Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8364041 | Soil Biology and Biochemistry | 2015 | 4 Pages |
Abstract
Soil fauna can significantly affect soil CO2 and N2O emissions, but little is known about interactions between faunal groups and their relative contribution to such emissions. Over a 64-day microcosm incubation, we studied the effects of an epigeic earthworm (Eisenia fetida), mesofauna (Collembola plus oribatid mites) and their combinations on soil CO2 and N2O emissions under two faunal densities. Earthworms significantly enhanced soil CO2 and N2O emissions, while mesofauna only increased N2O emissions. Soil CO2 and N2O emissions were significantly affected by earthworm density, but not by mesofauna density. No significant interactive effects between earthworms and mesofauna were found on soil CO2 and N2O emissions. Our results indicate that earthworms probably play the dominant roles in determining soil CO2 and N2O emissions where they coexist with soil mesofauna.
Related Topics
Life Sciences
Agricultural and Biological Sciences
Soil Science
Authors
Haitao Wu, Mingzhu Lu, Xianguo Lu, Qiang Guan, Xinhua He,