甘肃太统-崆峒山国家级自然保护区湿地土壤无脊椎动物群落特征

发布时间：2018-05-05 19:57

本文选题：太统-崆峒山国家级自然保护区 + 湿地　；参考：《土壤》2017年01期

【摘要】：土壤动物是湿地生态系统的重要组成部分,对湿地营养物质循环具有重要的作用。2013年10月至2015年7月,对甘肃太统-崆峒山国家级自然保护区16个湿地斑块的土壤无脊椎动物群落特征进行了研究,共获得土壤无脊椎动物7门130类185 033只。节肢动物门(Arthropoda)和线虫动物门(Nemata)为优势类群,分别占总捕获量的47.50%和26.08%;环节动物门和轮虫动物门为常见类群,分别占总捕获量的14.95%和9.26%;扁形动物门、软体动物门和缓步动物门为罕见类群,分别占总捕获量的1.25%、0.66%和0.30%。节肢动物门和线虫动物门构成了土壤动物的主体,对土壤动物群落特征起着决定性作用。16个湿地斑块中,2#样地的土壤动物个体数量最多;7#样地的类群数量最多,Shannon-Wiener物种多样性指数(4.496 7)最高;14#样地土壤动物个体数量和类群数量都最少。各样点土壤动物间的相似性指数在0.594 6~1之间,表明16个湿地斑块的土壤动物群落多样性为中等不相似到中等相似,这反映了甘肃太统-崆峒山国家级自然保护区的16个湿地斑块保护状况良好,受外来影响较少;同时也反映了不同斑块之间的差异性,这些差异性与人类活动干扰有关。
[Abstract]:Soil fauna is an important component of wetland ecosystems and plays an important role in wetland nutrient cycling. From October 2013 to July 2015, The characteristics of soil invertebrate community in 16 wetland patches in Taituang-Kongtong Mountain National Nature Reserve of Gansu Province were studied. A total of 185,033 soil invertebrates belonging to 130 classes were obtained. Arthropoda (Arthropoda) and Nemata (Nemata) are the dominant groups, accounting for 47.50% and 26.08% of the total catch, respectively; annellidae and rotifer are common groups, accounting for 14.95% and 9.26% of the total catch, respectively; Phylum mollusca and phylum bradyphyla are rare groups, accounting for 1.25% and 0.30% of the total catch, respectively. Arthropods and nematodes form the main body of soil animals. Among the 16 wetland patches, the number of soil animal individuals was the largest in the 18 wetland patches, and the highest number of soil fauna individuals was found in the Shannon-Wiener species diversity index of 4.496 7). And groups are the least numerous. The similarity index of soil fauna was 0.594 ~ (-1), which indicated that the diversity of soil fauna communities in 16 wetland patches was medium dissimilar to moderate similarity. This indicates that the 16 wetland patches in Taituang-Kongtong Mountain National Nature Reserve of Gansu Province are in good condition and are less affected by external influences, and also reflect the differences among different patches, which are related to the disturbance of human activities.
【作者单位】：甘肃民族师范学院化学与生命科学系;西北师范大学生命科学学院;甘肃太统-崆峒山国家级自然保护区管理局;
【基金】：甘肃太统崆峒山国家级自然保护区科研基金项目(20140301) 甘肃民族师范学院校长科研基金项目(15-02)资助
【分类号】：S154

【参考文献】