A comprehensive evaluation method of regional water ecological service value

Abstract

The invention provides a comprehensive evaluation method of regional water ecological service value, which comprises the following steps: dividing the regional water ecological service function into product provision, regulation, support and cultural service function; Determining the evaluation index of each function and constructing the evaluation index system of regional aquatic ecosystem service value; Calculating the value of each function according to the index system; According to the calculated value, calculating the total value of the regional water ecological service function, wherein, the evaluation indicators of product function include household water, industrial water, fishery products, hydropower energy storage and water source temperature; The evaluation indexes of regulating function include surface water resource regulation, groundwater resource regulation and recharge, water quality purification, climate regulation, flood irrigation and air purification. The evaluation indexes of supporting functions include carbon sequestration, oxygen release, nutrient cycling, biodiversity conservation, quality of life improvement and prevention of land subsidence. The evaluation indexes of cultural service function include tourism, leisure and entertainment, water landscape function and water culture inheritance.

Description

technical field [0001] The invention relates to the technical field of ecological environment, in particular to a method for comprehensive evaluation of regional water ecological service value. Background technique [0002] Evaluation of regional water ecological service functions has always been a difficult point in the study of ecosystem service functions. The establishment of the evaluation index system and the application of evaluation methods have not yet formed a mature system. At present, domestic and foreign scholars have carried out certain exploration and research on the research of the evaluation index system. For example, some studies have made useful attempts in estimating the ecological value of water. However, there are still many deficiencies in the existing technology, for example, the estimated results are too large or too small to be convincing, and it is difficult to play a role in the process of water resource allocation; The service function connotati...

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Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies of the prior art, the present invention comprehensively simulates and evaluates the value of the regional water ecological service function through system integration of multiple evaluation methods, so as to overcome the shortcomings of the existing water ecological service value evaluation target, single method and technology.

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