摘要
我国洪水灾害发生频繁,造成损失巨大,对灾情进行统计分析具有重大社会经济意义。根据全国63年洪灾损失数据,利用Mann-Kendall趋势检验方法和回归分析等方法,所得灾情时间分布的变化规律表明,洪灾造成的人口死亡和房屋倒塌呈下降趋势,受灾面积、成灾面积、直接经济损失等各指标呈明显的上升趋势。
Flood disasters with huge damages occur frequently in China. Thus analyze the historical floods. According to the historical flood loss data from flood losses are investigated with the Mann-Kendall trend test method. While a ber of casualties and collapsed houses, other indexes such as the flood affected ic losses are clearly increasing. , it is of great significance to statistically 1950 to 2012, the temporal trend of the decreasing trend is observed in the num- areas, disaster areas, and direct econom-ic losses are clearly increasing.
出处
《水电与新能源》
2017年第8期44-47,共4页
Hydropower and New Energy
关键词
洪灾
趋势检验
指标
时间分布
flood disaster
trend test
index
temporal distribution
