摘要
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 influencing factors on the snail populations＇ ecological changes in Poyang Lake wedand. According to the 2011 water regime change in Poyang Lake, Reference to the historical data of snail populations,the survey of four continents grass field Xingzi and Yongxiu County, spatial the dynamic analysis of temporal changes of snail populations was conducted, combined with labora- tory experiments. Because 2006 and 2007 are the least rainfall years in twenty years ,2011 is the least rainfall year in sixty years in the Poyang Lake area, face shape, aggregation distribution of snails into point,line,diffuse distribution,bringing about greater difficulties in investigating snail populations. Conclusion：Droughts can make a lot of method of investigating snail populations should be paid attention to. snails die or disappear in the grassland, in the future the should be changed and searching the special circumstances
出处
《江西科学》
2013年第4期450-452,460,共4页
Jiangxi Science
基金
国家科技支撑计划项目(2009BAI78B01)
江西省自然科学基金项目(20122BAB205046)
全国科学院联盟建设专项
江西省科学院国家级预研项目(2011-YGY-04)
关键词
钉螺
气候干旱
鄱阳湖湿地
Snails, Dry climatic, Poyang Lake wetland
