山东蒙山线蚓群落结构及其影响因子研究  

Structure of the Enchytraeid Community and Its Influencing Factors in Mengshan Mountain,Shandong Province,China

作　　者：蒋万祥[1] 陈静[1] 王洪凯[1] 胡遵鲁[1] 杨宁[1] 陈康[1] 

机构地区：[1]枣庄学院生命科学学院,山东枣庄277160

出　　处：《生态与农村环境学报》2013年第2期203-208,共6页Journal of Ecology and Rural Environment

基　　金：山东省自然科学基金(ZR2010CL004;ZR2011CQ012);国家自然科学基金(31100388);枣庄市科技攻关项目(201024-1)

摘　　要：于2011年9月对蒙山线蚓群落结构及其影响因子进行研究。共鉴定线蚓513条,隶属4属15种,Fridericia juveniles、Fridericia dianchiensis、Henlea sp6和Enchytraeus juveniles为优势种。各站位线蚓密度大小表现为站位S6>站位S1、S2、S4>站位S3、S5、S7。Margalef多样性指数、物种丰度和Shannon-Wiener多样性分别与海拔高度之间呈显著正相关。基于物种组成的非度量多维标度2维排序结果表明,站位S4和S7线蚓群落的物种组成非常相似,站位S2和S5线蚓群落的物种组成与其他站位间差异较大;基于密度的非度量多维标度排序结果表明,站位S4和S7线蚓群落结构相似,站位S1、S2和S6线蚓群落结构相似。群落百分比相似性分析表明,站位S1、S5、S6和S7之间线蚓群落相似性均较高,站位S2、S3和S4之间及其与其他站位之间群落相似性相对较低。小生境特征可主导线蚓密度和群落结构相似性。采用典范对应分析方法可将线蚓群落划分为4个种组;土壤含水量,有机质、总氮、总磷、氨氮、硝态氮和钾含量是影响线蚓群落结构的主要因子。In order to explore factors affecting structure of enchytraeid community, a study was carried out in Mengshan Mountain in September, 2011. In the study, a total of 513 individuals were collected and identified, belonging to 15 species of 4 genus ; Fridericia juveniles, Fridericia dianchiensis, Henlea sp6, Enchytraeus juveniles were the dominant species. One-way ANOVA analysis was performed to compare sampling stations in density of enchytraeid, and found the stations followed the order of S6 〉 S1, S2 and S4 〉 S3, S5 and S7. And it was also found that Margalef diversity index, Shannon-Wiener diversity index and species richness was positively related to altitude. Non-matric multidimentional scaling 2-dimensional ordination of specific composition reveals that S4 and S7 were quite similar in specific composition of their enchytraeid communities and S2 and S5 differed sharply from other stations in this aspect. Non-matric multidimentional scaling ordination of density indicates that similarity existed between S4 and S7 and between S1, S2, and S6 in structure of enchytraeid community. Percentage similarity analysis shows that S1, S5, S6 and S7 were quite similar, and S2, S3 and S4 were not so much between each other. Characteristics of microhabitats were the main factor affecting similarity in enchytraeid density and community structure. Canonical correspondence analysis divided the community into 4 species groups. Contents of soil water, soil organic matter, total nitrogen, total phosphorus, ammonia nitrogen, nitrate nitrogen and potassium are the major factors affecting structure of the enchytraeid community.

关 键 词：线蚓 蒙山 生物多样性 群落结构 

分 类 号：Q958[生物学—动物学] X835[环境科学与工程—环境工程]