滩地钉螺种群消长与杨树人工林关系的研究  

Relationship of the growth and decline of Oncamelania hupensis population in beach and poplar plantations

作　　者：吴立勋[1] 汤玉喜[1] 吴敏[1] 徐世凤[1] 林建新 彭光裕 

机构地区：[1]湖南省林业科学院,湖南长沙410004 [2]沅江市林业局,湖南益阳413100

出　　处：《湖南林业科技》2004年第6期5-9,共5页Hunan Forestry Science & Technology

摘　　要：在南洞庭湖和西洞庭湖的滩地杨树人工林内采取定位观测为主的研究方法,对滩地的地下水位、土壤含水率、螺情的变化规律及其与滩地杨树人工林的相关关系进行了定量研究,揭示了杨树人工林内钉螺种群消长的内在规律和环境因子的偶发效应,显示出滩地杨树人工林生态系统抑螺机制的有效性和持续性,体现了滩地杨树抑螺林的血防安全意义。Research was completed using the position observation method on the poplar plantation in the beach of south and west Dongting Lake also quantitative research on the groundwater level of the beach and the moisture content of soil was done to determine the relationship of the changing regularity of Oncamelania hupensis with poplar plantation. The adventitious effect of environmental factors and the growth and decline regularity of Oncamelania hupensis in poplar plantations were measured. The effect of the retarded growth of Oncamelania hupensis by the poplar plantation ecological system was measured and the safety significance of beach poplar was shown in the article.

关 键 词：钉螺密度 地下水位 湖水水位 滩地 杨树人工林 

分 类 号：S763.7[农业科学—森林保护学]