Method for evaluating service function of wetland ecosystem

An ecosystem and functional technology, applied in instruments, data processing applications, calculations, etc., can solve the problems that the functional index cannot be combined into one, and the overall function of the wetland cannot be determined.

Inactive Publication Date: 2010-09-29
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the function index obtained by the existing wetland evaluation method cannot be combined ...

Method used

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  • Method for evaluating service function of wetland ecosystem
  • Method for evaluating service function of wetland ecosystem
  • Method for evaluating service function of wetland ecosystem

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specific Embodiment approach 1

[0013] Specific implementation mode 1: In this implementation mode, a method for evaluating wetland ecosystem service functions is carried out according to the following method: using the method of analytic hierarchy process, establishing a hierarchical structure model, constructing a judgment matrix, and then combining with the expert scoring method, performing single-level sorting and After the overall sorting, and finally passing the consistency test, the wetland ecosystem service function evaluation is realized.

[0014] In this embodiment, the selection principles for determining wetland function evaluation indicators are scientific, comprehensive, typical, operable and independent.

[0015] The hierarchical structure established in this embodiment is composed of the general target layer (A layer), the comprehensive evaluation layer (B layer) and the project evaluation layer (C layer).

[0016] The overall target layer (layer A) is to evaluate the wetland ecosystem functi...

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Abstract

The invention discloses a method for evaluating the service function of a wetland ecosystem, which relates to a method for evaluating the service function. The invention solves the problems of the existing method for evaluating a wetland that as obtained function indexes cannot be combined into an overall wetland function score, the overall wetland function cannot be determined. The method comprises the following steps of: establishing a hierarchical structure model by using a hierarchical analysis method, constructing a judgment matrix, performing a single hierarchical sequencing and an overall hierarchical sequencing by combining an expert evaluating method, and performing a consistency check to realize the evaluation of the wetland ecosystem service function. Aiming at the overall wetland evaluation, the method screens indexes for evaluating the wetland function and constructing an index system for comprehensively evaluating the wetland and evaluates the service function of the wetland ecosystem, thereby determining the overall wetland function. The method has a certain instructive significance for the wetland monitoring and current wetland investigation of China.

Description

technical field [0001] The invention relates to a method for evaluating service functions. Background technique [0002] As the kidney of the earth, wetlands have ecological environment and social service functions such as supplying water sources, equalizing floods, regulating climate, degrading pollutants, providing animal and plant habitats, providing resources and leisure and sightseeing places, and are the common wealth of mankind. The ocean is one of the three major ecosystems on Earth. [0003] The total area of ​​wetland in my country is 38.4855 million hm 2 , ranking first in Asia and fourth in the world. However, due to the limitation of people's understanding of wetland ecological functions and the simple pursuit of economic benefits, for a long time under the joint action of many factors such as reclamation, infrastructure occupation, environmental pollution, overhunting, sedimentation, unreasonable water conservancy construction, etc., Wetland resources have b...

Claims

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Application Information

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IPC IPC(8): G06Q90/00
Inventor 姜明吕宪国邹元春刘晓辉
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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