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冰川冻土 ›› 2014, Vol. 36 ›› Issue (3): 678-684.doi: 10.7522/j.issn.1000-0240.2014.0081

• 寒旱区水文水资源 • 上一篇    下一篇

叶尔羌河上游不同流域夏季气候和径流变化研究

陈昱凝1,2, 胡林金3, 颜伟1,2, 张明煊3, 刘景时1, 德吉1,2   

  1. 1. 中国科学院 青藏高原研究所, 北京 100101;
    2. 中国科学院大学, 北京 100049;
    3. 新疆喀什水文水资源勘测局, 新疆 喀什 844000
  • 收稿日期:2013-11-07 修回日期:2014-02-16 发布日期:2014-07-16
  • 作者简介:陈昱凝(1989-),女,山东临沂人,2010年毕业于南京信息工程大学,现为硕士研究生,主要从事冰川水文水资源研究.E-mail:cyn@itpcas.ac.cn
  • 基金资助:
    国家重点基础研究发展计划(973计划)项目(2007CB411503);中国科学院重大方向项目(KZCX2-YW-310);科技部攻关项目(2006FY110200)资助

Study of the changes in summer climate and runoff in two upper streams of the Yarkant River

CHEN Yuning1,2, HU Linjin3, YAN Wei1,2, ZHANG Mingxuan3, LIU Jingshi1, Deji1,2   

  1. 1. Institute of Tibetan Plateau Research, Chinese Academy of Science, Beijing 100101, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Kashgar Hydrology and Water Resources Reconnaissance Bureau, Kashgar 844000, Xinjiang, China
  • Received:2013-11-07 Revised:2014-02-16 Published:2014-07-16
  • Contact: 刘景时,E-mail:jsliu@itpcas.ac.cn E-mail:jsliu@itpcas.ac.cn

摘要: 叶尔羌河是以冰雪补给为主的河流,径流的变化主要受气温和降水的影响,其中, 气温起主导作用. 基于1972-2011年近40 a的气温降水和径流的实测资料,分析叶尔羌河上游不同流域地区夏季气温、降水、蒸发以及径流的变化特征及相关性. 结果表明:库鲁克栏杆站夏季降水显著增加,蒸发减少,其余要素没有变化趋势;后20 a(1992-2011年)较之前20 a(1972-1991年)气温、降水和径流的变化分别为-0.6℃、40%、4%,径流的增加是春季融雪增多、降水增大、蒸发减少和溃决洪水补充的结果. 塔什库尔干站夏季各要素均没有变化趋势,后20 a较之前20 a气温、降水和径流的变化分别为0.4℃、27%、20%,径流的增加主要是由气温增加引起的,降水的增加补充一部分径流.

关键词: 径流深, 气候, Mann-Kendall趋势检验, 线性回归, 叶尔羌河上游

Abstract: The water supply to the Yarkant River is mainly from snow and ice meltwater, which is controlled mainly by air temperature and precipitation, dominantly the air temperature. Based on the measured monthly data of air temperature, precipitation and runoff from 1972 to 2011, the changing trends of climate and meltwater and the correlation between them in two upstream basins of the Yarkant River were analyzed. It is found that summer precipitation increased and evaporation decreased, but other factors were stationary at the Langan Station; as compared with those in the first 20 years (1972-1991), air temperature, precipitation and runoff in the second 20 years (1992-2011) decreased 0.6℃, increased 40% and 4%, respectively, at Langan Station. The increase of runoff was caused by increasing air temperature in spring, which led to increasing snowmelt water and decreasing evaporation, along with GLOFs frequently occurring in summer. Temperature, precipitation, evaporation and runoff at Taxkorgan Station had no distinct variation in summer. As compared with those in the first 20 years, air temperature, precipitation and runoff in the second 20 years increased 0.4℃, 27% and 20%, respectively.

Key words: runoff depth, climate, Mann-Kendall trend test, linear regression analysis, the upper reaches of the Yarkant River

中图分类号: 

  • P33