安徽农业科学2012，Vol.40Issue(4)：2090-2092,3.
云南旱灾综合指数时间序列趋势分析
Analysis on Trend of Time Series of Drought Composite Index in Yunnan
摘要
Abstract
3 indexes data of economic losses of drought that include the area of drought disaster, the affection area of the drought, the grain loss due to the drought in Yunnan Province during 1950 -2009 were selected, the composite index of drought was calculated, thus constituted composite index sequence of drought in Yunnan Province, and used composite index to assess the degree, then used Mann-Kendall to analyze composite index time series trend of drought in Yunnan Province from 1950 to 2009. The results show that; during the recent 60 years, drought disasters usually happened, the loss due to drought was serious, the average 2.5 years would appear a major or above drought in Yunnan Province. From 1950 to 2009, composite index of drought was obviously rising, especially since the middle of 1980s, the damage of drought increased obviously, drought prevention and reduction were very grim in Yunnan Province.关键词
云南/旱灾损失/综合指数法/Mann-Kendall/时间序列Key words
Yunnan/Drought loss/Composite index/Mann-Kendall/Time series分类
农业科技引用本文复制引用
余航,王龙,田琳,张茂堂,杨蕊,夏昆..云南旱灾综合指数时间序列趋势分析[J].安徽农业科学,2012,40(4):2090-2092,3.基金项目
水利部公益性行业专项(201001044) （201001044）
