水资源保护Issue(3)：19-24,6.DOI:10.3969/j.issn.1004-6933.2014.03.005
后三峡工程时代长江口水源地盐水入侵规律及其应对措施
Saltwater intrusion into water source zone in Yangtze Estuary in post-Three Gorges engineering era and countermeasures
摘要
Abstract
Based on the main impact factors and features of saltwater intrusion in the Yangtze Estuary , the variations of the annual and monthly average runoff at the Datong Hydrological Station on the Yangtze River since the beginning of operation of the Three Gorges Reservoir were analyzed .The characteristics of typical wet years , normal years , and dry years are shown in the lower reaches of the Yangtze River with significant seasonal variations.Meanwhile, the features of saltwater intrusion into the water source zone in the Yangtze Estuary in the era after the beginning of Three Gorges engineering were studied .The results show that , in dry seasons , the saltwater intrusion into the water source zone had a relatively close correlation with the daily runoff at the Datong Hydrological Station six days prior to the first day on which the intrusion occurred .The impact of saltwater intrusion can usually be seen from September to the following April , and especially in February , according to the Chinese lunar calendar .The chloride concentration peak showed a double hump-shaped distribution on the 8 th and the 22 nd of each lunar month .Some suggestions are given for reducing the impacts of saltwater intrusion in the Yangtze Estuary on the water supply safety in the water source zone of Shanghai City .These suggestions include promoting cooperation and sharing of information between river basin administrations and local departments , jointly building the controlling projects on the north branch of the Yangtze Estuary , and co-developing the water source zones ( reservoirs) in the Yangtze Estuary .关键词
后三峡工程时代/长江口水源地/盐水入侵/城市供水安全Key words
post-Three Gorges engineering era/water source zone in Yangtze Estuary/saltwater intrusion/urban water supply safety分类
天文与地球科学引用本文复制引用
陈祖军..后三峡工程时代长江口水源地盐水入侵规律及其应对措施[J].水资源保护,2014,(3):19-24,6.基金项目
上海市重大科研项目 （）
