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OALib Journal期刊
ISSN: 2333-9721
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四川盆周西缘山地3种人工林土壤动物群落特征
DOI: 10.3724/SP.J.1145.2013.00618, PP. 618-622
Keywords: 四川盆周西缘山地,人工林,土壤动物,群落结构
Abstract:
为揭示人工林种植对土壤动物组成与群落结构的影响，采用手捡法和干湿漏斗法，对四川盆周西缘山地3种典型人工林土壤动物群落进行调查.结果显示，从3种人工林共获土壤动物1869只，分属6门11纲23目，平均密度为2.09×104ind.m-2，其中，各人工林土壤动物密度排序为柳杉林（cf）＞水杉林（mg）＞楠木林（pz），两两间均达显著水平（p＜0.05）.对不同类型土壤动物进行比较，结果显示，各人工林大型土壤动物密度存在显著差异，其类群数排序为cf＞mg＞pz，中小型土壤动物密度以柳杉林显著高于水杉林和楠木林（p＜0.05），但水杉林和楠木林无显著差异.对同功能种团的研究显示，枯食性、捕食性和植食性土壤动物密度以楠木林显著高于柳杉林和水杉林（p＜0.05）；杂食性土壤动物密度以柳杉林显著高于楠木林和水杉林（p＜0.05）；腐食性土壤动物密度以水杉林显著高于其他两类人工林（p＜0.05）.3种人工林土壤动物群落的密度-类群指数（dg）以柳杉人工林显著高于其他两类人工林（p＜0.05），均匀度指数（j）以楠木林显著高于柳杉和水杉林（p＜0.05），3类人工林的shannon指数（h’）和优势度指数（c）均存在显著差异.图1表7参27
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