西北水电Issue(5)：5-9,5.DOI:10.3969/j.issn.1006-2610.2016.05.002
青衣江流域水文气象因子变化研究
Study on Variation of Factors of hydrological Meteorology in Qingyi River Catchment
摘要
Abstract
In accordance with data of hydrological meteorology from Leshan and Jiajiang gauges (1954-2011) at Qingyi River catchment, Mann-Kendal method, periodic variance extrapolation method and wavelet analysis method are applied respectively to analyze sensitivity of the variation trend, period and runoff of the hydrological meteorological series to rainfall and temperature. The study presents that the annual rainfall, runoff and rainfall-evaporation difference all are with obvious decrease trend but the temperature series is with obvious rise trend. The short period of rainfall, runoff and temperature within 7a is available. Through calculation of elastic coefficient, the sensitivity of runoff to rainfall and temperature is analyzed. The calculation proves that runoff is sensitive to temperature variation, the sensitivity increases with temperature and the runoff trends to decrease.关键词
水文气象/趋势/周期/敏感性/青衣江流域Key words
hydrological meteorology/trend/period/sensitivity/Qingyi River catchment分类
天文与地球科学引用本文复制引用
奚圆圆,黄晓荣,李晶晶,杨鹏鹏,柴雪蕊..青衣江流域水文气象因子变化研究[J].西北水电,2016,(5):5-9,5.基金项目
国家重点基础研究发展计划(2015CB452701),国家自然科学基金项目(51579161) （2015CB452701）
