Global Evidence of the Unimodal Response of Ecosystem Respiration to Soil Moisture
文献类型：期刊论文
| 作者 | Peng, Jinlong1,2; Xie, Shudi1,2; Tang, Jiwang1,2; Liao, Jiaqiang1,2; Chen, Chen1,2; Sun, Chuanlian2,3; Wang, Yiheng1,2; Zhou, Qingping4; Yu, Guirui1,2; Niu, Shuli1,2 |
| 刊名 | ADVANCED SCIENCE
 |
| 出版日期 | 2025-10-30 |
| 卷号 | N/A |
| 关键词 | carbon ecosystem optimality respiration soil moisture |
| DOI | 10.1002/advs.202509753 |
| 产权排序 | 1 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | Ecosystem respiration (ER) is the largest flux of carbon from land to the atmosphere and is strongly influenced by soil moisture. Nevertheless, the response of ER to soil moisture remains poorly understood. Here, the ER-soil moisture response curves at 135 sites from the global FLUXNET are analyzed. In contrast to the typically assumed monotonic increase in respiratory carbon emissions with increasing soil moisture derived from land surface models, the study shows that 106 sites exhibit a unimodal soil moisture response with a peak in ER at an apparent optimum soil moisture (SMER opt), implying a prevalent inhibitory effect of soil moisture excess on ER. Among the 12 biotic and abiotic variables examined, the SMER opt is mostly related to local water availability, with drier sites showing lower SMER opt than wetter sites, possibly reflecting water adaptation of ER. This adaptation is further supported by a field experiment that exclusively manipulates water and holds other factors constant, showing a downward shift in SMER opt after long-term water deficit. These results reveal the large variation of SMER opt and the water adaptation of ER, providing novel insights for understanding and forecasting carbon-climate feedbacks. |
| URL标识 | 查看原文 |
| WOS关键词 | HETEROTROPHIC RESPIRATION ; PRODUCTIVITY ; TEMPERATURE ; SENSITIVITY ; FEEDBACKS ; EXCHANGE ; INCREASE ; IMPACT ; WATER ; LAND |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001605045400001 |
| 出版者 | WILEY |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/217816]  |
| 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 | Niu, Shuli |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China; 4.Southwest Minzu Univ, Inst Qinghai Tibetan Plateau, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng, Jinlong,Xie, Shudi,Tang, Jiwang,et al. Global Evidence of the Unimodal Response of Ecosystem Respiration to Soil Moisture[J]. ADVANCED SCIENCE,2025,N/A. |
| APA | Peng, Jinlong.,Xie, Shudi.,Tang, Jiwang.,Liao, Jiaqiang.,Chen, Chen.,...&Niu, Shuli.(2025).Global Evidence of the Unimodal Response of Ecosystem Respiration to Soil Moisture.ADVANCED SCIENCE,N/A. |
| MLA | Peng, Jinlong,et al."Global Evidence of the Unimodal Response of Ecosystem Respiration to Soil Moisture".ADVANCED SCIENCE N/A(2025). |
入库方式： OAI收割
来源：地理科学与资源研究所
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