安徽农业科学2011，Vol.39Issue(31)：19405-19409,5.
青海湖流域蒸发皿蒸发量及其影响因素的变化特征
Variation Characteristics of Pan Evaporation and Its Influence Factors in Qinghai Lake Basin
摘要
Abstract
[Objective] The research aimed to study the variation characteristics of pan evaporation and its influence factors in Qinghai Lake basin during 1961 -2007. [Method] By using the climate tendency rate method, the variation characteristics of small pan evaporation (20 cm) and its influence factors in Qinghai Lake basin during 1961 -2007 were analyzed. [Result] In recent 47 years, the pan evaporation in Qinghai Lake basin presented the decreasing trend, and the tendency rate was -47.75 mm/10a. Except in autumn, the pan evaporations in other seasons decreased at 7. 33 - 19.57 mm/10a rate. Spring decreasing range was the maximum, and winter decreasing range was the minimum. For the space characteristics of variation trend, except in Cangcha station, the annual pan evaporations in other stations of Qinghai Lake basin all presented the decreasing trend, and the decreasing range was during 32.36 -75.63 mm/10a. The decreasing range of pan evaporation decreased as the longitude increasing. The sunshine hours which affected the pan evaporation presented the significant declining trend, . And the rainfall presented the significant increasing trend. The average temperature significantly rose. The rising rate of average minimum temperature was bigger than that of average maximum temperature, and the diurnal temperature decreased, which also had the influence on the e-vaporation. [ Conclusion] The research had the important significances for better understanding the response of Qinghai Lake basin to the climate warming and the water resource management in the zone.关键词
青海湖流域/蒸发皿蒸发量/影响因素/变化特征Key words
Qinghai Lake basin/ Pan evaporation/ Influence factor/ Variation characteristic分类
资源环境引用本文复制引用
郝学宁,李岳坦,李滨勇..青海湖流域蒸发皿蒸发量及其影响因素的变化特征[J].安徽农业科学,2011,39(31):19405-19409,5.基金项目
“十一五”国家科技支撑计划项目(2007BAC30B02) （2007BAC30B02）
国家973重点基础发展研究项目(2004CB720207) （2004CB720207）
国家自然科学基金项目(NSFC40599423). （NSFC40599423）
