| 东北小流域夏季枯水径流对覆被变化的响应 |
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| 引用本文： | 姚月锋,满秀玲,蔡体久.东北小流域夏季枯水径流对覆被变化的响应[J].水科学进展,2011,22(6):789-794. |
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| 作者姓名： | 姚月锋 满秀玲 蔡体久 |
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| 作者单位： | 东北林业大学林学院, 黑龙江哈尔滨150040 |
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| 基金项目： | 国家林业局公益性行业专项经费资助项目(201104005);国家林业局948项目资助(2009-4-43)~~ |
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| 摘 要： | 根据枯水径流在流量过程曲线上的定义,绘制枯水径流流量过程曲线(Low Flow Duration Curve,LFDC),分析1973～2004年间东北地区育林沟流域夏季桔水径流对造林引起覆被变化的响应规律.结果表明,1983～2004年相对于1973～1982年,流域森林覆被增加了l5%,多年平均夏季枯水径流相对增加11.84%,各年夏季枯水径流增加值却随着森林覆被的增加整体呈现递减的趋势.其中,流域覆被的增加对LFDC曲线上0～50%频率的夏季枯水径流增加尤为显著.LFDC曲线能够更好地体现超过某一频率的枯水径流对覆被变化的响应规律,对于枯水季节水文水资源的利用管理具有重要的参考价值.
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| 关 键 词： | 枯水径流 覆被变化 水资源 造林 |
| 收稿时间： | 2010-12-10 |
Summer low-flow response to forest cover change in small-sized watersheds of Northeast China |
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| YAO Yue-feng,MAN Xiu-ling,CAI Ti-jiu.Summer low-flow response to forest cover change in small-sized watersheds of Northeast China[J].Advances in Water Science,2011,22(6):789-794. |
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| Authors: | YAO Yue-feng MAN Xiu-ling CAI Ti-jiu |
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| Affiliation: | YAO Yue-feng,MAN Xiu-ling,CAI Ti-jiu(Forestry College,Northeast Forestry University,Harbin 150040,China) |
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| Abstract: | The summer low-flow response to forest cover change in the small-sized Yulingou watershed of Northeast China was analyzed using two graphical methods(the double mass curve(DMC) and the low-flow duration curve(LFDC)).The low-flow data is obtained from the 32 summer periods(June-August) of 1973-2004 and used for deriving the flow duration curve(FDC).Compared to the baseline the period 1973-1982,there is a 15% increase in forest covers during the period 1983-2004.The latter is the result of reforestation activ... |
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| Keywords: | low-flow forest cover change water resources reforestation |
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