黄土高原典型小流域水土流失治理成效分析
Effects of Soil and Water Loss Control in typical small watershed of Loess Plateau
科学开展流域水土流失治理工程效益评价既是客观反映工程自身规律必然要求,也是对区域水土流失治理成效评价的前提与基础。以山西木窑沟小流域为研究对象,基于三因子水土流失评价模型、对比分析等方法,对流域水土流失治理工程实施前(2015年)和实施后(2019年)土壤侵蚀状况进行对比研究。结果表明:(1)工程实施 3年以来,流域水土流失综合治理度增加约 1%;流域林草覆盖率提高约 3%,其中,流域低覆盖、中覆盖、高覆盖区分别增加 0.7%、2.78%和 2.…查看全部>>
Evaluation of benefits of water and soil loss control projects in Basins is not only the inevitable requirement of objectively reflecting the laws of the project itself,but also the premise and basis of the effectiveness evaluation of regional soil and water loss control.Taking the Muyaogou watershed in Shanxi Province as the research object,based on the three factor soil erosion evaluation model and comparative analysis methods,the soil erosion before and a…查看全部>>
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