| 基于地表能量平衡与SCS模型的祁连山水源涵养能力研究 |
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| 引用本文： | 聂忆黄.基于地表能量平衡与SCS模型的祁连山水源涵养能力研究[J].地学前缘,2010,17(3):269-275. |
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| 作者姓名： | 聂忆黄 |
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| 作者单位： | 1东北林业大学 林学院, 黑龙江 哈尔滨 150040
2环境保护部 卫星环境应用中心, 北京 100029 |
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| 摘 要： | 基于区域水量平衡,利用地表能量平衡的原理计算陆地实际蒸散发量,采用SCS模型计算地表径流量,提出了一种定量评估区域水源涵养量的实用方法。利用该方法和GIS软件平台,结合1982-2003年遥感数据和对祁连山水源涵养重要区水源涵养能力强弱的空间分布及其变化规律进行了计算和分析。结果表明:(1)祁连山山地水源涵养重要区内水源涵养能力最强的区域为中部和东南部地区,而西部地区涵养水源的能力相对较弱;(2)祁连山山地水源涵养重要区内中部和靠东南部的水源涵养能力减弱比较明显,特别是以门源回族自治县为中心,形成了水源涵养能力持续减弱带。
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| 关 键 词： | 水源涵养 陆地蒸散 SCS模型 |
| 收稿时间： | 2010-01-07 |
A study of the water conservation of Qilian Mountains based on surface energy balance and SCS model |
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| Nie Yihuang.A study of the water conservation of Qilian Mountains based on surface energy balance and SCS model[J].Earth Science Frontiers,2010,17(3):269-275. |
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| Authors: | Nie Yihuang |
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| Institution: | 1School of Forestry, Northeast Forestry University, Harbin 150040, China;
2Satellite Environment Center, Ministry of Environmental Protection, Beijing 100029, China |
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| Abstract: | In this paper,we propose a practical method for quantitative assessment of regional water conservation based on regional water balance,actual evapotranspiration from land surfaces calculated by applying the principles of the surface energy balance system,and surface runoff by SCS (Soil Conservation Service) model.Using this method and GIS software platform combined with meteorological data from 1980 to 2003,we calculated and analyzed the spatial distribution and its variation of water conservation in Qilian Mountains.The result shows that:(1) in the water conversation area of Qilian Mountains,water-holding capacities in central and southeastern region are higher than that of in western region;(2) water-holding capacities in central and southeastern region have been decreasing obviously,and the deterioration area was constantly formed with the Menyuan Hui autonomous county as the center. |
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| Keywords: | water conservation land evapotranspiration SCS model |
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