| 黄土区坡地降雨入渗产流过程中的滞后效应 |
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| 引用本文： | 刘贤赵,康绍忠.黄土区坡地降雨入渗产流过程中的滞后效应[J].水科学进展,2001,12(1):56-60. |
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| 作者姓名： | 刘贤赵 康绍忠 |
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| 作者单位： | 中国科学院水利部水土保持研究所, 陕西杨陵712100 |
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| 基金项目： | 国家杰出青年基金资助项目(49725102);所长基金资助项目(B98017100). |
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| 摘 要： | 利用黄土高原沟壑区典型小流域坡地天然降雨入渗-产流的实测资料分别对考虑滞后效应与不考虑滞后效应的情况进行了模拟研究,结果表明:在降雨入渗-产流过程中,滞后效应加快入渗速率,减少径流量;滞后模型使土壤含水量、产流过程更加接近实测值.由此可见,土壤水滞后效应对土壤含水量、入渗速率、产流过程及产流量都有相当大的影响,因此在水量转化研究工作中考虑滞后效应的影响是必要的.
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| 关 键 词： | 黄土区 坡地 降雨 入渗 径流 滞后效应 |
| 文章编号： | 1001-6791(2001)01-0056-05 |
| 收稿时间： | 1999-08-09 |
| 修稿时间： | 1999年8月9日 |
Hysteresis in Process of
Rainfall-Infiltration-Runoff on Hillslpoe in Loess Area |
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| LIU Xian-zhao,KANG Shao-zhong.Hysteresis in Process of
Rainfall-Infiltration-Runoff on Hillslpoe in Loess Area[J].Advances in Water Science,2001,12(1):56-60. |
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| Authors: | LIU Xian-zhao KANG Shao-zhong |
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| Institution: | Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water-Resources, Yangling 712100, China |
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| Abstract: | The observed data of hillslope under naturalrainfall-infiltration-runoff condition on small watershed in Loess Plateau are simulated by the models considered and unconsidered hysteresis, respectively. The simulated results shows that the hysteresis increases the infiltration rate and reduces the runoff volume during the process of rainfall-infiltration-runoff. The predicted soil water content and runoff volume are approximate to the measured values. From this, we know that the hysteresis has a considerable influence on soil moisture, infiltration rate, runoff process and runoff volume. It is very necessary to consider the effects of hysteresis in the study on water exchange in the future. |
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| Keywords: | loess area hillslope rainfall infiltration runoff hysteresis |
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