| 嘉陵江上游不同植被类型小流域典型降雨产流特征分析 |
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| 引用本文： | 宫渊波,张君,陈林武,张健,王巧红.嘉陵江上游不同植被类型小流域典型降雨产流特征分析[J].水土保持学报,2010,24(2). |
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| 作者姓名： | 宫渊波 张君 陈林武 张健 王巧红 |
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| 作者单位： | 1. 四川农业大学林业生态工程省级重点实验室,四川,雅安,625014
2. 四川省林业科学研究院,成都,610081 |
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| 基金项目： | 国家科技支撑计划项目(2003BA606A;2006BAC01A11); 四川农业大学211工程创新团队项目 |
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| 摘 要： | 降水-径流关系研究是了解流域生态系统水文过程的一个重要途径,分析了典型降雨对嘉陵江上游不同小流域的影响。结果表明:在典型降雨条件下,不同小流域的产流量除受降雨和流域面积的影响外,流域下垫面特征特别是植被因子影响产流的主要原因,植被恢复能有效提高侵蚀性降雨等级,降低大到暴雨的地表径流量;植被因素对较小面积的小流域具有较强的拦截降水的作用,但随着小流域面积的增大和土地利用类型的复杂化,这种作用会逐渐减弱;森林覆盖率高的流域能有效阻缓地表径流,洪峰出现的时间,延长产流历时,表现出明显的产流滞后效应和延长效应。
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| 关 键 词： | 植被类型 小流域 降雨-产流 |
Characteristic of Typical Rainfall-Runoff on Different Vegetation Types in the River Basin in the Upper Jialing River |
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| GONG Yuan-bo,ZHANG Jun,CHEN Lin-wu,ZHANG Jian,WANG Qiao-hong.Characteristic of Typical Rainfall-Runoff on Different Vegetation Types in the River Basin in the Upper Jialing River[J].Journal of Soil and Water Conservation,2010,24(2). |
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| Authors: | GONG Yuan-bo ZHANG Jun CHEN Lin-wu ZHANG Jian WANG Qiao-hong |
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| Abstract: | The relationship of precipitation-runoff is an important way to know the hydrological process of watershed ecosystem.The effect of typical rainfall on different river basin was studied in the upper Jialing River.The results indicated:the runoff of different river basin is not only affect by rainfall and basin area but also the characteristic of underlying surface especially vegetation factor is the main factor.Vegetation restoration can effective strengthen the erosive rainfall and reduce the surface runoff... |
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| Keywords: | vegetation type river basin rainfall-runoff |
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