干旱地区农业研究2017，Vol.35Issue(6)：284-293,10.DOI:10.7606/j.issn.1000-7601.2017.06.41
1961—2010年中国降水量变化分区及其区域特征
The division of precipitation change and its regional characteristics in China during 1961—2010
摘要
Abstract
In order to study the division of precipitation change and its regional characteristics in recent 50 years of China,using each ten days precipitation data from 598 meteorological stations during 1961—2010,the precipitation anomaly percentage of each station was calculated.Through the empirical orthogonal function and rotated empirical or-thogonal function,carried out the spatial analysis for the precipitation change and division of the precipitation change characteristics in recent 50 years of China,also using the linear trend analysis and 5 -years moving average analysis methods,the variation characteristics of precipitation in the whole region and each district were analyzed.The results in-dicated that:China can be divided into 12,11 and 11 change regions,respectively,according to the 1961—1990, 1971—2000 and 1981—2010.Synthesized the precipitaion change characteristics in three time periods,whole China can be divided into 11 regions,such as Jianghuai region,Central and Southern Northeast region,Northern part of China, Xinjiang region,Southern and South Eastern region,Huanghuai region,Eastern of Southwest region and West of South-ern regions,Northern part of the Northeast region,Midwest of South China,Qinghai-Tibet region,West of the South-west region.Through the analysis of the precipitaion change characteristics,the precipitation was tended to decrease in recent 50 years of China,but presented regional difference.The maximal precipitation decreasing trend was in Huanghuai region,and the climatic trend rate was -0.0183 mm·10 a-1.While the most obvious increase tendency of precipitation was occurred in Southern and south eastern region,the climatic trend rate was 23.2075 mm·10 a-1.关键词
降水距平百分率/旋转经验正交函数/降水量变化分区/线性趋势分析/5年滑动平均分析Key words
precipitation anomaly percentage/rotated empirical orthogonal function/the division of precipitation changes/linear trend analysis/5-years moving average analysis分类
天文与地球科学引用本文复制引用
王耸,高西宁,肖瑶,王琪,王宁..1961—2010年中国降水量变化分区及其区域特征[J].干旱地区农业研究,2017,35(6):284-293,10.基金项目
国家自然科学基金重点项目(41430528) （41430528）
