Effects of water table changes on soil CO2, CH4 and N2O fluxes during the growing season in freshwater marsh of Northeast China
| 第一作者： |
侯翠翠 |
| 英文第一作者： |
Hou, C. C. |
| 联系作者： |
宋长春 |
| 英文联系作者： |
Song, C. C. |
| 发表年度： |
2013 |
| 卷： |
69 |
| 摘要： |
A field control experiment was carried out to determine the influence of water table changes on soil CO2, CH4, and N2O emissions in Calamagrostis angustifolia freshwater marsh in Northeast of China. The results showed that the water depth of 5 cm below the ground surface increased soil CO2 emission, but there was no significant influence of deeper water table on gas emission. CH4 emission was accelerated by deep standing water and approached the peak in the plant booming time. This suggests that root activity has influence on CH4 production. The result also demonstrated that both low water table level and inundated environment would inhibit N2O emission. Comparing the total global warming potential of three gases under different conditions, it can be concluded that maintaining a comparatively steady water table near the soil surface can benefit soil carbon sequestration in the C. angustifolia marsh, and decrease of the greenhouse gases emissions to the atmosphere. |
| 刊物名称： |
Environmental Earth Sciences |
| 参与作者： |
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