山丘地区无障碍灭螺的近期效果

目的探索消灭山丘地区复杂环境和水产养殖区域钉螺的有效方法,为制定灭螺对策提供科学依据。方法全面实施组织上、行动上和措施上的无障碍灭螺举措,灭螺结束后对当年灭螺质量进行评估,一年后对近期灭螺效果进行评估。结果当年灭螺质量合格率达95.50%;一年后有螺面积从2006年的133 130m2压缩到2007年春的18 720m2,有螺面积压缩率达85.94%。结论实施无障碍灭螺举措,山丘地区复杂环境和水产养殖区域的灭螺难题是能够突破的。

Recent effect of molluscicidat measures with no obstacle executed in hilly areas

To find out the effecient measures to kill oncomelania snails in complicated environments of hilly areas and the aquicuhural regions and to provide scientific basis to devise the molluscicidal counter-measures, the molluscicidal efforts with no obstacle were executed comprehensively in organization and actions. The molluscicidal quality after the project was evaluated at the same year and the recent effect was assessed one year later. It was found that the approved rate of molluscicidal quality at the same year was 9 5.5%. One year later,the area with snails was reduced from 133130 m^2 in 2006 to 18720 m^2 in spring of 2007 with a reduction rate of area with snails of 85.94%. It is concluded that the problem of molluscidal effect due to the complicated environment of hilly areas and the aquicuhural regions can be solved through implementing the mulluscicidal measures with no obstacle.