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| 青藏高原水源涵养能力时空变化规律 | |
| 引用本文： | 聂忆黄,龚斌,李忠.青藏高原水源涵养能力时空变化规律[J].地学前缘,2010,17(1):373. |
| 作者姓名： | 聂忆黄 龚斌 李忠 |
| 作者单位： | 1. 东北林业大学,黑龙江,哈尔滨,150040;中国环境科学研究院,北京,100012 2. 中国环境科学研究院,北京,100012 3. 青海省环境科学研究设计院,青海,西宁,810007 |
| 摘 要： | 利用水均衡原理和地表能量平衡原理定量评估青藏高原地区水源涵养量,利用多年降雨和蒸发数据研究青藏高原水源涵养能力在空间上的分布状况及其随时间的变化过程,探讨近几十年来青藏高原水源涵养能力时空变化规律。结果表明,近几十年来青藏高原主要形成了3个水源涵养量持续减少的中心区域和2个水源涵养量增强的区域,其中水源涵养能力减弱的区域主要分布于雅鲁藏布江源头、青藏高原南部边缘地带和青海省东部与甘肃交界地带;水源涵养能力增强的区域主要分布于雅鲁藏布江中游河谷地带、澜沧江和金沙江中游河谷地带。 |
| 关 键 词： | 水源涵养 陆地蒸散 水资源安全 |
The spatial-temporal variations of water conservation capacity in Qinghai-Tibet Plateau |
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| NIE Yi-Huang,GONG Bin,LI Zhong.The spatial-temporal variations of water conservation capacity in Qinghai-Tibet Plateau[J].Earth Science Frontiers,2010,17(1):373. | |
| Authors: | NIE Yi-Huang GONG Bin LI Zhong |
| Abstract: | The distribution of water conservation in Qinghai-Tibet Plateau was explored using the principle of water balance and the meteorological data from 1980 to 2003.The spatial-temporal variations of water conservation capacity in Qinghai-Tibet Plateau through the years are monitored by use of RS and GIG method.The result shows that there are 3 zones in which the water conservation capacity is weakened continuingly:(1) the headstream of Yarlung Zangbo River,(2) the marginal land of south Qinghai-Tibet Plateau,(3) the provincial border regions of Qinghai and Gansu province.And there are 2 zones in which water conservation capacity is enhanced continuously.(1) the valley in middle reaches of Yarlung Zangbo River,(2) the Valley in middle reaches of Lancangjiang River and Jinshajiang River. |
| Keywords: | water conservation land evapotranspiration security of water resource |
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