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阳新、加鱼和蒲圻三县均位于长江边,系血吸虫病流行区。为了保护江堤,在险要堤段的迎水面都用石块护坡。全区江堤石块护坡长79290m,有螺面积762900m~2。我们于1984年4～5月进行了钉螺分布的抽样调查。 方法 根据石块护坡的高度、常年汛期洪水波及坡面的高低,分为三线,等距离设线、框调查。第一线为堤脚;第二线为护坡常年迎水面;第三线为护坡最高面。另调查草皮江堤段作比较。 结果 一、阳新、加鱼和蒲圻三县石块护坡钉螺分布情况 3个县共抽查石块护坡长度3700m,面
Yangxin, plus fish and Pu Huang three counties are located in the Yangtze River, the Department of schistosomiasis epidemic area. In order to protect the river embankment, in the embankment embankment welcome water with stone slope protection. The whole area of the river embankment stone slope length 79290m, a spiral area of 762900m ~ 2. We conducted a sample survey of snail distribution from April to May 1984. Methods According to the height of stone revetment, the flooding in the perennial flood season affected the level of the slope, divided into three lines and set the line at equal distance, and investigated the box. The first line for the embankment feet; the second line for the slope protection perennial water surface; the third line for the highest slope. Another survey turf dike section for comparison. Results 1. Distribution of snails on the slope protection in the three counties of Yangxin, Gansu and Puhuang Three stone counties were inspected in 3700m in length