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该文以甘肃省的桥子东沟、西沟流域为研究对象,分析其相似度,确定采用流域对比分析法,通过对两流域的水文监测资料(1986-2004年)的统计及对比分析,研究沟壑综合整治对小流域水沙的影响。结果表明:沟壑综合整治措施改变了小流域水分和泥沙的贮存状况,在相同降水条件下,相似流域的径流流量和含沙量过程变化趋势基本一致,但已治理流域内的产流量和产沙量指标均小于未治理流域的,且影响程度与降水量的大小相关,降水量越大,其减少量绝对值越大,但减少的相对值反而越小。
Based on the analysis of the similarities between the watersheds and the watersheds in Dongzigou and Xigou watersheds in Gansu Province, the author uses the comparative analysis method of watersheds. Through the statistics and comparative analysis of hydrological monitoring data (1986-2004) of the two basins, Influence of Comprehensive Regulation of Gully on Water and Sediment in Small Watershed. The results showed that comprehensive improvement measures of ravines changed the storage of water and sediment in small watershed. Under the same rainfall conditions, the trend of runoff and sediment change in similar watershed was basically the same, but the yield and productivity of the controlled watershed The amount of sediment is less than that of the unmanaged watershed, and the degree of influence is related to the amount of precipitation. The larger the amount of precipitation, the greater the absolute value of the decrease, but the smaller the relative value of the decrease is.