暴雨条件下水土保持措施效益分析

摘要

对已建和在建项目在"7·20"暴雨中的积水和排水情况、雨洪利用措施发挥的作用、水土保持临时措施发挥的效果进行了调查.结果表明,雨洪利用措施和水土保持临时措施均发挥了保持水土的效益.布设雨洪利用措施的建设项目,项目区基本无积水,仅部分项目积水在下凹式绿地区域,积水深度2~3 cm;布设水土保持临时措施的项目无积水或积水较浅.同时指出目前存在的问题,呼吁设计、施工、管理等各单位共同努力,将水土保持临时措施落实到位,使雨洪利用措施效益最大化.%The drainage situation, the effect of rain flood utilization measures and the effect of temporary measures of soil and water conservation in "7·20" rainstorm by existing and under construction projects were investigated.The results showed that rain water storage and infiltration measures and temporary measures of soil and water conservation played the role of soil and water conservation.There was no water or having depth of 2-3 cm water in sunken-lawn to the project of rain water storage and infiltration measures, and no water or shallow water to the project of temporary of soil and water conservation.This paper pointed out the existing problems, appealed design, construction, management and other units work together to implement temporary measures of soil and water conservation and maximiz the benefits of rainwater utilization measures.