| 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 |
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| 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) |
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| 作者姓名： | 郑添发 黄炎和 卢程隆 傅勤 李振宗 |
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| 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 |
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| 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.
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| 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 |
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| 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) |
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| Authors: | Zheng Tianfa Huang Yanhe Lu Chenlong Fu Qin Li Zhengzhong |
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| Affiliation: | Zheng Tianfa~1 Huang Yanhe~2 Lu Chenlong~2 Fu Qin~3 Li Zhengzhong~1 |
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| 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. |
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| Keywords: | sediment dilivery ratio the thirty-minute instantaneous rainfall rate rainfall slope vegetable cover degree |
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