气候变化研究进展2013，Vol.9Issue(1)：35-42,8.DOI:10.3969/j.issn.1673-1719.2013.01.006
湘江流域蒸发皿蒸发量的变化趋势及原因分析
Analysis of Pan Evaporation Trend and Its Influence Factors in Xiangjiang River Basin
摘要
Abstract
With the data of observed monthly evaporation at 44 meteorological stations in Xiangjiang River basin from 1960 to 2006. Changes in pan evaporation and their causes are analyzed. The main results are as follows: pan evaporation decreased by 21.29 mm per 10 year (90% confidence level) in Xiangjiang River basin during the recent 47 years. Significant decrease of annual pan evaporation occurred at 75% of meteorological stations. As for the seasonal pan evaporation, especially in summer, it decreased by 15.58 mm per 10 year (99% confidence level). Spatially, the pan evaporation declined from the southwest to the northeast, the significant decrease of pan evaporation occurred in the downstream. The decrease of pan evaporation is mainly attributed to the decrease of vapor pressure deficit and the significant decrease of wind speed at most cf the meteorological stations in Xiangjiang River basin.关键词
蒸发皿蒸发量/变化趋势/原因分析/湘江流域Key words
pan evaporation/ trends/ analysis of cause/ Xiangjiang River basin引用本文复制引用
张婷婷,章新平,吴华武,申林,郭丽香..湘江流域蒸发皿蒸发量的变化趋势及原因分析[J].气候变化研究进展,2013,9(1):35-42,8.基金项目
国家自然科学基金项目(40871094,41171035) （40871094,41171035）
湖南省重点学科项目(2011001) （2011001）
中国科学院青藏高原环境变化与地表过程重点实验室开放基金项目(2011004) （2011004）
