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- Title
Decomposition of eucalyptus-alder mixed litters and dynamics of soil faunal community.
- Authors
LI Yan-hong; LUO Cheng-de; YANG Wan-qin; HU Jie; WU Fu-zhong
- Abstract
In order to understand the decomposition characteristics of eucalyptus (Eucalyptus grandis)鄄alder (Alnus formosana) mixed litters and the roles of soil fauna in the decomposition process, litter samples of the two tree species were collected from the Suji Town of Leshan, Sichuan Province, and mixed with different proportions. The mixtures were put in 6鄄, 30鄄, and 260鄄mesh litterbags to investigate their mass loss and the dynamics of soil faunal community during the process of decomposition. Different proportion mixtures all presented the same decomposition pattern, i. e. ,decomposed rapidly in early period and slower in later period. The mixtures had the highest decomposition rate in 6鄄mesh litterbag, followed by in 30鄄mesh, and in 260鄄mesh litterbag. In the litterbags with same meshes, the decomposition rate of different proportion mixed litters also varied. In 6鄄mesh litterbag, the durations for the decomposition of the litters had slight difference; while in 30鄄and 260鄄mesh litterbags, the durations for pure E. grandis and A. formosana litters getting 95% mass loss had a difference of 1175 and 908 days, respectively. During the decomposition of the litters, soil macrofauna had an obvious change in community structure. In early period, Psocoptera dominated; in mid period, Opisthopora dominated; in later period, Coleoptera dominated; and by the end, Diptera dominated. This study provided important information to understand the material cycling in eucalyptus鄄alder mixed plantation.
- Subjects
LESHAN (Sichuan Sheng, China); SICHUAN Sheng (China); CHINA; BIODEGRADATION of plant litter; EUCALYPTUS grandis; ALDER; SOIL animals; HAPLOTAXIDA
- Publication
Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao, 2011, Vol 22, Issue 4, p851
- ISSN
1001-9332
- Publication type
Article