摘要
土壤动物参与了物质循环及能量流动,这对生态系统具有重要的作用。分析了兴安落叶松林不同林型中小型土壤动物群落特征、土壤动物群落分布规律及影响群落分异的土壤环境因子。对杜鹃兴安落叶松林、草地兴安落叶松林、杜香兴安落叶松林及苔藓兴安落叶松林这4个典型林型进行分析,发现中小型土壤动物59类共计59138只。结果表明,优势类群为甲螨亚目(Oribatida)、弹尾目(Collembola),常见类群为中气门亚目(Mesostigmata)。个体数在草地林型中最多,类群数在杜鹃林型中最多。群落Shannon指数及Pielou指数在苔藓兴安落叶松林最高,Simpson优势度指数与Margalef丰富度指数在杜香安落叶松林最高。苔藓兴安落叶松林中小型土壤动物群落组成与另外3个林型差异性较大。全氮、全磷及土壤有机碳是影响不同林型土壤动物群落组成最主要的因子且土壤环境因子对甲螨亚目、弹尾目及蠓科幼虫(Ceratopogouidae larvae)影响较大。
Soil faunas play a significant role in the material circulation and energy flow of soil ecosystem.The study analyzes the characteristics of meso-micro soil fauna communities in different forest,the distribution of soil fauna communities and the soil environmental factors influencing community differentiation.4 typical Larix gmelini forests,including Rhododendron simsii-,grass-,Ledumpalustre-,and mosses-larch forest,are selected.The results show that a total of 59138 meso-micro soil animals of 59 species are obtained.The dominant groups are Oribatida and Collembola,and the common group is Mesostigmata.The number of meso-micro soil animal individuals is the largest in the grass-larch forest,and the number of groups is the largest in the Rhododendron simsii-larch forest.The Shannon diversity index and Pielou evenness index are the highest in the mosses-larch forest,and the Simpson dominance index and Margalef abundance index are the highest in the Ledumpalustre-larch forest.The composition of meso-micro community in the mosses-larch forest is different from the other three forest types.Total nitrogen,total phosphorus and soil organic carbon are the most important influencing factors of the community composition of meso-micro soil fauna in different forest types,and soil environmental factors have a greater impact on Oribatida,Collembola and Ceratopogouidae larvae.
作者
付晓宇
魏丹
潘虹
杨立宾
张荣涛
Fu Xiaoyu;Wei Dan;Pan Hong;Yang Libin;Zhang Rongtao(Institute of Natural Resources and Ecology,HAS,Harbin 150040,China)
出处
《黑龙江科学》
2023年第16期4-9,共6页
Heilongjiang Science
关键词
寒温带
土壤动物
群落结构
兴安落叶松林
分异
Cold temperate zone
Soil fauna
Community constructure
Larix gmelini forest
Differentiation
