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《Yellow River》 1992-12
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Statistics of Runoff-sediment Relationship and Calculation of Soil Conservation Benefits for the Area above Qingyang, Xichuan of the Malian River

Ran Dachuan (Xifeng Soil and Water Conservation Experimental Station of YRCC, Xifeng, Gansu, 745000)  
The author puts forward an empirical formula of runoff yield and sediment production which is suited to the area above Qingyang, Xichuan of the Malian River and applies it into calculation through statistical analysis on the relationship between runoff and sediment of the area before controlling and combining rainfall factors and characteristics of runoff yield and sediment production of the area. The benefits of soil conservation calculated by the method of hydrology and method of soil conservation are shown that during the period of 1970~1989, the total runoff reduction is 236~246 million cubic meters and the benefit 5.6%~5.9%; the total sediment reduction is 166~279 million tons and the benefits 10.1%~17.1%.
【Fund】: 黄河流域水保科研基金
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