Decadal soil total carbon loss in northern hinterland of Tibetan Plateau
文献类型：期刊论文
| 作者 | Wu, Wenjuan; Zhao, Guang; Zhao, Bo; Zheng, Zhoutao; He, Yunlong; Huang, Ke3; Zhu, Juntao4; Zhang, Yangjian1,2,4 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2024-04-20 |
| 卷号 | 922页码:171190 |
| 关键词 | Soil carbon Northern Tibetan Plateau Alpine grasslands Precipitation Temperature |
| DOI | 10.1016/j.scitotenv.2024.171190 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | As the largest and highest plateau in the world, ecosystems on the Tibetan Plateau (TP) imply fundamental ecological significance to the globe. Among the variety, alpine grassland ecosystem on the TP forms a critical part of the global ecosystem and its soil carbon accounts over nine tenths of ecosystem carbon. Revealing soil carbon dynamics and the underlying driving forces is vital for clarifying ecosystem carbon sequestration capacity on the TP. By selecting northern TP, the core region of the TP, this study investigates spatiotemporal dynamics of soil total carbon and the driving forces based on two phases of soil sampling data from the 2010s and the 2020s. The research findings show that soil total carbon density (STCD) in total-surface (0-30 cm) in the 2010s (8.85 +/- 3.08 kg C m(- 2)) significantly decreased to the 2020s (7.15 +/- 2.90 kg C m(-2)), with a decreasing rate (Delta STCD) of -0.17 +/- 0.39 kg C m(-2) yr(-1). Moreover, in both periods, STCD exhibited a gradual increase with soil depth deepening, while Delta STCD loss was more apparent in top-surface and mid-surface than in sub-surface. Spatially, Delta STCD loss in alpine desert grassland was - 0.41 +/- 0.48 kg C m(- 2) yr(-1), which is significantly higher than that in alpine grassland (-0.11 +/- 0.31 kg C m(- 2) yr(- 1)) or alpine meadow (-0.04 +/- 0.28 kg C m(- 2) yr(- 1)). The STCD in 2010s explained >30 % of variances in Delta STCD among the set of covariates. Moreover, rising temperature aggravates Delta STCD loss in alpine desert grassland, while enhanced precipitation alleviates Delta STCD loss in alpine meadow. This study sheds light on the influences of climate and background carbon on soil total carbon loss, which can be benchmark for predicting carbon dynamics under future climate change scenarios. |
| WOS关键词 | TEMPERATURE SENSITIVITY ; ORGANIC-CARBON ; CLIMATE-CHANGE ; PERMAFROST ; NITROGEN ; GRASSLANDS ; TOPSOIL ; SEQUESTRATION ; DEPOSITION ; DYNAMICS |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001208539100001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/204826]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 4.Univ Copenhagen, Dept Geosci & Nat Resource Management, DK-1350 Copenhagen, Denmark 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Wenjuan,Zhao, Guang,Zhao, Bo,et al. Decadal soil total carbon loss in northern hinterland of Tibetan Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,922:171190. |
| APA | Wu, Wenjuan.,Zhao, Guang.,Zhao, Bo.,Zheng, Zhoutao.,He, Yunlong.,...&Zhang, Yangjian.(2024).Decadal soil total carbon loss in northern hinterland of Tibetan Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,922,171190. |
| MLA | Wu, Wenjuan,et al."Decadal soil total carbon loss in northern hinterland of Tibetan Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 922(2024):171190. |
入库方式： OAI收割
来源：地理科学与资源研究所
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