水资源保护2011，Vol.27Issue(1)：24-27,33,5.DOI:10.3969/j.issn.1004-6933.2011.01.006
长江流域1951-2000年蒸发皿蒸发量变化趋势
Pan evaporation trend in Yangtze River Basin from 1951 to 2000
宋萌勃 1陈吉琴 1张晓健 2张文杰2
作者信息
- 1. 长江工程职业技术学院,湖北,武汉,430212
- 2. 中南电力设计院,湖北,武汉,430071
- 折叠
摘要
Abstract
Based on daily meteorological data of 115 observation stations from 1951 to 2000 within the Yangtze River Basin, the correlation and trend of pan evaporation and its relation with meteorological factors in the past fifty years were analyzed by using linear trend estimate, moving average and correlation analysis method. The results demonstrated that the annual average pan evaporation presented a decrease trend in the past fifty years in the four reaches of Yangtze River Basin. The decrease tendency in the middle reach was more obvious and was weak in the other three reaches. The pan evaporation decrease was primarily resulted from increase of average vapour pressure and reduction of sunshine time.关键词
蒸发皿蒸发量/趋势分析/气象因子/长江流域分类
农业科学引用本文复制引用
宋萌勃,陈吉琴,张晓健,张文杰..长江流域1951-2000年蒸发皿蒸发量变化趋势[J].水资源保护,2011,27(1):24-27,33,5.
