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中国沙漠 ›› 2011, Vol. 31 ›› Issue (1): 254-260.

• 水文与水资源 • 上一篇    下一篇

天山南、北坡典型河流出山径流对气候变化响应的分析对比

蓝永超1, 钟英君2, 吴素芬3, 沈永平1, 王国亚1, 喇承芳4, 宋 洁4   

  1. (1.中国科学院 寒区旱区环境与工程研究所, 甘肃 兰州 730000;2.新疆水利水电学校,新疆 乌鲁木齐 830000;3新疆水文水资源局,新疆 乌鲁木齐 830000; 4.黄河水利委员会上游水文水资源局, 甘当 兰州 730030)
  • 收稿日期:2010-05-13 修回日期:2010-06-23 出版日期:2011-01-20 发布日期:2011-01-20

Response of Mountain Runoff to Climate Change in Representative Rivers Originated from the Tianshan Mountain

LAN Yong-chao1, ZHONG Ying-jun2, WU Su-fen3, SHEN Yong-ping1, WANG Guo-ya1, LA Cheng-fang4, SONG Jie4   

  1. (1.Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China; 2.Xinjiang Secondary Specialized School of Water Resources and Hydropower, Urumqi 830000, China; 3.Xinjiang Bureau of Hydrology and Water Resources, Urumqi 830000, China; 4.Hydrology and Water resources Bureau of the Upper Reaches of the yellow River, Water Conservancy Committee of the yellow river Basin, Lanzhou 730030, China)
  • Received:2010-05-13 Revised:2010-06-23 Online:2011-01-20 Published:2011-01-20

摘要: 基于有关水文、气象台站的降水、气温和径流观测资料,对天山南、北坡的代表性河流——开都河与乌鲁木齐河上游山区径流变化及其对气候变化的响应进行了分析。在此基础上建立山区径流对气候变化的响应模型,假定不同的气候情景组合,就两条河流出山径流对气候变化的敏感性进行分析对比。结果表明,近40余年,两条河流山区年降水量、平均气温及径流总体上均呈波动状上升态势。一方面径流与降水、气温的变化呈明显的正相关关系;另一方面山区径流对降水、气温变化的响应的程度存在着明显的区域性差异,即乌鲁木齐河出山径流对降水变化的响应程度明显强于开都河,而开都河出山径流对气温变化的敏感性要高于乌鲁木齐河。

关键词: 径流, 气候变化, 敏感性, 乌鲁木齐河, 开都河, 天山

Abstract: Change of runoff and climate in mountain watersheds of Kaidu river and Urumqi River originated respectively from the south slope and the north slope of the Tianshan Mountains was analyzed based on the past 50a observational data at relevant hydrological and weather stations, and the various climate scenes were assumed and the response models of mountain runoff to climate change were established to analyze sensitivity of runoff to climate change. The results are as follows. Variations of temperature, precipitation and runoff in the study area have been presenting an oscillating and rising trend as a whole since 1960s, and the rising range is quite obvious after 1990s. There is a markedly positive correlation between Mountain runoff and temperature, precipitation on the one hand, and there are also some regional differences in response degree of mountain runoff to precipitation and temperature on the other hand. The mountain runoff of Urumqi river basin is more sensitive to precipitation change than that of Kaidu river basin and the mountain runoff of Kaidu river basin is more sensitive to temperature change than that of Urumqi river basin.

Key words: runoff, climate change, sensitivity, Urumqi River, Kaidu River, Tianshan Mountains

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