| 青藏高原近25年来河流、湖泊的变迁及其影响因素 |
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| 引用本文： | 朱大岗,孟宪刚,郑达兴,乔子江,邵兆刚,杨朝斌,韩建恩,余佳,孟庆伟,吕荣平.青藏高原近25年来河流、湖泊的变迁及其影响因素[J].地质通报,2007,26(1):22-30. |
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| 作者姓名： | 朱大岗 孟宪刚 郑达兴 乔子江 邵兆刚 杨朝斌 韩建恩 余佳 孟庆伟 吕荣平 |
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| 作者单位： | 1. 中国地质科学院地质力学研究所,北京,100081
2. 西藏国土资源厅,西藏,拉萨,850000 |
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| 基金项目： | 中国地质调查局项目《青藏高原生态地质环境遥感调查与监测》(任务书编号:基[2003]002-32，工作项目编码:200315100002)，《青藏高原第三纪重点古湖泊环境演变序列》(任务书编号:科[2003]007-02，工作项目编码:200313000066)成果 |
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| 摘 要： | 结合20世纪70年代中期的MSS图像和90年代末期的ETM 图像解译,对近25年来青藏高原河流、湖泊的分布现状及其变迁进行了分析。研究表明,青藏高原河流总体上变化不明显,部分地区外流水系个别河段略有摆动,内流水系少数河段发生改道、断流,入湖河流河口段发生延伸、退缩等变化。青藏高原多数天然湖泊变化较大,主要是部分湖泊面积缩小或扩大;少数湖泊解体或归并;有的已干涸的湖泊又重新汇水,有的湖泊则接近干涸。导致河流、湖泊演变的主要影响因素有气温变化、降水变化及冰川变化、气候雪线变化等。
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| 关 键 词： | 遥感调查 近25年来 河流、湖泊变迁 青藏高原 |
| 文章编号： | 1671-2552（2007）01-0022-09 |
| 收稿时间： | 2005-08-22 |
| 修稿时间： | 2006-04-27 |
Changes of rivers and lakes on the Qinghai-Tibet Plateau in the past 25 years and their influence factors |
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| ZHU Da-gang,MENG Xian-gang,ZHENG Da-xing,QIAO Zi-jiang,SHAO Zhao-gang,YANG Chao-bin,HAN Jian-en,YU Ji,MENG Qing-wei,L Rong-ping . Institute of Geomechanics,Chinese Academy of Geological Sciences,Beijing,Chin,. Land and Resources.Changes of rivers and lakes on the Qinghai-Tibet Plateau in the past 25 years and their influence factors[J].Geologcal Bulletin OF China,2007,26(1):22-30. |
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| Authors: | ZHU Da-gang MENG Xian-gang ZHENG Da-xing QIAO Zi-jiang SHAO Zhao-gang YANG Chao-bin HAN Jian-en YU Ji MENG Qing-wei L Rong-ping Institute of Geomechanics Chinese Academy of Geological Sciences Beijing Chin Land and Resources |
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| Abstract: | The present status and changes of distribution of rivers and lakes on the Qinghai-Tibet Plateau in the past 25 years have been analyzed according to the interpretation of the MSS remote sensing images in the middle 1970s and the ETM images at the end of the 1990s. Study indicates that: in general there is no appreciable change of rivers on the Qinghai-Tibet Plateau; a few river stretches of exterior drainages in some areas fluctuate slightly and a few river stretches of interior drainages are diverted or run dry; the river-mouth stretches where rivers inflow into lake show extensional and recessional changes. Most natural lakes on the plateau change significantly, mainly manifested by the following aspects: some lakes are reduced or expanded in area, some lakes are disintegrated or merged, water are again collected in some dried-up, and some lakes are nearly dried-up. The main influence factors leading to the changes of rivers and lakes include air temperature change, precipitation change, glacier change and climatic snow line change. |
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| Keywords: | remote sensing investigation in the past 25 years changes of rivers and lakes Qinghai-Tibet Plateau |
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