长江九江河段张家洲的演变

江心洲滩从淤积到下侈和横向摆动，分汉河道一汉淤塞与江岸并接，另一汉发展而成主泓，继而新的洲滩出现，这是长江下游的历史演变。追述长江九江河段张家洲的演变史对认识近期变迁，对整治河道是有益的。

The evolution of the Zhang-Jia batture of JiUjiang reaches of the Yangtse River

The river island batture from sediment to move down; to vibrate toside; one of the river brancbes sedimentated and combined with riverbank,theother developed as main flow then the new batture appeared;These are the hist-oric evolution of lower reaches of the Yangtse River,Trace back to the historicevolution and the last term changes of the Zhang-Jia butture of Jiujiang reachesof the Yangtse River,will be helpful to river regulation.