摘要
利用河龙区间晋西北地区8 条一级入黄支流的资料,以及1985 年山西省成数抽样调查资料、1989 年土地详查资料、1996 年土地变更调查资料和1997 年在研究区域内采用二阶等距抽样调查得到的数据,结合三川河流域国家一、二期重点治理验收资料,分析确定了晋西北地区水土保持措施的核实率、有效保存面积及分布情况,为大面积计算水土保持措施的减洪减沙效益奠定了良好的基础。
According to the annual administrative reports of 8 tributary of the Yellow River from Hekou to Longmen,the data of round number sampling in 1985,detail survey in 1989,land use change survey in 1996 and two stage sampling in 1997,and combining with acceptance check material of the first and the second period national main harness area in the basin of Sanchuan river, the preservation ratio of the water and soil conservation measures and its distribution have been analysed and determined. This work have made a good foundation for the calculation of benefits soil and water conservation measures on large area.
基金
水利部第二期黄河水沙变化研究基金
