Soil moisture dominates the interannual variability in alpine ecosystem productivity by regulating maximum photosynthetic capacity across the Qinghai-Tibetan Plateau
文献类型：期刊论文
| 作者 | Zhang, Tao; Tang, Yuanyuan; Xu, Mingjie; Zhao, Guang; Cong, Nan; Zheng, Zhoutao; Zhu, Juntao; Niu, Ben; Chen, Zhi; Zhang, Yangjian |
| 刊名 | GLOBAL AND PLANETARY CHANGE
 |
| 出版日期 | 2023-09-01 |
| 卷号 | 228页码:104191 |
| ISSN号 | 0921-8181 |
| 关键词 | Climate change Phenology Physiology Carbon flux Grassland |
| DOI | 10.1016/j.gloplacha.2023.104191 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | The alpine ecosystems on the Qinghai-Tibetan Plateau are quite sensitive to climate change. The increasing temperature and changing precipitation patterns greatly affect the gross primary productivity (GPP) and disturb the carbon balances of these alpine ecosystems. To clarify the impacts of future climate change across the Qinghai-Tibetan Plateau, it is important to address the scientific issue Which factor would dominate interannual variability (IAV) in GPP and through which path does it work? To clarify this issue, two key processes, growing season length (GSL) and maximum photosynthetic capacity (GPPmax), were introduced to reveal the underlying mechanisms, and which of the environmental factors dominated their variations were studied specifically based on the flux and corresponding environmental observation data obtained in different types of alpine ecosystems across the Qinghai-Tibetan Plateau in this study. The results indicated that across the temperature- and waterlimited alpine ecosystems, the temperature controlled the GSL, but the water conditions dominated the variations in GPPmax. The soil water content (SWC) dominated GPPmax, which could explain 89% of the variation in GPPmax. The GSL alone was incapable of explaining IAV in GPP. Conversely, GPPmax is robust in explaining IAV in GPP, which could explain 94% of the annual GPP. Therefore, climate change would probably drive IAV in GPP through the path of SWC -* GPPmax -* annual GPP on the Qinghai-Tibetan Plateau. In addition, GPPmax together with GSL (GSL x GPPmax) could explain 99% of IAV in GPP, as they indicated the length of the carbon uptake time and the capacity of carbon sequestration, respectively. This study provides a new perspective on the predominant causes of IAV in GPP in alpine ecosystems, indicating that the changing precipitation patterns under future climate change will play a dominant role in affecting the carbon sink function of the Qinghai-Tibetan Plateau. |
| WOS关键词 | GROSS PRIMARY PRODUCTIVITY ; DELAYED SPRING PHENOLOGY ; NET CARBON UPTAKE ; CLIMATE-CHANGE ; GRASSLAND ECOSYSTEMS ; AUTUMN PHENOLOGY ; PLANT PHENOLOGY ; IMPACTS ; FLUXES ; TEMPERATE |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001049498200001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/194509]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Institute of Geographic Sciences & Natural Resources Research, CAS 2.Northeast Institute of Geography & Agroecology, CAS 3.University of Chinese Academy of Sciences, CAS 4.Shenyang Agricultural University 5.Chinese Academy of Sciences |
| 推荐引用方式 GB/T 7714 | Zhang, Tao,Tang, Yuanyuan,Xu, Mingjie,et al. Soil moisture dominates the interannual variability in alpine ecosystem productivity by regulating maximum photosynthetic capacity across the Qinghai-Tibetan Plateau[J]. GLOBAL AND PLANETARY CHANGE,2023,228:104191. |
| APA | Zhang, Tao.,Tang, Yuanyuan.,Xu, Mingjie.,Zhao, Guang.,Cong, Nan.,...&Yu, Guirui.(2023).Soil moisture dominates the interannual variability in alpine ecosystem productivity by regulating maximum photosynthetic capacity across the Qinghai-Tibetan Plateau.GLOBAL AND PLANETARY CHANGE,228,104191. |
| MLA | Zhang, Tao,et al."Soil moisture dominates the interannual variability in alpine ecosystem productivity by regulating maximum photosynthetic capacity across the Qinghai-Tibetan Plateau".GLOBAL AND PLANETARY CHANGE 228(2023):104191. |
入库方式： OAI收割
来源：地理科学与资源研究所
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