水土保持研究2017，Vol.24Issue(5)：247-251,258,6.
喀什地区1957-2013年潜在蒸散量变化及其影响因子
Dynamic Change of Potential Evapotranspiration and Its Influence Factors in Kashi Area During 1957-2013
摘要
Abstract
Based on maximum temperature,minimum temperature,monthly mean temperature,relative humidity,wind speed,sunshine duration and rainfall data collected from four meteorological stations during 1957-2013 in Kashi area,we used Penman-Monteith model,regression analysis,accumulative anomaly and Mann-Kendall nonlinear mutation test method to analyze annual potential evapotranspiration dynamic change and its influence factor of time series.The results show that:(1) in the past 57 years,the potential evapotranspiration in Kashi and Bachu showed the decreasing trend and its tendency rates were-7.53 mm/decade,-7.47 mm/decade,potential evapotranspiration of Tashikuergan and Shache increased with the tendency rates of 8.27 mm/decade and 6.25 mm/decade;(2) during the four seasons,the dynamic change tendency rate was higher in summer than spring and autumn,and lowest occurred in winter;(3) there was a significant difference among the potential evapotranspiration mutation points in Kashi area;the annual potential evapotranspiration mutation point of Kashi occurred in 1981,1962 for Bachu,1974 and 1983 for Tashikuergan,annual potential evapotranspiration mutation points of Shache occurred in 1961,1965,1968 and 1978;(4) the wind speed and sunshine hours have the effect on the annual evapotranspiration in Kashi area.关键词
潜在蒸散量/Penman-Monteith模型/影响因子/喀什地区Key words
potential evapotranspiration/Penman-Monteith model/impact factor/Kashi area分类
农业科技引用本文复制引用
凯丽比努尔·克热木,海米提·依米提,麦麦提吐尔逊·艾则孜..喀什地区1957-2013年潜在蒸散量变化及其影响因子[J].水土保持研究,2017,24(5):247-251,258,6.基金项目
国家自然科学基金重点项目—新疆联合基金“新疆博斯腾湖环境演变及对气候变化的响应”(U1138302) （U1138302）
