自然资源学报 ›› 2012, Vol. 27 ›› Issue (2): 302-310.doi: 10.11849/zrzyxb.2012.02.013

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西藏中部巴木错湖泊面积变化及其原因分析

巴桑赤烈1,2,3, 刘景时1, 牛竟飞1,2, 达瓦顿珠3, 次边4   

  1. 1. 中国科学院 青藏高原研究所,北京 100085;
    2. 中国科学院 研究生院,北京 100049;
    3. 西藏自治区 水文水资源勘测局,拉萨 850000;
    4. 西藏旁多水利枢纽工程管理局,拉萨 850000
  • 收稿日期:2011-04-02 修回日期:2011-10-28 出版日期:2012-02-20 发布日期:2012-02-20
  • 作者简介:巴桑赤烈(1976- ),男,西藏日喀则人,工程师,硕士,主要从事水文水资源研究工作。
  • 基金资助:

    国家基础研究规划973项目(2007CB411503)。

Area Variation and Its Causes of Bamu Co Lake in the Central Tibet

Bhasang Trilie1,2,3, LIU Jing-shi1, NIU Jing-fei1,2, Dhawa Tontrop3, Ci Bian4   

  1. 1. Institute of Tibetan Plateau Research, CAS, Beijing 100085,China;
    2. Graduate University of Chinese Academy of Science,Beijing 100085,China;
    3. Bureau of Tibetan Hydrology and Water Resources,Lhasa 850000,China;
    4. Bureau of Tibetan Pang Duo Hydro-junction Management,Lhasa 850000,China
  • Received:2011-04-02 Revised:2011-10-28 Online:2012-02-20 Published:2012-02-20

摘要: 受气候变化影响,西藏中部内陆湖泊在最近10 a来出现了水位上涨、湖面扩大等情况。采用遥感技术及统计学方法分析了西藏中部巴木错湖泊面积年内、年际变化及其原因。结果表明:①湖泊周边班戈站的年降水量、年平均气温、年平均地温以及年平均相对湿度等呈现增加趋势,年平均风速显现下降趋势;②2009年的面积在2月、5月和8月出现了三个"峰值",主要与湖面封冻、气温升高及降水增加等有关,年际变化呈逐步增加趋势;③经线性相关、多元回归等分析发现,年内变化受各月面降水量AP、蒸发量E和气温T的影响,合计贡献率为90.0%,排序为AP>E>T;年际变化受年平均风速SWS、7月降水量P7、平均地温ST和气温T的影响,合计贡献率为65.2%,排序为SWS>P7>ST>T

关键词: 自然地理学, 面积变化, 相关分析, 西藏, 巴木错

Abstract: Some inland lakes located in eastern Qiang-tang Plateau of Tibet were enlarged in the last decade due to the climate change. The paper mainly focus on analyzing the Bamu Co lake area monthly and yearly variation and its causes based on the remote sensing technique and correlation analysis. The major results could be summarized as follows: 1) The gauged annual precipitation,air temperature,soil temperature and relative humidity of Bange meteorological station were increased,while the wind speed was gradually decreased; 2) There are three maximum values of lake area in February,May and August of 2009,respectively because of fully freeze lake,rising air temperature and the monsoon precipitation as well. 3) According to statistical analysis,the monthly variation of the lake area was controlled by three variables,and they totally contribute 90.0% of water supply which is in annual precipitation>evaporation>temperature, and the annual variation was influenced by four variables,contribute 65.2% and in wind speed of Shenzha Station>precipitation in July>soil temperature>temperature.

Key words: physical geography, area variation, correlation analysis, Tibet, Bamu Co Lake

中图分类号: 

  • P343.3