%0 Journal Article
%T 濒危植物单性木兰林区土壤动物群落结构与季节动态<br>Community composition and seasonal dynamics of soil fauna in endangered plant Kmeria septentrionalis forest
%A 李晓东
%A 史沉鱼
%A 覃国乐
%A 覃文更
%A 杨敏云
%A 杨尚渝
%J 华中农业大学学报
%D 2015
%X 为研究国家一级保护植物单性木兰林区土壤动物群落结构和季节动态，2012年3月至2013年1月，逐月对位于广西木论国家级自然保护区的单性木兰林区土壤动物群落，按凋落物层和土壤表面向下每5 cm为1层共5层进行四季调查，并对群落结构、垂直分布、多样性和季节动态进行分析。结果表明：从自然保护区的林区2200份土样中共获得大型、中型和湿生土壤动物12937只，隶属于6门11纲30类，优势类群为弹尾目和蜱螨目，常见类群为线虫纲、后孔寡毛目、近孔寡毛目、膜翅目和双翅目，全年A/C值<1； 土壤动物类群和个体数量垂直分布具有表聚性特征，但不是严格的逐层递减，且随季节变化有所波动。该自然保护区土壤动物类群数的季节动态为秋季>冬季>春季>夏季；个体数季节动态为秋季>夏季>春季>冬季；多样性的季节动态为秋季>春季>冬季>夏季。<br>To study the community composition, vertical structure, diversity and seasonal dynamics of soil fauna in Kmeria septentrionalis forest which is the first-class state protected plant in China,a monthly investigation was conducted between Mar., 2012 and Jan., 2013 in litter layer and soil layers with the depths of 0-5 cm, 5-10 cm,10-15 cm and 15-20 cm. A total of 12 937 of soil fauna individuals, belonging to 6 phyla,11 classes and 30 groups, respectively, were collected in 2 200 soil samples during the study. Two dominant groups,Acarina and Collembola, accounted for 74.69% of the soil fauna individuals. Five common groups, Nematoda, Oligochaet-a opisthopora,Oligochaeta plesiopara, Hymenoptera and Diptera, accounted for 22.26%. The A/C value <1. The vertical distribution of soil fauna groups and individuals in the soil profiles showed an surface accumulation,but no obvious decreasion layer by layer in some months and varied with the change of seasons. The seasonal change pattern of soil fauna group number of Kmeria septentrionalis forest was autumn＞winter＞spring＞summer. The number of soil fauna individual was autumn＞summer＞spring＞winter. The diversity of soil fauna groups was autumn＞spring＞winter＞summer.
%K 土壤动物 单性木兰 群落组成 季节动态&lt
%K br&gt
%K soil fauna Kmeria septentrionalis community composition seasonal dynamics
%U http://hnxbl.cnjournals.net/hznydxzr/ch/reader/view_abstract.aspx?file_no=20150404&flag=1