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冰川冻土 ›› 2019, Vol. 41 ›› Issue (2): 268-274.doi: 10.7522/j.issn.1000-0240.2019.0312

• 冰冻圈与全球变化 • 上一篇    下一篇

气候变化背景下玉龙雪山漾弓江流域径流变化及其影响因素分析

方金鑫1, 蒲焘2, 史晓宜3, 王世金2, 牛贺文2   

  1. 1. 云南省水文水资源局 丽江分局, 云南 丽江 674100;
    2. 中国科学院 西北生态环境资源研究院 冰冻圈科学国家重点实验室, 甘肃 兰州 730000;
    3. 兰州大学 资源环境学院, 甘肃 兰州 730000
  • 收稿日期:2018-06-04 修回日期:2018-12-14 出版日期:2019-04-25 发布日期:2019-05-18
  • 通讯作者: 蒲焘,E-mail:putao@lzb.ac.cn. E-mail:putao@lzb.ac.cn
  • 作者简介:方金鑫(1970-),男,云南永胜县人,工程师,2007年于河海大学获学士学位,从事水文水资源研究.E-mail:1150363265@qq.com
  • 基金资助:
    中国科学院A类战略性先导科技专项(XDA200201023);国家自然科学基金项目(91647101);丽江玉龙雪山省级旅游开发区管理委员会委托项目资助

Runoff variation and its influence factors in the Yanggong River basin of Mt.Yulong region due to climate change

FANG Jinxin1, PU Tao2, SHI Xiaoyi3, WANG Shijin2, NIU Hewen2   

  1. 1. Yunnan Provincial Hydrology Water Resources Bureau, Lijiang 674100, Yunnan, China;
    2. State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
    3. College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
  • Received:2018-06-04 Revised:2018-12-14 Online:2019-04-25 Published:2019-05-18

摘要: 利用1979-2016年金沙江支流漾弓江流域木家桥水文站流量资料和丽江市气象资料,揭示了漾弓江流域径流变化特征及其主要影响因素。研究结果表明:漾弓江流域年径流量呈先增加后减小趋势。在年代际时间尺度, 20世纪80年代、90年代以及2000-2009年,径流量呈现增加趋势,而2010-2016年径流量呈减小趋势,与2000-2009年相比, 2010-2016年径流量减少了42%(减少径流量为0.88×108 m3)。气温和降水量对径流的影响均较为显著,其中,降水量对径流的影响主要体现在雨季,而气温对径流的影响主要体现在消融期。气温升高导致冰川累积负物质平衡,进而引起冰雪融水变化,漾弓江流域2000-2009年径流变化的主要原因。

关键词: 径流, 气候变化, 漾弓江, 玉龙雪山

Abstract: Based on the runoff data at Mujiaqiao hydrological station of Yanggong River basin and the meteorological data of Lijiang city during the period 1979-2016, this study analyzed the variation of the runoff and its main influencing factors. The results showed that the discharge of the Yanggong River basin exhibited an increasing trend and then decreasing trend during the study period. Though the discharge increased during 1980s, 1990s and 2000-2009, the discharge decreased during 2010-2016. The discharge during 2010-2016 decreased by 42% (0.88×108 m3) compared with the average discharge of 2000-2009. Moreover, the correlation analysis showed that precipitation and temperature were the main control factors for the Yanggong River runoff. The influence of precipitation on discharge mainly occurred in rainy season whereas the influence of temperature on discharge mainly occurred in melting season. The variation of snow and ice meltwater caused by the rising temperature resulted in the different change of runoff and precipitation.

Key words: runoff, climate change, Yanggong River basin, Mt.Yulong

中图分类号: 

  • P333.1