四湖流域农田排水有关问题研究

Problems in Farmland Drainage in Four-lakes Watershed

通过对四湖流域深入调查 ,提出应根据排水区业已形成的格局和降水分布差异分区选择排水设计雨量 ;联系项目实际论述了涝渍地集水小区明排系统规划中涉及的排水泵站经济性、排水沟道优化布局、排水工程建设的适度规模等问题 ;

With comprehensive investigation and analysis, it is considered that design rainfall for farmland drainage should be selected according to the present situation of drainage projects and the differences in rainfall spatial distribution. Based upon practices in the project area, some relevant problems, such as economy of pump station, optimum distribution of drainage canals, suitable scale of drainage project and so on, were discussed and analyzed for surface drainage system planning. Finally, subsurface drainage techniques and its extension in waterlogged areas also were discussed.