Health evaluation and diagnosis method for urban landscape lake water ecosystem

Abstract

The invention discloses a health evaluation and diagnosis method for an urban landscape lake water ecosystem, and the method comprises the steps: designing an index system into a hierarchical structure which is divided into a target layer, a criterion layer and an index layer, wherein the target layer is the high summary of a lake health evaluation index system and is used for reflecting the overall level of a lake health condition, the criterion layer reflects attributes and levels of lake health conditions from different sides, including four aspects of water quality, bottom mud, biocenosis and lakeshore zone, the index layer is formed by selecting a plurality of indexes under the criterion layer, and the index evaluation is mainly quantitative and is assisted by qualitative. specifically dividing various factors influencing lake water quality health, performing assigning and scoring, determining evaluation weights of a criterion layer and an index layer by adopting an analytic hierarchy process, finally, evaluating the lake health condition according to a calculation result, and formulating corresponding restoration countermeasures.

Description

technical field [0001] The invention relates to the technical field of lake water quality management, in particular to a method for evaluating and diagnosing the health of an urban landscape lake water ecosystem. Background technique [0002] With the implementation of the national "ecological civilization" strategy, more attention has been paid to environmental pollution control and natural environment ecological protection, and the people's growing demand for a better life has also made people have higher requirements for the urban ecological environment. The development of modern cities tends to be "water-friendly city" and "human-water harmony". At the same time, urban lakes are an important element of urban ecological landscape patterns. Therefore, creating urban lake scenic spots is one of the key points of urban construction. In the process of operation, maintenance, management, and restoration of urban landscape lakes, it is necessary to evaluate the health status of...

AI Technical Summary

Problems solved by technology

[0005] In addition, many of the currently published lake health evaluation methods cannot provide specific and executable operation methods, for example, the index evaluation standards are not clear, or the use of overly complex mathematical models makes it impossible to be well promoted in practice. and application

At the same time, after evaluating the health status of the lake water ecosystem, these evaluation methods cannot provide ideas on how to improve the health status of the lake water ecosystem.

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