冰川冻土 ›› 2018, Vol. 40 ›› Issue (3): 598-606.doi: 10.7522/j.issn.1000-0240.2018.0065

• 寒旱区水文水资源 • 上一篇    下一篇


王婷婷1,2,4, 冯起1,3, 李宗省1,3, 李建国1,3   

  1. 1. 中国科学院 西北生态环境资源研究院, 甘肃 兰州 730000;
    2. 兰州交通大学 经济管理学院, 甘肃 兰州 730070;
    3. 中国科学院 西北生态环境资源研究院 内陆河流域生态水文重点实验室, 甘肃 兰州 730000;
    4. 中国科学院大学, 北京 100049
  • 收稿日期:2017-06-09 修回日期:2017-12-16 出版日期:2018-06-25 发布日期:2018-07-16
  • 通讯作者: 冯起,
  • 作者简介:王婷婷(1980-),女,甘肃古浪人,2010年在兰州交通大学获硕士学位,现为中国科学院西北生态环境资源研究院在读博士研究生,从事生态经济研究
  • 基金资助:

Extreme climate research on Gulang River basin in eastern Qilian Mountains during 1960-2012

WANG Tingting1,2,4, FENG Qi1,3, LI Zongxing1,3, LI Jianguo1,3   

  1. 1. Northwest Institute of Eco-environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
    2. School of Economics & Management, Lanzhou Jiaotong University, Lanzhou 730070, China;
    3. Key Laboratory of Ecohydrology of Inland River Basin, Northwest Institute of Eco-environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
    4. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-06-09 Revised:2017-12-16 Online:2018-06-25 Published:2018-07-16

摘要: 全球变暖引发极端气候事件频发、加剧,是干旱区研究关注的热点科学和社会问题。通过分析祁连山东段古浪河流域1960-2012年日气温、降水数据,研究表明:古浪河流域升温显著,作物生长期、夏日高温日数和热持续日数均在频次和幅度上显著增加,显示出对全球变暖的良好响应。降水存在准3年和准8年的高频波动特征,强降水对年降水影响日趋显著,普通日降水强度则反映出区域差异性,持续干燥日数显示本区呈现湿润化。上述认识可为古浪河流域水资源研究及生态服务提供科技支撑。

关键词: 极端气候, 气温, 降水, 古浪河

Abstract: The increasing extreme climate events at the global scale are causing a series of scientific and societal issues under the background of global warming. The variations of daily temperature and precipitation of Gulang River basin in eastern Qilian Mountains showed that increasing frequency and amplitude of growing season length (GSL), summer days (SU25) and consecutive warm days (CWD) as well as prominent warming indicated the good response to global warming. The quasi-3-year and quasi-8-year periodicities of precipitation in whole basin were identified by wavelet analysis. Extreme wet day precipitation (R95P) is becoming more contribution for annual precipitation, but the simple daily intensity index (SDⅡ) presented regional diversity. The consecutive dry days (CDD) revealed that humidification is going prominent. This work provided the science and technology support to water source and ecological services in Gulang River basin.

Key words: extreme climate, temperature, precipitation, Gulang River


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