[Co-occurrence of soil fauna communities with changes in altitude on the northern slope of Changbai Mountain].
[Co-occurrence of soil fauna communities with changes in altitude on the northern slope of Changbai Mountain].
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发表时间：
2003-10
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通讯作者：
Fu-chun Tong;Zhedong Jin;Qing-li Wang;Yihua Xiao
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作者：
Fu-chun Tong;Zhedong Jin;Qing-li Wang;Yihua Xiao
不同海拔土壤动物群落的共现在一定程度上反映了群落间的关系、共存以及物种沿着海拔梯度的更替。不同物种沿沿着海拔梯度的连续或间断分布，不仅反映了海拔梯度上的环境变化，而且反映了物种的生物生态空间性和适应性。长白山北方土壤动物类型和物种多样性较高，且多样性格局沿海拔梯度沿着变化较大，是研究生物多样性和梯度格局的理想样带。在长白山北方海拔550 ~ 2560 m，每隔100 m设22个样地进行调查。利用Jaccard指数分析了不同海拔土壤动物群落的共生性。不同生活型的物种或所有物种作为一个整体，土壤动物群落之间的共现率最高，但不同土壤动物类型之间的共现率不高。土壤动物群落共现率的峰谷值与其梯度格局相匹配，不同层次或所有土壤动物群落的共现率随海拔差异的增大而降低。
The co-occurrence of soil fauna communities at different altitudes may reflect at some extent the relationships among communities, their coexistence, and the replacement of species along the altitude gradient. The continuous or disjunctive distribution of different species along altitude gradient not only reflected the environment variation at altitude gradient, but also the biological and ecological spatiality as well as the adaptability of species. The northern slope of Changbai Moutain has not only a high diversity in soil fauna types and species, but also a high variation of diversity pattern along the altitude gradient, which is a perfect transect for the research of biodiversity and gradient patterns. From 550 m to 2,560 m on the northern slope of Changbai Mountain, twenty-two plots were investigated with an interval of 100 m in altitude. By using Jaccard index, the co-occurrence of soil fauna communities at different altitudes was analyzed. For the species of different life forms or for all the species as a whole, the co-occurrence of soil faunae between neighboring communities was the highest, except for that between different soil fauna types. The peak and valley values of the co-occurrence of soil fauna communities along altitude gradient were matched with their gradient patterns, and the co-occurrence of soil faunae at different layers or all of the soil fauna communities were decreased with increasing altitude difference.