CN102708413A - Ecological carrying index model method of urban and rural ecological planning - Google Patents

Abstract

The invention discloses a method of quantified sectorization by means of an ecological carrying index model. The method comprises the following steps of: within a target area, performing survey and inquisition on the ecological resource carrying index, the ecological elastic index and the ecological pressure index of the target area, respectively; superposing and combining the ecological resource carrying index, the ecological elastic index and the ecological pressure index with each other by means of GIS (Geographic Information Technologies); calculating the ecological carrying index by using the superposed graph layer of the ecological resource carrying index, the ecological elastic index and the ecological pressure index, thereby obtaining the ecological carrying index model for performing quantified sectorization on the target area. According to the method of quantified sectorization by means of the ecological carrying index model, information in various aspects such as ecological resources, ecological elasticity and ecological pressure is comprehensively superposed by means of GIS; the hierarchical analysis method is optimized and a quantification evaluation system is established; therefore, the inherent conditions of ecological carrying are expected to be studied comprehensively and simply; and the results of the study are expected to be implemented to spatial distribution of urban planning.

Description

The ecology load exponential model method of a kind of town and country ecological planning

Technical field

The present invention relates to a kind of ecology load exponential model that utilizes and carry out the quantification partitioned method.

Background technology

The ecology load exponential model method of town and country ecological planning (eco-carrying capacity index in urban planning) is intended on the basis of ecosystem function quality; Do not exceed under the ecosystem elastic limit condition; The amount of pollutants that environment subsystem can be dissolved; The economic scale that can support with the size of population of certain quality of life is arranged, thereby as that index foundation of the urban and rural planning resource rational application of fertilizer.It comprehensively gets according to ecological resources index, ecological elasticity indexes, ecological pressure index analysis, and docks with the technical system of city planning, implements on the spatial configuration of city planning.

Ecosystem carrying capacity evaluation method at present commonly used comprises the difference assay, comprehensive evaluation, state-space method, ecological footprints of natural vegetation net primary productivity estimation method, resource and demand etc., and various evaluation methods have been carried out relatively commentary.Point out: the size of ecosystem carrying capacity depends on ecologic environment system and social economic system two aspects, therefore the ecosystem carrying capacity evaluation index factor is divided into pressure index and pressure-bearing index two big classes, has made up the assessment indicator system of ecosystem carrying capacity.

Ecosystem carrying capacity evaluation method at present commonly used comprises the difference assay, comprehensive evaluation, state-space method, ecological footprints of natural vegetation net primary productivity estimation method, resource and demand etc.For the city, have only comprehensive evaluation could reflect truth.

The defective of prior art scheme: the situation of wanting the concentrated expression ecosystem carrying capacity to city planning and construction; Not only to take all factors into consideration the situation of ecological resources, ecological elasticity and ecological pressure, simultaneously to city planning practitioner's importantly operability with how to implement to the planning management and the enforcement aspect of city planning.

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 ecology load exponential model that utilizes and carries out the quantification partitioned method.

The ecology load exponential model that utilizes according to the embodiment of the invention carries out the quantification partitioned method; May further comprise the steps: step S100; In the target area, investigation is investigated on the spot to the ecological resources carrying index of said target area, ecological elasticity indexes, ecological pressure index respectively; Step S200 carries said ecological resources of the merging that superposes mutually of index, ecological elasticity indexes, ecological pressure index with GIS; Step S300 calculates said ecology load index with the said ecological resources carrying index after the stack, ecological elasticity indexes, ecological pressure index map layer, obtains the ecology load exponential model so that the quantification subregion is carried out in the target area.

The ecology load exponential 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 ecological resources, ecological elasticity and ecological pressure each side; The Optimization Layer fractional analysis; Set up the quantification appraisement system, the inherent situation of ecology load 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 the ecology load exponential model to carry out the quantification partitioned method can also to have following additional technical characterictic:

According to one embodiment of present invention,

Ecological resources carry index: ${\mathrm{CSI}}^{\mathrm{Res}-\mathrm{Evn}}=\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{S}_i^{\mathrm{Res}-\mathrm{Evn}}\×W_i^{\mathrm{Res}-\mathrm{Evn}};$ Wherein: CSI ^Res-evnFor resource-environment carries index;

Be resource-environment element;

Be the key element corresponding weighted value; Ecological elasticity indexes is:

Wherein, CS ^IecoBe ecological elasticity indexes; S _i ^EcoBe ecological system features key element; W _i ^EcoBe the corresponding weighted value of ecological factor of system;

The ecological pressure index is:

Wherein: CPI ^PopBe the pressure index of representing with population; The size of population for different monoids;

Quality of life weighted value for corresponding monoid population.

According to one embodiment of present invention,

Gao Shi carrying=pressure carrying/resource environment carries:

Ecology load exponential model=Gao Shi carries * (elastic carrier-elastic carrier min)

$\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{\mathrm{CSI}}^{\mathrm{eco}}=\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{\mathrm{CSI}}^G*(\mathrm{CS}{I^{\mathrm{eco}}}_i-{{\mathrm{CSI}}^{\mathrm{eco}}}_{\min }).$

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 obviously with are easily understood becoming the description of embodiment from combining figs, wherein:

Fig. 1 is that the ecology load exponential model that utilizes according to the embodiment of the invention carries out quantification partitioned method process flow diagram; With

Fig. 2 is that the ecology load exponential model that utilizes according to the embodiment of the invention carries out the synoptic diagram that superposes in the quantification partitioned method.

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 ecology load exponential 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, carry out the quantification partitioned method according to the ecology load exponential model that utilizes of the embodiment of the invention, may further comprise the steps:

Step S100, in the target area, investigation is investigated on the spot to the ecological resources carrying index of said target area, ecological elasticity indexes, ecological pressure index respectively.

Particularly, carry index, ecological elasticity indexes, ecological pressure index quantification model method, respectively Calculation results according to ecological resources.It is the main factor---the vector quantization of all kinds of ecological resources of three index correspondences in the select target zone; Set up unique territory---the application level analytic approach is confirmed the weight of each main factor; Carry out consistency check---each single-factor mutual superposition, using formula calculates three indexes.

Three formula are following:

Ecological resources carry index: ${\mathrm{CSI}}^{\mathrm{Res}-\mathrm{Evn}}=\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{S}_i^{\mathrm{Res}-\mathrm{Evn}}\×W_i^{\mathrm{Res}-\mathrm{Evn}}$

Wherein: CSI ^Res-evnFor resource-environment carries index;

For resource-environment is formed each key element;

is each key element corresponding weighted value.

Ecological elasticity indexes is: ${\mathrm{CSI}}^{\mathrm{Eco}}=\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{S}_i^{\mathrm{Eco}}\×W_i^{\mathrm{Eco}}$

Wherein, CSI ^EcoBe ecological elasticity indexes; S _i ^EcoBe each characteristic element of the ecosystem; W _i ^EcoBe the corresponding weighted value of each key element of the ecosystem.

The ecological pressure index is: ${\mathrm{CPI}}^{\mathrm{Pop}}=\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{P}_i^{\mathrm{Pop}}\×W_i^{\mathrm{Pop}}$

Wherein: CPI ^PopBe the pressure index of representing with population;

The size of population for different monoids;

Quality of life weighted value for corresponding monoid population.

Step S200 carries said ecological resources of the merging that superposes mutually of index, ecological elasticity indexes, ecological pressure index with GIS.Ecological resources are carried index, ecological elasticity indexes, ecological pressure index analysis result utilizes the GIS geographical information technology to merge stack each other; Stacked system is as shown in Figure 2; The key element of input is represented two different indices respectively, and the figure layer of output has kept all characteristics of two indexes.

Step S300 calculates said ecology load index with the said ecological resources carrying index after the stack, ecological elasticity indexes, ecological pressure index map layer, obtains the ecology load exponential model so that the quantification subregion is carried out in the target area.

In other words, the ecological resources after the stack are carried index, ecological elasticity indexes, ecological pressure index map layer by following formula calculating ecology load analysis result.At first, pass through the ratio calculation Gao Shi that pressure carries and resource environment carries earlier and carry, then the difference of Gao Shi carrying and elastic carrier and minimal elastic carrying is done product, finally obtain the numerical value of ecology load.

Gao Shi carrying=pressure carrying/resource environment carries:

$\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{\mathrm{GSI}}^G=\underset{i=1}{\overset{n}{\mathrm{\Σ}}}\mathrm{GPI}/\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{\mathrm{CSI}}^{\mathrm{res}}$

Ecology load exponential model=Gao Shi carries * (elastic carrier-elastic carrier min)

$\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{\mathrm{GSI}}^{\mathrm{eco}}=\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{\mathrm{GSI}}^G*(\mathrm{CS}{I^{\mathrm{eco}}}_i-{{\mathrm{CSI}}^{\mathrm{eco}}}_{\min })$

According to forcing normal distribution method with ecology load analysis result criteria for classification, accomplish ecology load index analysis figure, thus auxiliary Fu Zaiqu, equilibrium area, the border, overload district of confirming ecology load, the ground of promptly accomplishing the target area quantizes subregion.

Forcing normal distribution is according to the normal distribution principle, and the regularity of distribution of " broad in the middle, two is little " that promptly is commonly called as is confirmed Fu Zaiqu, equilibrium area, border, overload district according to ecology load index analysis result then.

The ecology load exponential model that utilizes according to the embodiment of the invention carries out the quantification partitioned method; Overcome and lacked in the urban ecological planning the inherent situation of all kinds of ecological resources standing crop and consumption, ecological recovery ability and existing ecological pressure and blindness develops the defective of resource; A kind of ecology load exponential model method to the town and country ecological planning of quantification has been proposed; Regulation and control, management, use have a resource, delimit Fu Zaiqu, equilibrium area, the overload district of ecological resources, thereby ensure that the ecosystem is harmonious, stable; It is complete, efficient to strengthen ecological functions; Regulate man and nature symbiosis, optimization, science is distributed configuration, the tissue of ecological resources, and reaches the index foundation of reasonable release.For the city planning developing direction provides reference.

Be that the ecology load exponential model that utilizes that example is sketched according to the embodiment of the invention carries out the quantification partitioned method below with the Huairou District, Beijing City.

The ecology load analysis is carried out in the Huairou District, Beijing City.Carry index, ecological elasticity indexes, ecological pressure index analysis result according to ecological resources, adopt formula to carry out ecology load and calculate, the result sees table 1.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, confirm Fu Zaiqu, equilibrium area, border, overload district, come the burst size of resource in the interior ecological resources standing crop of reflecting regional and consumption and the future plan.

Table 1 ecology load analytical table

According to evaluation result, Huairou town most of areas ecological resources are comparatively sufficient, belong to ecological Fu Zai district, can carry out planning and development rightly.Tang Hekou town, Beizhen City, bosom, township fraction area, Huairou are in ecologic equilibrium district, if development need is considered the existing environment of protection.The another part in Tang Hekou town area is because excessively exploitation is in ecological overload district, should the development center of gravity be placed on ecology recovering destruction region and sensitively.

Through using the present invention; Overcome and lacked in the urban ecological planning the calculating of the burst size of resource in all kinds of ecological resources standing crop and consumption and the future plan and blindness develops the defective of resource; A kind of ecology load computing method to the town and country ecological planning of quantification have been proposed; Confirm Fu Zaiqu, equilibrium area, the border, overload district of ecological resources, 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 the ecology load exponential model to carry out the quantification partitioned method, it is characterized in that, may further comprise the steps:

Step S100, in the target area, investigation is investigated on the spot to the ecological resources carrying index of said target area, ecological elasticity indexes, ecological pressure index respectively;

Step S200 carries said ecological resources of the merging that superposes mutually of index, ecological elasticity indexes, ecological pressure index with GIS;

Step S300 calculates said ecology load index with the said ecological resources carrying index after the stack, ecological elasticity indexes, ecological pressure index map layer, obtains the ecology load exponential model so that the quantification subregion is carried out in the target area.

2. the ecology load exponential model that utilizes according to claim 1 carries out the quantification partitioned method, it is characterized in that, ecological resources carry index and are: ${\mathrm{CSI}}^{\mathrm{Res}-\mathrm{Evn}}=\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{S}_i^{\mathrm{Res}-\mathrm{Evn}}\×W_i^{\mathrm{Res}-\mathrm{Evn}};$

Wherein: CSI ^Res-evnFor resource-environment carries index; Be resource-environment element;

Be the key element corresponding weighted value;

Ecological elasticity indexes is: ${\mathrm{CSI}}^{\mathrm{Eco}}=\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{S}_i^{\mathrm{Eco}}\×W_i^{\mathrm{Eco}}$

Wherein, CSI ^EcoBe ecological elasticity indexes; S _i ^EcoBe ecological system features key element; W _i ^EcoBe the corresponding weighted value of ecological factor of system;

The ecological pressure index is: ${\mathrm{CPI}}^{\mathrm{Pop}}=\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{p}_i^{\mathrm{Pop}}\×W_i^{\mathrm{Pop}}$

Wherein: CPI ^PopBe the pressure index of representing with population;

The size of population for different monoids; Quality of life weighted value for corresponding monoid population.

3. the ecology load exponential model that utilizes according to claim 2 carries out the quantification partitioned method; It is characterized in that Gao Shi carrying=pressure carrying/resource environment carries:

Ecology load exponential model=Gao Shi carries * (elastic carrier-elastic carrier min)

$\underset{I=1}{\overset{N}{\mathrm{\Σ}}}{\mathrm{CSI}}^{\mathrm{eco}}=\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{\mathrm{GSI}}^G*(\mathrm{CS}{I^{\mathrm{eco}}}_i-{{\mathrm{CSI}}^{\mathrm{eco}}}_{\min }).$

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