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为阐明三峡建坝后水位变化对长江安徽段滩地开发利用及其对血吸虫病流行的影响 ,对长江安徽段江湖洲滩血吸虫病流行区人文、滩貌结构与植被分布、滩地开发利用以及钉螺分布等进行现况调查 ,结合三峡大坝工程对长江安徽段水位变化影响进行综合分析。结果长江安徽段江湖洲滩 16 .2 8%的滩地面积被农业开发利用 ,7.88%的滩地面积被开发为水产养殖 ,有 10 %左右的滩地被翻耕植树 ,已被农业开发的江洲湖滩 ,主要农作物有水稻、棉花、油菜、小麦。三峡建坝后长江中下游秋季水位将有所下降 ,使滩地露滩时间提前。表明三峡工程将有利于滩地农作物的播种 ,使滩地可开发耕种的面积扩大而有利于消灭滩地钉螺。
In order to clarify the impact of water level changes on the development and utilization of beach land in Anhui section of the Yangtze River after the Three Gorges Dam construction and its impact on the prevalence of schistosomiasis, the paper analyzed the humanities, beach structure and vegetation distribution, development and utilization of beach land, And other current status survey, combined with the Three Gorges Dam project in Anhui section of the water level changes in a comprehensive analysis. As a result, 16.28% of the beach area in Anhui Province’s Jianghuzhou Beach was exploited and utilized by agriculture. 7.88% of the beach area was developed into aquaculture. About 10% of the beach land was tilled and planted, and the farmland developed by Jiangzhou Lake Beach The main crops are rice, cotton, rapeseed and wheat. After the construction of the Three Gorges, the autumn water level in the middle and lower reaches of the Yangtze River will decrease, leading to an early beach exposure time. It shows that the Three Gorges Project will be conducive to the sowing of beach and farmland so as to expand the area where the land can be developed and cultivated and help to eliminate snails on the beach.