安徽农业科学2011，Vol.39Issue(19)：11464-11466,3.
我国北方大面积干旱成因分析
Analysis on the Causes of the Widespresad Drought in North China
摘要
Abstract
Widespread and sustained drought takes place in the North china in winter of 2010-2011. the drought in some places is extremely severe. Data shows that the drought has still not been effectively relieved till now. According to relevant data, the temperature anomalies, obvious precipitation change and atmospheric cireulation during the drought are analyzed. As indicated by the resula, the drought disaster in 2010 - 2011 is co-caused mainly by the human factors and the natural factors of low temperature, less precipitation and atmospheric circulation anomaly, and the relation of temperature, preipitation and atmospheric circulation with La Nina is revealed, indieating that La Nina is the direct catuse of this drought.关键词
干旱/降水/大气环流/拉尼娜Key words
Drought/ Prcipitation/ Atmospheric cireulation/ La Nina分类
农业科技引用本文复制引用
迟鹏,张升堂..我国北方大面积干旱成因分析[J].安徽农业科学,2011,39(19):11464-11466,3.基金项目
国家自然科学基金项目(40971021). （40971021）
