| 三峡花岗岩地区坡面暴雨产流过程的研究 |
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| 引用本文： | 余新晓,陈丽华.三峡花岗岩地区坡面暴雨产流过程的研究[J].北京林业大学学报,1995,17(4):67-73. |
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| 作者姓名： | 余新晓 陈丽华 |
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| 作者单位： | 北京林业大学水土保持学院 |
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| 摘 要： | 在地处长江三峡库区花岗岩地区的下岸溪典型小流域里，建立了５个代表不同土地利用现状（林地、灌草地和裸地）的径流观测场，同时进行了多次人工模拟降雨试验，通过对人工模拟降雨条件下坡面产流规律的研究，以动力波方程为理论依据，推导出了坡面产流的数学模型，并编写了ＱＢＡＳＩＣ程序，模拟实际产流的动态过程。分别以参数ａ和各场降雨产生的坡面径流总量为因变量，实际雨强Ｉｐ、雨前土壤含水量δ和 为自变量，进行多元回归，得到了参数预测方程和单场暴雨条件下坡面产流总量的预测方程。通过检验，利用本文提出的方程预测单场暴雨条件下的坡面产流过程是可靠的，在实践中可以应用。
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| 关 键 词： | 坡面径流，动力波方程，解析解，动态模拟，参数预测方程 |
Dynamic Simulation of the Process of Surface Runoff on the Sloping Field of the Three Gorges Under Rainstorm |
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| Yu Xinxiao,Chen Lihua,Zhou Changqing,Tan Peng.Dynamic Simulation of the Process of Surface Runoff on the Sloping Field of the Three Gorges Under Rainstorm[J].Journal of Beijing Forestry University,1995,17(4):67-73. |
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| Authors: | Yu Xinxiao Chen Lihua Zhou Changqing Tan Peng |
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| Abstract: | In the typical watershed──Xia’an stream belonging to the reservior area ofthe Three Gorges of Yangtze River in granitic region,five runoff plots(5m×20m)were es-tablished.Rainfall simulation experiments in the plots of various types of utilization,includ-ing woodland,shrubland and bareland,were carried out. Based on Kinematic Wave equa-tion,the authors infered the theorical solution of any point of the sloping field at anytime. Thus,the actual process of surface runoff can be simulated. The parameter,a,which deter-mines the quantity and tendency of runoff transportation was also calculated.After examina-tion, the authors find that it is reliable to use the solution in forecasting the dynamic processof runoff on sloping field under a rainstorm. |
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| Keywords: | the Three Gorges slope runoff simulation |
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