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闽东南花岗岩侵蚀区土壤侵蚀规律与治理 Ⅲ.泥沙输移动态的研究
引用本文:郑添发,黄炎和,卢程隆,傅勤,李振宗. 闽东南花岗岩侵蚀区土壤侵蚀规律与治理 Ⅲ.泥沙输移动态的研究[J]. 福建农林大学学报(自然科学版), 1991, 0(2)
作者姓名:郑添发  黄炎和  卢程隆  傅勤  李振宗
作者单位:福建安溪官桥水土保持试验站,福建农学院土壤农化系,福建农学院土壤农化系,福建省水土保持试验站,福建安溪官桥水土保持试验站 安溪官桥 362441,福州 350002,福州 350002,福州 350001,安溪官桥 362441
摘    要:30min瞬时雨强极显著地影响着泥沙输移比,30min瞬时雨强越大,泥沙输移比越小,且泥沙输移比随30min瞬时雨强有y=1.20x~(-0.35)的变化规律.植被覆盖度也是影响泥沙输移比的因素,被覆度越大则输移比越大.降雨量和坡度对泥沙输移比无显著影响.本文还探讨了泥沙输移比值,认为该地区的泥沙输移比约为0.42—0.44.

关 键 词:泥沙输移比  30min瞬时雨强  降雨量  坡度  覆盖度

The Soil Erosion and Its Control in the Granite Eroding Area of Southeast Fujian Ⅲ.Study on Sediment Dilivery Change
Zheng Tianfa Huang Yanhe Lu Chenlong Fu Qin Li Zhengzhong. The Soil Erosion and Its Control in the Granite Eroding Area of Southeast Fujian Ⅲ.Study on Sediment Dilivery Change[J]. Journal of Fujian Agricultural and Forestry University, 1991, 0(2)
Authors:Zheng Tianfa Huang Yanhe Lu Chenlong Fu Qin Li Zhengzhong
Affiliation:Zheng Tianfa~1 Huang Yanhe~2 Lu Chenlong~2 Fu Qin~3 Li Zhengzhong~1
Abstract:Sediment dilivery ratio (SDR) is affected by the thirty-minute instantaneous rainfall rate (30 min IRR) and vegetable cover degree remarkably. The greater 30 min IRR (x) is, the smaller SDR (y) is; and there exists the following relation between them: Y=1.20x~(-0.35). The greater vegetable cover degree is, the greater SDR is. Rainfall and slope have unsignificant influence on SDR. The paper also shows that SDR is about 0.42-0.44 in the granite-eroding area of southeast Fujian.
Keywords:sediment dilivery ratio  the thirty-minute instantaneous rainfall rate  rainfall  slope  vegetable cover degree
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