北京师范大学学报（自然科学版）2018，Vol.54Issue(2)：261-268,8.DOI:10.16360/j.cnki.jbnuns.2018.02.018
基于标准化径流指数的水文干旱特征分析:以塔里木河为例
Analysis on hydrological drought characteristics based on standardized runoff index: a case study in the Tarim River Basin
摘要
Abstract
Monthly runoff and precipitation in the headwaters of the Tarim River were analyzed from standardized runoff index and standardized precipitation index. Applicability of drought index and related changing properties of droughts were investigated using historical observations and run theories. SPI and SRI on a 3-month time scale reflect well the changing properties of droughts within the Tarim River Basin. Correlation between SPI3 and SRI3 is more significant in the Hotan and Yerqiang River Basins than in other river basins Occurrence frequency of droughts in Hotan and Yerqiang River Basins is larger than in Arkasu and Kaidu River Basins. However, the duration of droughts in Hotan and Yerqiang River Basins is shorter than in Arkasu and Kaidu River Basins. The number of light droughts in headwater regions of Tarim River Basin after1987 is smaller than that before 1987,due to increased temperature and precipitation and massive construction of hydraulic facilities after 1987. In addition, substantially increase of crop lands after 1987 is a major contribution factor behind lengthening drought duration and intensified droughts compared to before 1987. This study sheds new light on the understanding of drought changes in a warming climate in arid river basins in China and also in similar river basins in other regions of the globe.关键词
标准化径流指数/标准化降水指数/干旱特征/塔里木河Key words
standardized runoff index/standardized precipitation index/drought characteristics/Tarim River Basin分类
天文与地球科学引用本文复制引用
孙鹏,孙玉燕,姚蕊,张强,温庆志..基于标准化径流指数的水文干旱特征分析:以塔里木河为例[J].北京师范大学学报（自然科学版）,2018,54(2):261-268,8.基金项目
国家自然科学基金资助项目(41601023,41771536) （41601023,41771536）
国家杰出青年科学基金资助项目(51425903) （51425903）
国家自然科学基金委创新群体资助项目(41621061) （41621061）
地表过程与资源生态国家重点实验室开放基金资助项目(2017-KF-04) （2017-KF-04）
中国水利水电科学研究院流域水循环模拟与调控国家重点实验室开放基金(IWHR-SKL-201720) （IWHR-SKL-201720）
环境演变与自然灾害教育部重点实验室开放基金联合资助项目 （）
