A Discussion on Macroscopic Pattern for Controlling Large Watershed in Loess Hilly Gullied Region
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    Abstract:

    The longitudinal and transverse vally gadient in Xingzhihe water-shed was measured, it decreases progressively from upper to lower rea-ches.There is a componet function relation between transverse valleygradient (first order branches) and valley length. In this watershed thepopulation density,precipitation and temperature increase by degrees butsoil erosion intensity decreases with decreasing of altitude. According tofour factors above,the authors have suggested macroscopic control patternthrough longitudinal, transverse and vertical zones in whole Xingzhihewatershed,so the Xingzhihe watershed is divided into three zories: Aero-sowing herbs and shrubs zone; mixed zone of forest, shrubbery, pastureand agriculture; agriculture zone with basic farmlands.

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徐国礼,鲁翠瑚.黄土地区大型流域宏观治理方案的探讨[J].水土保持通报英文版,1989,(3):26-33

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  • Online: December 01,2014
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