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Ecological environment evaluation method based on DPSIR model

A technology of ecological environment and evaluation method, applied in the field of ecological environment, can solve the problems of lack of intuition, incapability of accurate positioning, etc., and achieve the effect of visualization and intuition

Pending Publication Date: 2020-08-11
杭州领见科技有限公司
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Problems solved by technology

[0004] The ecological environment evaluation method based on the DPSIR model provided by the present invention aims to solve the problem that the indicators in the construction process of the ecological environment evaluation model are mostly based on statistics or survey data, which lack intuitiveness and cannot accurately locate the ecological environment in geographical space. Disadvantages of areas where the environment is at risk

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  • Ecological environment evaluation method based on DPSIR model
  • Ecological environment evaluation method based on DPSIR model
  • Ecological environment evaluation method based on DPSIR model

Examples

Experimental program
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Effect test

Embodiment 1

[0059] like figure 1 As shown, an ecological environment assessment method based on the DPSIR model includes the following steps:

[0060] S110. Combining the DPSIR model with geospatial information, remote sensing image data and feature indicators to output an ecological environment evaluation index system;

[0061] S120. Calculate and standardize the first ecological environment evaluation index in the ecological environment evaluation index system using the index calculation principle, and output the standardized ecological environment evaluation index;

[0062] S130. Perform spatial processing on the standardized ecological environment evaluation index using GIS and RS technology, and output the ecological environment index;

[0063] S140. Combine the ecological environment index with the standardized ecological environment evaluation index to calculate through analytic hierarchy process and calculation model in sequence, and output an ecological environment comprehensive...

Embodiment 2

[0069] like figure 2 As shown, an ecological environment assessment method based on the DPSIR model, including:

[0070] S210. Combining the DPSIR model with geospatial information, remote sensing image data and feature indicators to output an ecological environment evaluation index system;

[0071] S220. Calculate and standardize the first ecological environment evaluation index in the ecological environment evaluation index system using the index calculation principle, and output the standardized ecological environment evaluation index;

[0072] S230. Taking the township as a unit, using GIS technology to calculate the spatial analysis index through the spatial interpolation method, and output the interpolation value of the interpolation point, the calculation formula is:

[0073]

[0074] where w i is the weight, Z(x i ,y i ) is a discrete point, and Z(x, y) is an interpolation point.

[0075] S240. Perform regional statistical analysis according to the interpolati...

Embodiment 3

[0079] like image 3 As shown, an ecological environment assessment method based on the DPSIR model, including:

[0080] S310. Combining the DPSIR model with geospatial information, remote sensing image data and feature indicators to output an ecological environment evaluation index system;

[0081] S320. Calculate and standardize the first ecological environment evaluation index in the ecological environment evaluation index system using the index calculation principle, and output the standardized ecological environment evaluation index;

[0082] S330. Perform spatial processing on the standardized ecological environment evaluation index using GIS and RS technology, and output the ecological environment index;

[0083] S340, judge the ecological environment index using the five-level scaling method, and output a judgment matrix;

[0084] S350. Calculate the judgment matrix, and output the weight values ​​of the indexes of each layer;

[0085] S360. Using the calculation mo...

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Abstract

The invention discloses an ecological environment evaluation method based on a DPSIR model. The method comprises the following steps: (1) building an ecological environment evaluation index system based on the DPSIR model through combining with the basic conditions of a water source region and fully considering the geographic space information; (2) calculating each index in the ecological environment evaluation index system, and standardizing the ecological environment evaluation indexes with different dimensions; (3) in combination with GIS and RS technologies, performing spatialization processing on each standardized ecological environment evaluation index by taking villages and towns as units; (4) determining an ecological environment evaluation index weight value based on an analytic hierarchy process; and (5) calculating scores of each layer of the DPSIR according to the weight values, wherein the scores comprise driving force, pressure, state, influence, response and final ecological environment comprehensive evaluation indexes. The method has the advantages of process and spatialization, the ecological environment indexes can be displayed in the form of a map, and visualization of the ecological environment indexes and intuitive evaluation of the ecological environment on the geographic position are realized.

Description

technical field [0001] The invention relates to the field of ecological environment, in particular to an ecological environment evaluation method based on a DPSIR model. Background technique [0002] The data used in the existing ecological environment assessment models are mostly statistical data and survey data, and the ecological assessment results are mostly in data format. Based on the DPSIR model, combined with GIS and RS technology, this method considers the spatial position information of the ecological environment evaluation index, which makes the ecological environment evaluation and geographic information better combined, and at the same time increases the intuitiveness of the results. Ecological environment assessment is the core issue of ecological environment. In foreign countries, ecological environment evaluation research is an important basic scientific research. The ecological environment evaluation index is established on the basis of ecosystem risk and e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/18G06F16/29G06Q50/26
CPCG06F17/18G06F16/29G06Q50/26
Inventor 周祖煜王俊霞黎晓峰李天齐
Owner 杭州领见科技有限公司
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