Effects of temperature, soil moisture, soil type and their interactions on soil carbon mineralization in Zoig alpine wetland, Qinghai-Tibet Plateau
文献类型：SCI/SSCI论文
| 作者 | Gao J. Q. ; Ouyang H. ; Lei G. C. ; Xu X. L. ; Zhang M. X. |
| 发表日期 | 2011 |
| 关键词 | alpine wetland carbon mineralization marsh soil peat soil soil moisture Qinghai-Tibet Plateau water-table nitrogen mineralization methane emissions northern wetlands climate-change co2 peatland ch4 exchange dioxide |
| 英文摘要 | Wetland stores substantial amount of carbon and may contribute greatly to global climate change debate. However, few researches have focused on the effects of global climate change on carbon mineralization in Zoig alpine wetland, Qinghai-Tibet Plateau, which is one of the most important peatlands in China. Through incubation experiment, this paper studied the effects of temperature, soil moisture, soil type (marsh soil and peat soil) and their interactions on CO(2) and CH(4) emission rates in Zoig alpine wetland. Results show that when the temperature rises from 5A degrees C to 35A degrees C, CO(2) emission rates increase by 3.3-3.7 times and 2.4-2.6 times under non-inundation treatment, and by 2.2-2.3 times and 4.1-4.3 times under inundation treatment in marsh soil and peat soil, respectively. Compared with non-inundation treatment, CO(2) emission rates decrease by 6%-44%, 20%-60% in marsh soil and peat soil, respectively, under inundation treatment. CO(2) emission rate is significantly affected by the combined effects of the temperature and soil type (p < 0.001), and soil moisture and soil type (p < 0.001), and CH(4) emission rate was significantly affected by the interaction of the temperature and soil moisture (p < 0.001). Q (10) values for CO(2) emission rate are higher at the range of 5A degrees C-25A degrees C than 25A degrees C-35A degrees C, indicating that carbon mineralization is more sensitive at low temperature in Zoig alpine wetland. |
| 出处 | Chinese Geographical Science |
| 卷 | 21 |
| 期 | 1 |
| 页 | 27-35 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1002-0063 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/23998]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Gao J. Q.,Ouyang H.,Lei G. C.,et al. Effects of temperature, soil moisture, soil type and their interactions on soil carbon mineralization in Zoig alpine wetland, Qinghai-Tibet Plateau. 2011. |
入库方式： OAI收割
来源：地理科学与资源研究所
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