Modeling the carbon dynamics of ecosystem in a typical permafrost area
文献类型：期刊论文
| 作者 | Wang, Yusheng4; Yu, Deyong3,4; Li, Jingwen2; Huang, Ting1 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2024-07-15 |
| 卷号 | 934页码:15 |
| 关键词 | Carbon stocks Permafrost Driving factors Community Land Model |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2024.173204 |
| 产权排序 | 3 |
| 英文摘要 | Climate change poses mounting threats to fragile alpine ecosystem worldwide. Quantifying changes in carbon stocks in response to the shifting climate was important for developing climate change mitigation and adaptation strategies. This study utilized a process-based land model (Community Land Model 5.0) to analyze spatiotemporal variations in vegetation carbon stock (VCS) and soil organic carbon stock (SOCS) across a typical permafrost area - Qinghai Province, China, from 2000 to 2018. Multiple potential factors influencing carbon stocks dynamics were analyzed, including climate, vegetation, soil hydrothermal status, and soil properties. The results indicated that provincial vegetation carbon storage was 0.22 PgC (0.32 kg/m2) and soil organic carbon pool was 9.12 PgC (13.03 kg/m2). VCS showed a mild increase while SOCS exhibited fluctuating uptrends during this period. Higher carbon stocks were observed in forest (21.74 kg/m2) and alpine meadow (18.08 kg/m2) compared to alpine steppes (9.63 kg/m2). Over 90 % of the carbon was stored in the 0-30 cm topsoil layer. The contribution rates of soil carbon in the 30-60 cm and 60-100 cm soil layers were significantly small, despite increasing stocks across all depths. Solar radiation, temperature, and NDVI emerged as primary influential factors for overall carbon stocks, exhibiting noticeable spatial variability. For SOCS at different depths, the normalized differential vegetation index (NDVI) was the foremost predictor of landscape-level carbon distributions, which explained 52.8 % of SOCS variability in shallow layers (0-30 cm) but dropped to just 12.97 % at the depth of 30-60 cm. However, the dominance of NDVI diminished along the soil depth gradients, superseded by radiation and precipitation. Additionally, with an increase in soil depth, the influence of inherent soil properties also increased. This simulation provided crucial insights for landscape-scale carbon responses to climate change, and offered valuable reference for other climate change-sensitive areas in terms of ecosystem carbon management. |
| WOS关键词 | SOIL ORGANIC-CARBON ; COMMUNITY LAND MODEL ; TERRESTRIAL ECOSYSTEMS ; TIBETAN PLATEAU ; TEMPERATURE SENSITIVITY ; ALPINE GRASSLANDS ; TURNOVER TIMES ; CLIMATE-CHANGE ; MATTER ; VEGETATION |
| 资助项目 | Programs of Science and Technology Department of Qinghai Province[2024-ZJ-919] ; Programs of Science and Technology Department of Qinghai Province[2021-SF-A7-1] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK1001] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001298387000001 |
| 出版者 | ELSEVIER |
| 资助机构 | Programs of Science and Technology Department of Qinghai Province ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/208789]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yu, Deyong |
| 作者单位 | 1.Beijing Sch, Beijing 101117, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Qinghai Normal Univ, Key Lab Tibetan Plateau Land Surface Proc & Ecol C, Minist Educ, Xining 810016, Peoples R China 4.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol E, Beijing 100875, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yusheng,Yu, Deyong,Li, Jingwen,et al. Modeling the carbon dynamics of ecosystem in a typical permafrost area[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,934:15. |
| APA | Wang, Yusheng,Yu, Deyong,Li, Jingwen,&Huang, Ting.(2024).Modeling the carbon dynamics of ecosystem in a typical permafrost area.SCIENCE OF THE TOTAL ENVIRONMENT,934,15. |
| MLA | Wang, Yusheng,et al."Modeling the carbon dynamics of ecosystem in a typical permafrost area".SCIENCE OF THE TOTAL ENVIRONMENT 934(2024):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。