Sponge urban ecological index evaluation method based on hierarchy matter element extension method

Abstract

The present invention relates to a sponge urban ecological index evaluation method based on a hierarchy matter element extension method. A sponge urban ecological index is urban rainwater control and utilization degree. According to the sponge urban ecological index evaluation method based on the hierarchy matter element extension method, factors influencing the sponge urban ecological index are provided from two aspects of urban ecological control ability and ecological utilization ability; from an actually feasible angle of the engineering, each factor influencing the urban ecological control ability and the ecological utilization ability is analyzed comprehensively, and the basis of the evaluation method, namely a sponge urban ecological index evaluation index system, is established. On the basis of the evaluation method, an improved hierarchy matter element extension method is applied so as to obtain the sponge urban ecological index. According to the invention, the sponge urban ecological index is provided; the evaluation method for the index is established; the evaluation method based on the characteristics of the index is improved; and provides technical support is provided for the judgment of the rainwater control and utilization degree.

Description

technical field [0001] The invention belongs to the evaluation field of flood control and drainage in urban areas, and relates to an evaluation method for the level of rainwater control and utilization in urban areas. Background technique [0002] With the rapid development of economy and society, the process of urbanization continues to accelerate, and the common problems faced in the process of urban development, such as rainwater runoff pollution, flood disasters, and lack of water resources, are becoming more and more serious. In order to alleviate urban waterlogging from the source, reduce urban runoff pollution load, save water resources, protect and improve the urban ecological environment, the state has proposed a new concept of building a "sponge city" and advocated the construction of a low-impact development rainwater system. Sponge city refers to a city that can be like a sponge and has good flexibility in adapting to environmental changes and responding to natur...

AI Technical Summary

Problems solved by technology

However, most of the current evaluations are aimed at the evaluation of the risk level of urban flood control and internal waterlogging. The purpose of the evaluation is mostly to find out which areas have higher risks of flood control and internal waterlogging, and no suggestions are made for the pipeline design capabilities and low-response development measures in these areas. , so there is no clarity in the sponge city transformation

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