草业学报2011，Vol.20Issue(6)：143-149,7.
羊草草原主要凋落物分解及土壤动物的作用
Main species litter decomposition and function of soil fauna in Leymus chinensis grassland
摘要
Abstract
This study is on the decomposition of main species litter and the function of soil fauna in Leymus chinensis grassland. The results show that there are differences in decomposition rate both among litter species and mesh bags. Chloris virgata litter decomposes fastest, meanwhile litter in 4 and 2 mm mesh bags have higher decomposition rates than those in 0. 01 mm mesh bags. For the composition of soil fauna community in litter decomposition process, Gamasida, Actinedida and Oribatida are dominant groups, while Lygaeidae, Psocidae, Cydnidae, Pseudachorutidae, Microphysidae, Isotomidae and Tubalifera are common groups. Soil fauna community has generally accelerated the rates of litter decomposition, but the contributions of macro and mesh-micro soil fauna are different. Mesh-micro soil fauna has a stronger role of promoting the litter decomposition. The pearson correlation analysis indicates there is a significant negative relationship between litter mass loss percent and diversity index of soil fauna community, while the relationship does not exist between other soil fauna community characters and litter mass loss percent.关键词
凋落物/分解过程/土壤动物/羊草草原Key words
litter/ decomposition/ soil fauna/ Leymus chinensis grassland分类
农业科技引用本文复制引用
王星丽,殷秀琴,宋博,辛未冬,李波,马宏彬..羊草草原主要凋落物分解及土壤动物的作用[J].草业学报,2011,20(6):143-149,7.基金项目
国家自然科学基金项目(40871120)和东北师范大学测试中心项目资助. （40871120）
