干旱地区农业研究2013，Vol.31Issue(3)：252-259,8.
近50年开都河流域下游降水和气温变化特征分析
Variation features of precipitation and air temperature in lower reaches of Kaidu River Basin of Xinjiang during recent 50 years
摘要
Abstract
Through the data of air temperature and precipitation from 1960 to 2009 at the three stations of Yanqi,Hejing,and Heshuo County,and using methods of linear fitting and Mann-Kendall test,seasonal and annual changes of air temperature and precipitation in lower reaches of Kaidu River Basin were characterized in this study.The results indicated that:(1) Annual average temperature of these three counties showed an escalating trend.The linear fitting growth rates of these three counties are 0.366 ℃· 10a-1,0.256 ℃· 10a-1 and 0.033 ℃· 10a-1.(2) Mean maximum temperature and the mean minimum temperature of Yanqi and Hejing County showed an ascending trend,while monthly mean minimum temperature in Heshuo county showed a decreasing trend.As for as seasonal and annual temperature alternations are concerned,seasonal temperature of all these three counties showed an increasing trend.Temperature increase in winter is significant.The inter-annual alternation extent of fall average temperature is at same range of inter-annual alternation of annual average temperature.(3) Annual precipitation anomalies of three counties appeared down-up-down trend.(4) Lapse rate was abnormal in three counties,and precipitation rate was abnormal in Yanqi county.Abrupt atmospheric temperature change occurred frequently and all of them ocurred in the 1990s.关键词
降水/气温/变化特征/开都河流域下游Key words
precipitation/ air temperature/ change characteristics/ the lower reaches of Kaidu River Basin分类
农业科技引用本文复制引用
李新国,阿斯耶姆·图尔迪,刘彬,海米提·依米提..近50年开都河流域下游降水和气温变化特征分析[J].干旱地区农业研究,2013,31(3):252-259,8.基金项目
国家自然科学基金项目(41061025,U1138302) （41061025,U1138302）
新疆维吾尔自治区高校科研计划重点项目(XJEDU2011I39) （XJEDU2011I39）
