Comprehensive evaluation method for plot sponge city construction performance

Abstract

The invention discloses a comprehensive evaluation method for land parcel sponge city construction performance. The method comprises the following steps: determining an evaluation project; establishing a comprehensive evaluation system according to the sponge city construction target of the plot and the connotation; using Basic term, the specified item and the score adding item as evaluation elements; on the premise that the specified item meets the requirement; according to the annual runoff total amount control rate and the annual surface source pollutant total amount removal rate of the basic item relative to the improvement rate index value of the reference value of the area where the plot is located, determining a performance evaluation preliminary grade; According to the method, a comprehensive evaluation system is formed, the land parcel sponge city construction performance evaluation accuracy is improved, and the method conforms to the sponge city construction connotation and target performance evaluation requirements.

Description

technical field [0001] The invention relates to the technical field of sponge city construction, in particular to a method for comprehensively evaluating the construction performance of a block sponge city. Background technique [0002] In recent years, people have paid more and more attention to the coordination relationship between urban construction and ecological environment in the process of social development, and it is particularly important to maintain the sustainable development of social construction. Sponge city construction is a low-impact development model, which is conducive to protecting the natural ecological pattern, maintaining the authenticity of the ecological background's infiltration, stagnation, evaporation (teng), runoff and other hydrological characteristics, and protecting and restoring the natural accumulation of rainfall and runoff. Natural infiltration and natural purification can improve the natural restoration ability of the water ecosystem. T...

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Problems solved by technology

[0003] At present, my country's sponge city construction is still in the stage of planning, design and construction. For the performance evaluation of the construction effect of the sponge city on the plot, the current leading evaluation method only focuses on the "control rate of total annual runoff" and "removal rate of non-point source pollutants". These two indicators are calculated and evaluated. Although the evaluation results are direct, they are relatively one-sided. They fail to clearly and comprehensively evaluate the sponge construction performance of the land based on the connotation and goals of the sponge city construction, and there is no specific and comprehensive response to the construction of the sponge city on the land. Actual implementation

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