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生长季节初期高山针叶林小生境土壤动物群落多样性

DOI: 10.3724/SP.J.1145.2012.00303, PP. 303-308

Keywords: 高山森林,小生境,土壤动物,群落结构,多样性,季节转换

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Abstract:

研究了非生长季节向生长季节转换过程中川西高山森林土壤动物群落结构和多样性的特征,以期解释土壤动物群落的自适应变化.从川西高山原始针叶林下6种小生境共捕获大型土壤动物为3167只,隶属于2门8纲16目,以林隙小生境内大型土壤动物的个体密度(530.71只/m2)和类群数量(10类)最高;中小型土壤动物为10585只,隶属于4门8纲8目,以苔藓小生境内中小型土壤动物的个体密度(148400.00只/m2)和林隙小生境中类群数(8类)最高.林隙小生境中的大型土壤动物群落shannon-wiener多样性指数h’和pielou均匀性指数j最高,simpson优势度指数c最低,但倒木小生境表现出相反的趋势.林下凋落物小生境的中小型土壤动物群落多样性指数h’最高,c最低,但灌木小生境则相反.表5参23

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