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为了解鄱阳湖湿地钉螺种群生态变化的影响因子。根据2011年鄱阳湖水情的变化,参考历史螺情资料,对星子县、永修县4块草洲进行了野外调查,结合室内实验,进行时空动态螺情变化分析。因为2006、2007和2011年是鄱阳湖区20年和60年一遇的降雨量最少的年份,原来成片状、面状、聚集性分布的钉螺,变成点状、线状、散在性分布,给螺情调查带来较大的困难。干旱可使草洲钉螺大量死亡或消失,今后应改变查螺方法,注意特殊环境的全面搜查。
To understand the ecological factors of snail population in Poyang Lake wetland. According to the change of water regime in Poyang Lake in 2011, the author made a field survey of four grasslands in Xingzi County and Yongxiu County by referring to the historical spiral information. Combined with laboratory experiments, the spatial and temporal dynamics of the spirochetes were analyzed. Since 2006, 2007 and 2011 were the year with the least amount of rainfall in 20 and 60 years in the Poyang Lake area, the snails originally in the shape of sheet, surface and aggregation became point-like, linear and scattered distribution, Spiral survey to bring greater difficulty. Drought can make a large number of grass snail snail death or disappear in the future should change the snail method, pay attention to a comprehensive search of special circumstances.