Abstract: The wetland is the unique ecosystem that is formed by the interaction between water and land on the earth surface. At present，the wetland ecology and wetland protection is becoming a more and more attention. Oncomelania hupensis is also a wet? land creature that is the only snail host for spreading schistosomiasis japonica. The chemical drugs and environmental modification are usually used to the snail control in the schistosomiasis prevention and control. These control measures have different degrees of influence on wetland ecology. In order to meet the requirements of wetland protection，and to strengthen the research of the snail control appropriate technologies on wetland，this paper expounds the influence of different types of wetlands on Oncomelania and the influence of the snail control on wetland ecology. This paper also discusses the countermeasures of snail control of wetlands.

Key words: Oncomelania hupensis； Schistosomiasis japonica； Wetland protection

摘要： 湿地是地球上水陆相互作用形成的独特生态系统。当前湿地生态和湿地保护日益受到重视， 而传播日本血吸虫 病唯一的螺宿主——钉螺也是一种湿地生物。在血吸虫病防治中通常采用化学药物和改变生态环境的措施实现控制钉 螺， 而这些措施对湿地生态存在不同程度的影响。为了适应湿地保护要求， 加强湿地钉螺控制适宜技术研究， 本文重点阐 述不同类型湿地对钉螺孳生的影响， 以及钉螺控制措施对湿地生态的影响， 讨论湿地钉螺控制对策。

关键词: 钉螺； 日本血吸虫病； 湿地保护