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以农作型小流域为研究对象,分析土地利用与拦蓄径流的关系,建立小流域拦蓄径流量与不同土地利用方式面积多元回归模型,分析不同类型土地的拦蓄径流量。结果表明:单位面积水田、梯田、坡耕地的拦蓄径流量分别为43.74万、1.81万、-28.00万m3.km-2,相对于水田和梯田而言,坡耕地对拦蓄径流具有抑制作用;单位面积有林地、灌木林地、疏幼林地、经果林地、草地的拦蓄径流量分别为-0.997万、105.50万、29.03万、1.05万、222.12万m3.km-2。
Taking the small-scale farming-type watershed as the research object, the relationship between land use and run-off runoff was analyzed, and the multi-regression model of the runoff-holding runoff in different catchment areas and different land use types was established to analyze the runoff-holding capacity of different types of land. The results showed that the runoff-holding capacity of paddy fields, terraced fields and sloping fields per unit area were 437,400, 18,100, -280,000 m3.km-2, respectively. Compared with paddy fields and terraced fields, The area with forest land, shrubbery land, sparse forest land, fruit grove and grassland is 0.997 million, 10.55 million, 290,300, 10,500 and 2,222,100 m3.km-2 respectively.