西藏东南部林牧交错带林地与湿地的土壤动物群落比较

发布时间：2018-05-15 10:10

本文选题：西藏东南部 + 林地与湿地　；参考：《西北农业学报》2017年11期

【摘要】：比较研究西藏东南部典型林牧交错地带林地与湿地的土壤动物群落特征,为西藏东南部林地、湿地土壤动物群落研究提供科学数据。采用土钻法随机取样,Tullgren干漏斗法分离,参考土壤动物检索图鉴及大类别分类方法进行鉴定,并以DG多样性、Jaccard相似性系数q和Gower系数Sg分析该地区林地和湿地的土壤动物群落结构。结果表明,样地内(林地和湿地)共捕获土壤动物393头,属3门6纲18类,其中林地优势类群为弹尾目,湿地优势类群为弹尾目与前气门亚目。2种生态类型土壤动物群落的DG差异不显著,群落类群个体数相似性不高,但林牧交错地带林地与湿地土壤动物个体数的异质性比类群数高。西藏东南部林地与湿地土壤动物密度、类群以及群落多样性均不同。土壤含水量明显影响土壤动物群落结构与数量,土壤动物群落结构的类群与总个体数相似性均不高。
[Abstract]:The characteristics of soil fauna community in typical forestland and wetland in southeastern Tibet were studied in order to provide scientific data for the study of woodland and wetland soil fauna community in southeastern Tibet. Tullgren dry funnel method was used to separate the soil samples, and the soil fauna was identified by referring to the soil fauna retrieval map and the classification method of large categories. Jaccard similarity coefficient Q and Gower coefficient Sg of DG diversity were used to analyze the soil fauna community structure of woodland and wetland in this area. The results showed that 393 soil animals, belonging to 3 phyla, 6 classes and 18 classes, were captured in the sample plots (woodland and wetland). There was no significant difference in DG between the two ecological types of soil fauna community, and the number of individuals in the community group was not high. But the heterogeneity of individual number of soil animals in forestland and wetland in the ecotone of forest and pasture was higher than that in group. The density, taxa and community diversity of woodland and wetland soil in southeastern Tibet are different. Soil water content significantly affected the structure and number of soil animal communities, and the similarity between the groups of soil animal communities and the total number of individuals was not high.
【作者单位】：西藏农牧学院植物科学学院;西藏高原资源昆虫与应用昆虫实验室;淮北师范大学生命科学学院;
【基金】：国家自然科学基金(41561054) 西藏农牧学院柔性人才引进项目(RXR201603)~~
【分类号】：S154;S714.3

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