基于生态补水的水环境改善效果评价体系

Study on evaluation system of improvement of water environment based on ecological water supplement

在分析生态补水对水环境影响的基础上,从水文、水力、水质角度提出改善效果评价体系,具体的评价指标包括生态补水量系数、重要节点补水效率、换水周期变化率、区域水质改善度;以常熟市生态补水试验为例,分析评估了生态补水对水环境的改善效果。结果表明,该指标体系能够为优化生态补水方案提供定量化基础,同时指导不同连通调水模拟方案间的优选分析。

On the basis of analyzing the impact of ecological water supplement on water environment, improved evaluation system is proposed from the angle of hydrology, hydraulics and water quality. Specific evaluation indexes include the quantity of ecological water supplement, efficiency of water supplement on important joint, change rate of water exchange cycle and improvement degree of water quality in the district. Taking ecological water supplement experiment in Changshu as the study case, improvement of water environment caused by ecological water supplement was analyzed and evaluated. The results show that： This index system can be a general method to evaluate the effect of ecological water supplement on water environment, and can also be used to select the optimal simulation scheme.