西南干旱特征及其成因研究进展

在全球变暖背景下,中国极端天气气候事件频发.近年来,发生在中国西南的严重干旱事件给当地造成了重大的经济损失和严重的社会影响,引起政府部门和科学界的高度重视.因此,总结西南干旱的观测事实和规律,探讨干旱成因,为西南干旱的预测预警提供依据,是一项具有现实意义也极具理论价值的研究课题.文章根据近年来有关西南干旱的研究进展,从影响干旱的几个主要方面着手,总结西南干旱的最新研究成果,并分析研究中尚存在的不足,以期对今后的工作有所帮助.

Advances in characteristics and causes of drought research in southwest China

As the consequence of global warming,China has been affected by extreme weather events more frequently.In recent years,the severe drought events have caused significant economic losses and serious social impact in southwest China,which attracted great attention from the government departments and the scientific community.This research subject is of significant importance and great theoretical value as its findings will reveal the trends and main causes of drought in southwest China,and will provide basis for predicting and establishing early warning system.This paper summarizes the research advances of drought in southwest China,analyzes the characteristics and possible causes of drought,points out the remaining problems with the purpose to provide reference for future research work.