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Flood Response to Changes of Flood Disaster Formative Environment in the Pearl River Delta
Author(s): 
Pages: 57-60
Year: Issue:  5
Journal: JOURNAL OF CHINA HYDROLOGY

Keyword:  气候变化下垫面变化人类活动洪水响应珠江三角洲;
Abstract: 通过分析珠江三角洲最近几十年的气候、下垫面及人类活动资料,揭示了三角洲洪水孕灾环境的深刻变化.主要表现为三角洲气温明显上升,降水变率增大,河系简化,河床普遍下切、变窄,滩涂面积减少,口门延伸,地表不透水面积增大等.结合最近几次大洪水的水文情势,综合分析了三角洲洪水对孕灾环境变化的复合响应.
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