Response of Soil Respiration to Altered Snow Cover in a Typical Temperate Grassland in China
文献类型：期刊论文
| 作者 | Liu, Yanqi; Peng, Qin |
| 刊名 | AGRICULTURE-BASEL
 |
| 出版日期 | 2023-11-01 |
| 卷号 | 13期号:11页码:15 |
| 关键词 | soil carbon emission snow change non-growing season freeze-thaw temperate region |
| DOI | 10.3390/agriculture13112081 |
| 通讯作者 | Peng, Qin(pengqin@igsnrr.ac.cn) |
| 英文摘要 | The snow cover in temperate areas is undergoing significant changes, which may affect soil respiration (Rs), the second largest carbon flux in global carbon cycling. However, currently, there are relatively few in situ field studies on the effects of altered snow cover on Rs in temperate areas during the non-growing season compared to the research on Rs during the growing season. Therefore, it limited the accurate prediction of the characteristics and magnitude of changes in soil carbon emissions in temperate areas under global change scenarios. Here, an in situ field experiment was conducted in a typical grassland in Inner Mongolia in China to explore the characteristics of Rs under three different snow cover treatments, i.e., increasing snow (IS), decreasing snow (DS), and ambient snow that was regarded as the control check treatment (CK). The results showed that the range of Rs flux and cumulative emission flux in all treatments in the non-growing season in the study area ranged from 5.87 +/- 0.20 to 55.11 +/- 6.42 mg CO2 m(-2) h(-1) and from 22.81 +/- 0.68 to 26.36 +/- 0.41 g C m(-2), respectively. During the observation period, the depth of the largest snow cover for each treatment did not exceed 18 cm, and none of the snow treatments caused significant variations in Rs flux (p > 0.05). However, the cumulative flux of Rs in the whole non-growing season was only stimulated significantly by 15.6% by the IS treatment compared with that of CK. The relatively high Rs flux in the non-growing season was observed to mainly occur in the soil deeply frozen period (DFP) and the soil melting period (SMP). Further analysis revealed that Rs flux under different snow treatments were mainly positively correlated with soil temperature during SMP. The main factors controlling Rs varied with different sampling periods. Our findings suggest that the non-growing season is also an important period of non-negligible carbon emissions from typical grassland soils in temperate zones. |
| WOS关键词 | FREEZE-THAW CYCLES ; MICROBIAL COMMUNITIES ; NITROGEN ADDITION ; CO2 EMISSIONS ; CARBON ; FOREST ; REMOVAL ; BIOMASS ; FLUXES ; REDUCTION |
| 资助项目 | National Natural Science Foundation of China ; Inner Mongolia Grassland Ecosystem Research Station, Chinese Academy of Sciences |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:001109379900001 |
| 资助机构 | National Natural Science Foundation of China ; Inner Mongolia Grassland Ecosystem Research Station, Chinese Academy of Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/200245]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Peng, Qin |
| 作者单位 | Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yanqi,Peng, Qin. Response of Soil Respiration to Altered Snow Cover in a Typical Temperate Grassland in China[J]. AGRICULTURE-BASEL,2023,13(11):15. |
| APA | Liu, Yanqi,&Peng, Qin.(2023).Response of Soil Respiration to Altered Snow Cover in a Typical Temperate Grassland in China.AGRICULTURE-BASEL,13(11),15. |
| MLA | Liu, Yanqi,et al."Response of Soil Respiration to Altered Snow Cover in a Typical Temperate Grassland in China".AGRICULTURE-BASEL 13.11(2023):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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