| 新安江水库四条入库河流水文状况的比较研究 |
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| 引用本文： | 何黎明,余位蓬,王明月.新安江水库四条入库河流水文状况的比较研究[J].浙江林学院学报,1989(2). |
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| 作者姓名： | 何黎明 余位蓬 王明月 |
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| 作者单位： | 浙江林学院
(何黎明，余位蓬)，浙江林学院(王明月) |
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| 摘 要： | 根据武强溪、进贤溪、新安江和练江等4条入库河流近20年的水文和气象资料的比较分析,得到如下结果:4条河流的年输沙量与年降水量呈显著的指数相关。单位面积上单位降水量负荷的年输沙量,70年代与60年代相比有增加的迹象。这可能与河流流域森林植被资源的破坏有关。武强溪与进贤溪相比,前者的年迳流深、迳流系数较大,洪水迳流量所占比例较小,枯水迳流量所占比例较大,土壤流失量显著地少,这些可能是森林植被的差异造成的。因此,加强各流域的封山育林,提高森林复盖率,对保护新安江水库有重要意义。
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| 关 键 词： | 新安江水库 输沙量 迳流量 |
Comparative Study on the Hydrological Situation of Four Rivers into the Xin'anjiang Reservoir |
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| He Liming et al..Comparative Study on the Hydrological Situation of Four Rivers into the Xin'anjiang Reservoir[J].Journal of Zhejiang Forestry College,1989(2). |
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| Authors: | He Liming |
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| Institution: | Zhejiang Forestry College |
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| Abstract: | The hydrological situation of four rivers into the Xin'anjiang Reservoir was studied comparatively according to the information in the recent 20 years about hydrology and meteorology of Wuqiang River, Jinxian River, Xin'an River and Liangjiang River. The relationship between the annual silt discharge of four rivers and the annual precipitation of watersheds is in an exponential correlation. The annual silt discharge per unit area and precipitation in the 70's is greater than that in the 60's, which is likely relative to the destroy of forest vegetation of watersheds in the recent decade. Comparing Wuqiang River with Jinxian River, the former has greater runoff amount, runoff coefficient and proportion runoff amount during flood season, smaller proportion of runoff amount during dry season and silt discharge amount. The results are possibly induced by difference of forest vegetation of watersheds. Therefore it is significant for pretection of the Xin'anjiang Reservoir to extend the area of close hillsides of watersheds, forbid reclamation and denudation, and increas the ratio of forest vegetation cover. |
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| Keywords: | Xin'anjiang Reservoir silt discharge runoff |
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