CAJ | 학술논문

目的：分析安徽省长江流域螺情变化趋势，为钉螺防控提供理论依据。方法收集1992~2012年间安徽省长江流域活螺和感染性钉螺密度及钉螺感染率资料，观察其变化趋势，并分析影响螺情变化的相关因素。结果山丘活螺密度总体上最高，并于1993、1996、2001年出现高峰期；1992~1998年江滩活螺密度高于洲滩，1998年之后洲滩高于江滩，江滩活螺密度于1996、1998年出现高峰期，洲滩于2003年出现高峰期。洲滩感染性钉螺密度及钉螺感染率高于江滩、山丘，并于2004年出现高峰期，山丘于1993、1997年出现高峰期。结论长江流域螺情变化受自然和社会环境等多方面因素影响，在加强传染源控制的同时应重视螺情控制。
목적：분석안휘성장강류역라정변화추세，위정라방공제공이론의거。방법수집1992~2012년간안휘성장강류역활라화감염성정라밀도급정라감염솔자료，관찰기변화추세，병분석영향라정변화적상관인소。결과산구활라밀도총체상최고，병우1993、1996、2001년출현고봉기；1992~1998년강탄활라밀도고우주탄，1998년지후주탄고우강탄，강탄활라밀도우1996、1998년출현고봉기，주탄우2003년출현고봉기。주탄감염성정라밀도급정라감염솔고우강탄、산구，병우2004년출현고봉기，산구우1993、1997년출현고봉기。결론장강류역라정변화수자연화사회배경등다방면인소영향，재가강전염원공제적동시응중시라정공제。
Objective To understand the trend of Oncomelania hupensis status in Yangtze River valley, Anhui Province, and provide basis for snail control. Methods The data of snail condition in the Yangtze Riv-er valley from 1992 to 2012 in Anhui province, including the density of living snails and infected snails, infect-ed rate of snails was collected. The change trend and influence factors were analyzed. Results The density of living snails in hilly areas was generally higher than that in marshland, and 3 peaks appeared in 1993, 1996 and 2001. From 1992 to 2008 the density of living snails in the beach along the Yangtze River was higher than that in islets, and conversed after 1998. The density of living snails appeared 2 peaks in 1996 and 1998 in the beach and 1 peak appeared in 2003 in islets. The density of infected snails and the infected rate of snails in is-lets were higher than that in beaches and hilly areas. The density of infected snails and the infected rate of snails appeared 1 peak in islets in 2004 and 2 peaks in hilly areas in 1993 and 1997. Conclusion The situation of snails in the Yangtze River valley was related to natural and social circumstance, so we should strengthen both snail control and infectious source control.