[目的]了解不同环境水土植被条件下钉螺的孳生特点,探讨城市化背景下血吸虫病流行因素的变化。[方法]采集闾江口直湖港闾江河和太湖内滩池塘的水土植被,于2009年3月21日至7月6日,分别进行钉螺生存的模拟实验,观察钉螺的存活情况,比较100d存活率。检测两个点水样和土样的理化指标。[结果]水样的溶氧量内滩池高于闾江河(P<0.01),氨氮和氯化物内滩池低于闾江河(P<0.01),其他指标2个点的差异无统计学意义(P>0.05);土样的Mg2+含量闾江河低于内滩池(P<0.01),其他指标2个点的差异均无统计学意义(P>0.05)。钉螺100d存活率为67.00%,其中A箱、B箱、C箱、D箱分别为59.67%、62.00%、68.33%、78.00%(P<0.01);两两比较,D箱高于A箱、B箱、C箱(P<0.01),C箱高于A箱(P<0.05);B箱与A箱、C箱的差异均无统计学意义(P>0.05)。[结论]太湖内滩池塘的水土植被环境较闾江河更适于钉螺的存活。 [Objective] The research aimed to understand the characteristics of snail breeding in different environment of soil and water vegetation and to explore the change of epidemic factors of schistosomiasis in urbanization. [Method] The water and soil vegetation of Lujiang river and Taihu Lake inland pond were collected from Zhijiang port of Lujiang estuary. From March 21 to July 6, 2009, the simulation experiment of snail survival was conducted respectively to observe the survival of snail and to compare the survival of snail rate. Detection of water and soil samples at two points of physical and chemical indicators. [Result] The dissolved oxygen in water sample was higher than that in Lujiang River (P <0.01), and the ammonia nitrogen and chloride inland pools were lower than those in Lu River (P <0.01). There was no significant difference in other indexes between two sites (P > 0.05). The content of Mg2 + in soil sample was lower than that in the littoral pool (P <0.01). There was no significant difference in other two indexes between the two samples (P> 0.05). Survival rate of Oncomelania hupensis 100d was 67.00%, among which A, B, C and D boxes were 59.67%, 62.00%, 68.33% and 78.00% respectively (P <0.01) (P <0.01). The C-box was higher than that of A-box (P <0.05). There was no significant difference between B-box and A-box and C-box (P> 0.05). [Conclusion] The environment of water and soil vegetation in the littoral pond of Taihu Lake was more suitable for the survival of snails than that of Lu River.