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目的探讨江滩土地整理工程对汛期钉螺滞留的影响。方法 2011年采用移除野柳林、削高填低、提升坡度等方法对江滩土地进行整理,2012年调查对比整理前、后汛期末江滩钉螺情况。结果 2010年汛期末有螺框出现率为96.5%,钉螺密度为3.655只/0.1 m2;2012年汛期末有螺框出现率为2.0%,钉螺密度为0.015只/0.1 m2;整理前、后有螺框出现率差异有统计学意义(χ2=357.29,P<0.01)。结论土地整理工程对抑制汛期江滩钉螺滞留具有明显作用。
Objective To investigate the effect of land consolidation project of Jiangtan on snail retention in flood season. Methods In 2011, the land of river beach was sorted out by removing the wild willow forest, lowering the height and filling the slope, and improving the slope. In 2012, the survey was conducted to compare the situation of the snail on the beach before and after the flood season in 2012. Results At the end of flood season in 2010, the occurrence rate of screw frame was 96.5% and the density of snail was 3.655 /0.1 m2. At the end of flood season in 2012, the occurrence rate of screw frame was 2.0% and the density of snail was 0.015 /0.1 m2. Before and after finishing There was a significant difference in the appearance rate of screw frame (χ2 = 357.29, P <0.01). Conclusion Land consolidation works have a significant effect on the suppression of Oncomelania huppugar in flood season.