【摘要】 本文采用GIS作为空间分析的工具 ,分析了喀斯特流域地貌类型等下垫面因素对枯季径流的影响 ,并从流域结构的角度 ,选择了空间尺度、岩性、地貌类型、森林植被等自然因素作为参数 ,借助于SPSS软件 ,运用多元统计学的方法 ,建立了多元回归方程数学模型 ,对喀斯特流域枯季最小日流量进行预测。更多还原

【Abstract】 The affection of karst geomorphic type and other ground factors to runoff in low water period is studied by means of GIS spatial analyzing technology. A mathematic model (multivariate regression equation) is built in order to forecast the minimal daily runoff of low flow. From the point of view of the structure of karst drainage basins, space scale, rock features, land forms and forests are chosen as parameters, and Multivariate Statistical Analysis(supported by SPSS software) is being used to establish the equation.更多还原