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目的 评价通江河道水利血防工程结合药物灭螺控制钉螺效果。方法 选择南京市浦口区朱家山河、七里河和高旺河为研究对象,采用资料回顾和现场调查方法,评估通江河道水利血防工程结合药物灭螺控制钉螺效果。结果通江河道实施水位控制、砼护坡水利血防工程及药物灭螺后,工程段钉螺即消除,内陆灌区未发生钉螺扩散,河口外江滩虽然仍保持有钉螺孳生,但钉螺密度大幅下降至1.0只/0.1 m~2以下。结论 通江河道水位控制、砼护坡结合药物灭螺综合措施可稳定有效地控制和消除钉螺孳生,阻止钉螺向内陆扩散。
Objective To evaluate the effect of snail control by combining snail control with drug snail control through water conservancy and blood protection projects in Tongjiang River. Methods The Zhujiashan River, Qilihe and Gaowang River in Pukou District of Nanjing City were selected as research objects. Data review and on-site investigation were used to evaluate the effects of snail control by snail control combined with drug snail control. Results After water level control, water conservancy, blood protection and anti-snail control of Tongjiang River, the snail of the engineering section was eliminated, and the snail spread did not occur in the inland irrigation area. Although the snail breeding was still maintained in the estuary of the estuary, the snail density dropped sharply to 1.0 /0.1 m ~ 2 or less. Conclusion The comprehensive control measures of water level control and concrete slope protection combined with drug snail control in Tongjiang River can control and eliminate the snail breeding stably and effectively and prevent snail from spreading inland.