灾害学2012，Vol.27Issue(3)：12-18,7.
珠江流域干旱事件的多变量区域分析及区域分布特征
Regionalization and Changing Properties of Drought Events along the Pearl River Basin
摘要
Abstract
Information on regional drought characteristics provides critical information for short and long-term water resource management. The regional drought characteristics for the Pearl River Basin are analyzed in this paper and severity-area-frequency curves are constructed. The traditional regional analysis all is single variable. But hydrological events often have multiple attributes. So we select Chebana's (2007) multivariate L-moments homogeneity test to analyze the Pearl River Basin. Result indicates that the Pearl River Basin can be categorized into four homogeneous regions. And severity-area-frequency analysis for the homogeneous region shows that when there is a severe drought, it usually occurs over the whole Pearl River Basin. So it is more stressful for the water resource management in the Pearl River Basin. Meanwhile, the Pearl River delta is at a higher risk of drought than that of other regions. As the Pearl River delta is one of the most developed regions in China. Dense cities, a large population and high risk of drought of the Pearl River Delta region will no doubt have a significant impact on the development of the region and attract more attention.关键词
区域干旱特征/多变量区域分析/珠江流域/气象干旱Key words
characteristics of regional drought/multivariate regional frequency analysis/the Pearl River basin/meteorological drought分类
天文与地球科学引用本文复制引用
肖名忠,张强,陈晓宏..珠江流域干旱事件的多变量区域分析及区域分布特征[J].灾害学,2012,27(3):12-18,7.基金项目
国家自然科学基金项目(41071020 （）
50839005) （）
新世纪优秀人才支持计划 （）
广东省科技厅对外合作项目(2010B050800001) （2010B050800001）
中山大学理工科青年教师重点培育计划项目(2009-37000-1132381) （2009-37000-1132381）
