| 雅鲁藏布江流域1961-2005年气候变化趋势 |
| |
| 引用本文： | 游庆龙,康世昌,吴艳红,闫宇平.雅鲁藏布江流域1961-2005年气候变化趋势[J].地理学报(英文版),2007,17(4):409-420. |
| |
| 作者姓名： | 游庆龙 康世昌 吴艳红 闫宇平 |
| |
| 作者单位： | Institute of Tibetan Plateau Research CAS，Institute of Tibetan Plateau Research CAS，Institute of Geographic Sciences and Natural Resources Research CAS，National Climate Center，Beijing 100085 China Graduate University of Chinese Academy of Sciences Beijing 100049 China，Beijing 100085 China State Key Laboratory of Cryospheric Science Chinese Academy of Sciences Lanzhou 730000 China，Beijing 100101 China，Beijing 100081 China |
| |
| 基金项目： | National Natural Science Foundation of China, No.40401054，No.40121101，CAS Hundred Talents Program，President Foundation of the Chinese Academy of Sciences，Knowledge Innovation Project of CAS, No.KZCX3-SW-339，National Basic Research Program of China, No.2005CB422004 |
| |
| 摘 要： | The Yarlung Zangbo River (YR) is the highest great river in the world, and its basin is one of the centers of human economic activity in Tibet. Using 10 meteorological stations over the YR basin in 1961–2005, the spatial and temporal characteristics of temperature and precipitation as well as potential evapotranspiration are analyzed. The results are as follows. (1) The annual and four seasonal mean air temperature shows statistically significant increasing trend, the tendency is more significant in winter and fall. The warming in Lhasa river basin is most significant. (2) The precipitation is decreasing from the 1960s to the 1980s and increasing since the 1980s. From 1961 to 2005, the annual and four seasonal mean precipitation is increasing but not statistically significant, especially in fall and spring. The increasing precipitation rates are more pronounced in Niyangqu and Palong Zangbo river basins, the closer to the upper YR is, the less precipitation increasing rate would be. (3) The annual and four seasonal mean potential evapotranspiration has decreased, especially after the 1980s, and most of it happens in winter and spring. The decreasing trend is most significant in the middle YR and Nianchu river basin. (4) Compared with the Mt. Qomolangma region, Tibetan Plateau, China and global average, the magnitudes of warming trend over the YR basin since the 1970s exceed those areas in the same period, and compared with the Tibetan Plateau, the magnitudes of precipitation increasing and potential evapotranspiration decreasing are larger, suggesting that the YR basin is one of the most sensitive areas to global warming.
|
| 关 键 词： | 雅鲁藏布江流域 1961—2005年 气候变化趋势 温度 |
| 修稿时间： | 2007-06-15 |
Climate change over the Yarlung Zangbo River Basin during 1961–2005 |
| |
| You?Qinglong,Kang?Shichang,Wu?Yanhong,Yan?Yuping.Climate change over the Yarlung Zangbo River Basin during 1961–2005[J].Journal of Geographical Sciences,2007,17(4):409-420. |
| |
| Authors: | You Qinglong Kang Shichang Wu Yanhong Yan Yuping |
| |
| Institution: | 1.Institute of Tibetan Plateau Research,CAS,Beijing,China;2.Graduate University of Chinese Academy of Sciences,Beijing,China;3.State Key Laboratory of Cryospheric Science,Chinese Academy of Sciences,Lanzhou,China;4.Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing,China;5.National Climate Center,Beijing,China |
| |
| Abstract: | The Yarlung Zangbo River (YR) is the highest great river in the world, and its basin is one of the centers of human economic activity in Tibet. Using 10 meteorological stations over the YR basin in 1961-2005, the spatial and temporal characteristics of temperature and precipitation as well as potential evapotranspiration are analyzed. The results are as follows. (1) The annual and four seasonal mean air temperature shows statistically significant increasing trend, the tendency is more significant in winter and fall. The warming in Lhasa river basin is most significant. (2) The precipitation is decreasing from the 1960s to the 1980s and increasing since the 1980s. From 1961 to 2005, the annual and four seasonal mean precipitation is increasing but not statistically significant, especially in fall and spring. The increasing precipitation rates are more pronounced in Niyangqu and Palong Zangbo river basins, the closer to the upper YR is, the less precipitation increasing rate would be. (3) The annual and four seasonal mean potential evapotranspiration has decreased, especially after the 1980s, and most of it happens in winter and spring. The decreasing trend is most significant in the middle YR and Nianchu river basin. (4) Compared with the Mt. Qomolangma region, Tibetan Plateau, China and global average, the magnitudes of warming trend over the YR basin since the 1970s exceed those areas in the same period, and compared with the Tibetan Plateau, the magnitudes of precipitation increasing and potential evapotranspiration decreasing are larger, suggesting that the YR basin is one of the most sensitive areas to global warming. |
| |
| Keywords: | Yarlung Zangbo river basin climate change sensitivity |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
| 点击此处可从《地理学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《地理学报(英文版)》下载免费的PDF全文 |
|
