Widespread consistent but rapid response of terrestrial ecosystem photosynthesis and respiratory to drought
文献类型：期刊论文
| 作者 | Guo, Wenwen11; Huang, Shengzhi10,11; Liu, Laibao9; Hu, Feilong8; Gao, Liang6,7; Li, Jianfeng5; Huang, Qiang10,11; Huang, Guohe4; Deng, Mingjiang3; Leng, Guoyong2 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2025-08-01 |
| 卷号 | 657页码:133107 |
| 关键词 | Gross primary productivity Ecosystem respiration Drought Response time dynamics |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2025.133107 |
| 产权排序 | 10 |
| 文献子类 | Article |
| 英文摘要 | Drought significantly threatens terrestrial ecosystems health, through influencing both photosynthesis and respiratory processes. However, whether these processes have changed in response to intensified drought and the driving mechanisms remain unclear, even though the inconsistent responses may indicate an increased potential for unstable carbon sinks. The knowledge gap would hinder accurate prediction of the size of China's future terrestrial ecosystems carbon sink under increasing extreme droughts, thus impacting the realization of China's carbon neutrality goal. Here, we combined observational-based data and dynamic global vegetation model data to explore the response time (RT) of Gross Primary Productivity (GPP) and Ecosystem Respiration (TER) to meteorological drought in China and their dynamics over the past 40 years. Results reveal consistent spatial distribution patterns in GPP and TER responses to drought. During 1982-2021, widespread declines in the RT of both GPP and TER to drought were observed, indicating an increased likelihood of vegetation converting from a carbon sink into a carbon source under droughts. GPP responds slightly faster than TER, notably in arid regions influenced by land cover change and climate change. Hotspots of decreasing RT trends, such as the Tibetan Plateau and Yellow River Basin, underscore the diverse impacts of climate and land cover changes. Our findings shed new insights into ecosystem carbon fluxes mechanisms, thus providing accurate carbon budget for China's carbon neutrality goal. |
| URL标识 | 查看原文 |
| WOS关键词 | CLIMATE EXTREMES ; LAND-USE ; TREE MORTALITY ; CARBON UPTAKE ; TIME-SCALES ; CO2 ; VEGETATION ; IMPACTS ; VERSION ; GROWTH |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001450168800001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/213198]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Huang, Shengzhi |
| 作者单位 | 1.Univ Leipzig, Remote Sensing Ctr Earth Syst Res, Talstr 35, D-04103 Leipzig, Germany 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China; 3.Engn Res Ctr Water Resources & Ecol Water Conserva, Urumqi 830011, Peoples R China; 4.Univ Regina, Fac Engn & Appl Sci, Environm Syst Engn Program, Regina, SK S4S 0A2, Canada; 5.Hong Kong Baptist Univ, Dept Geog, Kowloon Tong, Baptist Univ Rd, Hong Kong, Peoples R China; 6.Univ Macau, Dept Ocean Sci & Technol, Zhuhai 999078, Macao, Peoples R China; 7.Univ Macau, State Key Lab Internet Things Smart City, Zhuhai 999078, Macao, Peoples R China; 8.Minist Ecol & Environm, Nanjing Inst Environm Sci, Nanjing, Peoples R China; 9.Univ Hong Kong, Dept Geog, Hong Kong, Peoples R China; 10.North China Univ Water Resources & Elect Power, Sch Water Conservancy, Zhengzhou 450046, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Guo, Wenwen,Huang, Shengzhi,Liu, Laibao,et al. Widespread consistent but rapid response of terrestrial ecosystem photosynthesis and respiratory to drought[J]. JOURNAL OF HYDROLOGY,2025,657:133107. |
| APA | Guo, Wenwen.,Huang, Shengzhi.,Liu, Laibao.,Hu, Feilong.,Gao, Liang.,...&Peng, Jian.(2025).Widespread consistent but rapid response of terrestrial ecosystem photosynthesis and respiratory to drought.JOURNAL OF HYDROLOGY,657,133107. |
| MLA | Guo, Wenwen,et al."Widespread consistent but rapid response of terrestrial ecosystem photosynthesis and respiratory to drought".JOURNAL OF HYDROLOGY 657(2025):133107. |
入库方式： OAI收割
来源：地理科学与资源研究所
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