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目的掌握江滩地区滩情特点和钉螺分布规律，探讨江滩地区钉螺控制的措施和策略。方法通过查阅资料和现场勘测，对江苏沿江５市江滩逐块调查滩情、螺情，并进行江滩开发治理可行性论证。结果共调查江滩６０７块，滩块面积１６ ２４３．２０４ ３万ｍ~２，其中现有螺面积４ １４２.３９６ ３万ｍ~２，现有阳性钉螺面积 ６００． ８６３１万 ｍ~２；现有螺江滩水淹时间均在 ６个月内， ９０． ８８％现有螺滩块高程在３～９ｍ间；调查表明江苏血吸虫病流行区江滩具有“冬陆夏水”特征，江滩有螺面积的增加与江滩面积增长及钉螺扩散有关；江滩有螺原因主要为上年未灭螺、灭而未净和钉螺扩散。目前可开发的滩块占尚未开发江滩面积的５７．０７％，如全部开发则可消灭现有江滩钉螺面积的４７．１６％。结论 基本掌握了江苏江滩地区滩情、螺情特点，探讨了江滩开发治理的可行性，提出了结合农业水利，采取以消除钉螺孳生条件为目标的生态工程方法控制江滩钉螺的防治策略。
Objective To grasp the characteristics of beach seashore and distribution of Oncomelania snails in the river beach area and discuss the measures and tactics of snail control in the river beach area. Methods By referring to the data and on-site survey, we conducted a survey on the beach conditions and the snail conditions on the river banks in 5 cities along the Yangtze River in Jiangsu Province, and carried out the feasibility study on the river beach development and management. Results A total of 607 river banks were surveyed. The beach area was 16,243.204 million m 2, of which the existing spiral area was 4,142,396 30,000 m 2 and the existing positive snail area was 600. 86.31 million m 2; the existing flooding time of Lojiang Beach is within 6 months, 90. 88% of the existing Luodan block elevation of 3 ~ 9m; survey shows that endemic areas of Jiangsu schistosomiasis has “winter land and summer water” features, the increase of the snail beach area and riverbed area growth and snail spread; river beach have The causes of snails were mainly non-snail in the previous year, but not net and snail spread. At present, the beach blocks that can be exploited account for 57.07% of the untapped river beach area. If all development is completed, 47.16% of the existing riverbank snail snails area can be eliminated. Conclusion The characteristics of beach seagrass and snails in Jiangtan area of Jiangsu Province are basically mastered. The feasibility of harnessing and exploiting riverside beaches is discussed. The control strategies of snail control by seagrass .