山间谷地水土保持方案编制优化措施研究

Research on optimization measures for compilation of soil and water conservation plans of mountain valleys

以深圳市南山区桃源街道项目为例,对山间谷地水土保持方案编制优化措施进行了研究,结果显示,落实本方案项目建设期间的施工围挡、车辆冲洗、临时排水与沉沙、临时拦挡与覆盖,以及项目建设后期的永久性排水与沉沙措施、全面的植物措施覆盖项目区可绿化区域,可合理治理项目建设流失的水土,可以达到水土保持方案确定的目标值。其中,水土流失治理度为100%,土壤流失控制比1.0,渣土防护率100%,表土保护率100%,林草植被恢复率100%,林草覆盖率45%,可以达到方案确定的目标值,可以满足南方红壤区水土流失防治指标值一级标准的要求。

Taking the Taoyuan Street project in Nanshan District of Shenzhen City as example,research was conduct⁃ed on the optimization measures for the compilation of soil and water conservation plans of mountain valleys.The re⁃sults of study show if the construction enclosure,vehicle flushing,temporary drainage and sand settling,temporary blocking and covering during the project construction period,as well as permanent drainage and sand settling mea⁃sures,comprehensive vegetation measures covering the greening area of the project area at the later stage of project construction,are implemented according to the conservation plan,the water and soil loss caused by project construc⁃tion can be reasonably controlled to achieve the target values determined in the soil and water conservation plan,with the degree of soil erosion control being 100%,the soil erosion control ratio 1.0,the residual soil protection rate 100%,the topsoil protection rate 100%,the forest and grass vegetation recovery rate 100%,and the forest and grass coverage rate 45%,which meets the requirements of the first level standard for soil erosion control index value in the southern red soil area.