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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。
Using the data of 8 first-level tributaries of the Yellow River in northwestern Shanxi Province of Heilongjiang Province, as well as the sample survey data of Shanxi Province in 1985, the detailed land survey in 1989, the survey data of land change in 1996 and the second Based on the data obtained from the isometric sampling survey and the data of the first and second phase of national key management in the Sanchuan River Basin, the verification rate, effective conservation area and distribution of soil and water conservation measures in northwestern Shanxi were analyzed and determined to calculate the soil and water conservation measures for large- Of the flood and sediment reduction benefit has laid a good foundation.