Formulate the suitable classification of evaluation set, construction ecology load single-factor evaluation district comes the present situation of utilizing of the interior ecological resources of reflecting regional.

Table 4

Ecological resources carry single-factor	Weight
		The water resource occupancy volume	0.079317
The water resource quality	0.112831
		The water resource utilization	0.159751
Suitable field size	0.07588
		Land productivity	0.11382
Forest reserves area	0.22365
		The forest reserves year amount usable	0.09585
Tourist resources	0.02838
		The tourism condition	0.01892
Carbon dioxide	0.01892
		Water pollutes	0.05496
Solidfied material	0.01832

According to evaluation result, the ecological resources load situation in most of mountain area is better than the Plain.It is higher that the Huairou town respectively presses down the middle and south human settlements district ecological resources carrying index, and it is lower that northern natural region ecological resources carry index.Explain that comparatively speaking the ecological resources potentiality are bigger in northern territory, Huairou town, can suitably develop.And area, middle and south construction exploitation amount is big, and the ecological resources overload appears in some areas, should strengthen considering to recover and improve.

Through using the present invention; Overcome and lacked the defective that the evaluation of all kinds of ecological resources bearing capacities is blindly developed resource in the urban ecological planning; A kind of resource bearing power computing method to the town and country ecological planning of quantification have been proposed, for the city planning developing direction provides reference.

In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.

Although illustrated and described embodiments of the invention above; It is understandable that; The foregoing description is exemplary; Can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change the foregoing description under the situation that does not break away from principle of the present invention and aim within the scope of the invention, modification, replacement and modification.

Claims (3)

1. one kind is utilized ecological resources carrying model to carry out the quantification partitioned method, it is characterized in that, comprises the steps:

Step S100; In the target area; Investigate, survey to water resource single-factor, land resource single-factor, forest resourceies single-factor, mineral resources single-factor; And, set up unified coordinate system with GIS vector quantization as a result, be depicted as water resource single-factor thematic maps, land resource single-factor thematic maps, forest resourceies single-factor thematic maps, mineral resources single-factor thematic maps;

Step S200 divides said water resource single-factor, land resource single-factor, forest resourceies single-factor, the monofactorial grade of mineral resources respectively with predetermined grade scale;

Step S300, the application level analytic approach is calculated said water resource single-factor, land resource single-factor, forest resourceies single-factor, the monofactorial weighted value of mineral resources respectively;

Step S400 adopts GIS with the merging that superposes mutually of said water resource single-factor thematic maps, land resource single-factor thematic maps, forest resourceies single-factor thematic maps, mineral resources single-factor thematic maps;

Step S500 obtains the analysis result that ecological resources carry model to said water resource single-factor, land resource single-factor, forest resourceies single-factor, mineral resources single-factor weighted mean, thereby accomplish the quantification of target area is distinguished.

2. according to claim 1ly utilize ecological resources to carry model to carry out the quantification partitioned method, it is characterized in that, said step S100 comprises,

Step S101; With water resource single-factor, land resource single-factor, forest resourceies single-factor, mineral resources single-factor vector quantization, polar plot is continuously nonoverlapping unique territory, and unique territory is meant that each key element of vector quantization interconnects but non-overlapping copies; Need meet the following conditions

S1∪S2∪...∪Sn＝S

Si∩Sj＝0

S is certain monofactorial scope, and S1, S2, Si, Sj, Sn are meant a plurality of small area that certain single-factor the inside is divided, and n is the zonule sum;

Step S102 sets up unified coordinate system system, the water resource single-factor figure behind the vector quantization, land resource single-factor figure, forest resourceies single-factor figure, mineral resources single-factor figure is unified in defines projection among the GIS, conversion is projected as the Gauss projection coordinate system.

3. according to claim 1ly utilize ecological resources to carry model to carry out the quantification partitioned method, it is characterized in that, said step S300 comprises,

Step S301, relatively n ecological single-factor yz=(yz ₁, yz ₂... yz _n) to the influence of target zz, thus confirm proportion shared in z, get two factor y at every turn _iAnd y _jUse a _IjExpression y _iWith y _jTo the ratio of the influence degree of z, measure a in 1～9 ratio scale _Ij, use numeral 1～9 and inverse thereof as scale, obtain weighted value by the single-factor of ecology load shown in the table 1,

Table 1

Judgment value Comparison Intensity 1 Y _i＝Y _j Equate 3 Y _i＞∞Y _j Y _iBe better than Y slightly _j 5 Y _i＞＞Y _j Y _iObviously be better than Y _j 7 Y _i＞＞＞Y _j Y _iCompare Y _jMuch better 9 Y _i＞Y _j Y _iExtremely be better than y _j 1/3 Y _i＜Y _j Y _iSlightly inferior to Y _j 1/5 Y _i＜＜Y _j Y _iObviously inferior to Y _j 1/7 Y _i＜＜＜Y _j Y _iCompare y _jMuch inferior 1/9 Y _i＜∞Y _j Y _iDefinitely inferior to Y _j

Annotate: 2,4,6,8 and 1/2,1/4,1/6,1/8 expression intensity is between corresponding adjacent rank

Step S302, n is constituted one by element relatively and compares the judgment matrix A=(a of (in pairs relatively) in twos _Ij) _{N * n}. obviously, judgment matrix has character,

$A=\left(\begin{array}{cccc}{a}_{11}& a_{12}& ...& a_{1n}\\ a_{21}& a_{22}& ...& a_{2n}\\ .& .& & .\\ .& .& & .\\ .& .& & .\\ a_{n1}& a_{n2}& ...& a_{\mathrm{nn}}\end{array}\right)$

a _ij＞0， $a_{\mathrm{ji}}=\frac{1}{a_{\mathrm{ij}}},$ a _ii＝1(i，.j＝1，2，...n)

Step S303, weight coefficient calculates.The product Z of each row of judgment matrix _iThen press

Formula calculates Z _iN th root W _iTo vectorial W _i=[W ₁, W ₂... W _n] ^TCarry out normalization and calculate, obtain proper vector,

Calculate maximum characteristic root λ max: $\mathrm{\λ}\mathrm{Max}={\mathrm{\Σ}}_{i=1}^n\frac{\left(\mathrm{KW}\right)i}{\mathrm{NWi}}$

Step S304 carries out consistency check to each the ecological single-factor weighted value that obtains, and the check formula does

CI＝(λmax-n)/(n-1)；

Step S305 obtains the monofactorial weight of each ecology load pressure w as a result _iMean value,

$\mathrm{Wi}=\frac{{\mathrm{\Σ}}_{i=1}^m\mathrm{Di}}{m}$ And w1+w2+...+wn=1

Wherein wi is a certain single-factor weight, and m is for calculating the sum of weight, and di is the monofactorial some weighted values of this ecology load pressure.

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