Advanced precipitation peak offsets middle growing-season drought in impacting grassland C sink
文献类型：期刊论文
| 作者 | Ru, Jingyi6; Wan, Shiqiang6; Xia, Jianyang4,5; Niu, Shuli2,3; Hui, Dafeng1; Song, Jian6; Feng, Jiayin6; Sun, Dasheng6; Wang, Haidao6; Qiu, Xueli6 |
| 刊名 | NEW PHYTOLOGIST
 |
| 出版日期 | 2024-09-20 |
| 卷号 | N/A页码:13 |
| 关键词 | climate change community composition plants precipitation seasonality productivity semi-arid ecosystem water availability |
| ISSN号 | 0028-646X |
| DOI | 10.1111/nph.20144 |
| 产权排序 | 4 |
| 英文摘要 | Redistribution of precipitation across seasons is a widespread phenomenon affecting dryland ecosystems globally. However, the impacts of shifting seasonal precipitation patterns on carbon (C) cycling and sequestration in dryland ecosystems remain poorly understood. In this study, we conducted a 10-yr (2013-2022) field manipulative experiment that altered the timing of growing-season precipitation peaks in a semi-arid grassland. We found that the delayed precipitation peak suppressed plant growth and thus reduced gross ecosystem productivity, ecosystem respiration, and net ecosystem productivity due to middle growing-season water stress. Surprisingly, shifting more precipitation to the early growing season can advance plant development, increase the dominance of drought-tolerant forbs, and thus compensate for the negative impacts of middle growing-season water stress on ecosystem C cycling, leading to a neutral change in grassland C sink. Our findings indicate that greater precipitation and plant development in spring could act as a crucial mechanism, maintaining plant growth and stabilizing ecosystem C sink. This underscores the urgent need to incorporate precipitation seasonality into Earth system models, which is crucial for improving projections of terrestrial C cycling and sequestration under future climate change scenarios. |
| WOS关键词 | SEMIARID ECOSYSTEMS ; CLIMATE-CHANGE ; PRODUCTIVITY ; RESPONSES ; RESPIRATION ; VARIABILITY ; SENSITIVITY |
| 资助项目 | National Natural Science Foundation of China ; Hebei Natural Science Foundation[C2022201042] ; Collaborative Innovation Center for Baiyangdian Basin Ecological Protection and Beijing-Tianjin-Hebei Sustainable Development ; [31830012] |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001315857100001 |
| 出版者 | WILEY |
| 资助机构 | National Natural Science Foundation of China ; Hebei Natural Science Foundation ; Collaborative Innovation Center for Baiyangdian Basin Ecological Protection and Beijing-Tianjin-Hebei Sustainable Development |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/208349]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Wan, Shiqiang |
| 作者单位 | 1.Tennessee State Univ, Dept Biol Sci, Nashville, TN 37209 USA 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 4.East China Normal Univ, Inst Ecochongming, Res Ctr Global Change & Complex Ecosyst, Shanghai 200241, Peoples R China 5.East China Normal Univ, Sch Ecol & Environm Sci, State Key Lab Estuarine & Coastal Res, Zhejiang Tiantong Forest Ecosyst Natl Observat & R, Shanghai 200241, Peoples R China 6.Hebei Univ, Inst Life Sci & Green Dev, Hebei Basic Sci Ctr Biot Interact, Sch Life Sci, Baoding 071002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ru, Jingyi,Wan, Shiqiang,Xia, Jianyang,et al. Advanced precipitation peak offsets middle growing-season drought in impacting grassland C sink[J]. NEW PHYTOLOGIST,2024,N/A:13. |
| APA | Ru, Jingyi.,Wan, Shiqiang.,Xia, Jianyang.,Niu, Shuli.,Hui, Dafeng.,...&Qiu, Xueli.(2024).Advanced precipitation peak offsets middle growing-season drought in impacting grassland C sink.NEW PHYTOLOGIST,N/A,13. |
| MLA | Ru, Jingyi,et al."Advanced precipitation peak offsets middle growing-season drought in impacting grassland C sink".NEW PHYTOLOGIST N/A(2024):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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