Construction of the Three Gorges Dam across the Yangtze River will substantially change the ecology of the Dongting Lake in southern China. In addition, the Central and Hunan Provinces’ governmental authorities have instigated a Return Land to Lake Program that will extend the Dongting Lake surface area from the current 2,681 km2 to 4,350 km2.The previous construction of embankments and the large silt deposits made by the Yangtze River and other connecting rivers have contributed to frequent disastrous flooding. As a consequence of the 2 water projects, >2 million persons and their domestic animals are being resettled. This article provides an overview of the historical background of these 2 large water management projects, the associated population movement, and their impact on future transmission and control of schistosomiasis in the Dongting Lake area. The dam will likely substantially extend the range of the snail habitats and increase schistosome transmission and schistosomiasis cases.
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机译:横跨长江的三峡大坝的建设将大大改变中国南部洞庭湖的生态。此外,中部和湖南省政府当局已启动了“退田还湖”计划,该计划将把洞庭湖的表面积从目前的2,681 km 2 sup>扩大到4,350 km 2 sup >。先前的堤防建设以及长江及其他连接河流造成的大量淤泥沉积,导致了频繁的灾难性洪灾。由于这两个水项目,超过200万人及其家畜正在重新安置。本文概述了这两个大型水管理项目的历史背景,相关的人口流动及其对洞庭湖地区血吸虫病未来传播和控制的影响。该水坝可能会大大扩大蜗牛栖息地的范围,并增加血吸虫病的传播和血吸虫病病例。
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