Widespread enhancement of ecosystem carbon fluxes during post moisture pulse
文献类型：期刊论文
| 作者 | Bai, Yu3; Zhang, Fangyue2; Ciais, Philippe1; Wigneron, Jean-Pierre15; Feldman, Andrew F.13,14; Gentine, Pierre12; Smith, William K.11; Biederman, Joel A.10; Scott, Russell L.10; Stoy, Paul C.9 |
| 刊名 | COMMUNICATIONS EARTH & ENVIRONMENT
 |
| 出版日期 | 2026-01-14 |
| 卷号 | 7期号:1页码:171 |
| DOI | 10.1038/s43247-026-03191-x |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Rainfall pulses generate rapid increases and subsequent declines in soil moisture (SM), yet global ecosystem responses during SM dry-downs remain poorly quantified. Using 6502 soil dry-down events identified from global eddy-covariance observations, we compared carbon fluxes during dry-downs (treatment) to fluxes during the same periods without dry-downs in other years (control). During early dry-downs days, gross primary production (GPP) and respiration both exceeded controls, with stronger GPP gains enhancing net carbon uptake. This enhancement persisted for several days before diminishing as SM decreased and atmospheric dryness intensified. Latent and sensible heat fluxes also rose initially, but latent heat enhancement weakened over time, accompanied by enhanced sensible heat. Machine-learning analyses show that photosynthetic capacity and radiation drive positive GPP anomalies, while water limitations induce negative ones. Satellite data supported these patterns, whereas Earth system models underestimate their magnitude. These findings highlight transient pulse responses and support the broader applicability of the pulse-reserve paradigm. |
| URL标识 | 查看原文 |
| WOS关键词 | FLUORESCENCE DATASET ; WATER ; PRECIPITATION ; VEGETATION ; DROUGHT ; RESPONSES ; RESERVE ; DRY |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001693239400002 |
| 出版者 | SPRINGERNATURE |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221080]  |
| 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 | Zhang, Fangyue; Fu, Zheng |
| 作者单位 | 1.Univ Paris Saclay, Lab Sci Climat & Environm, IPSL, CEA,CNRS,UVSQ, Gif Sur Yvette, France; 2.Beijing Normal Univ, Coll Water Sci, Beijing, Peoples R China; 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China; 4.CUNY, Grad Ctr, Earth & Environm Sci Dept, New York, NY USA 5.CUNY, Queens Coll, Sch Earth & Environm Sci, Flushing, NY USA; 6.Univ Paris Saclay, Unit Appl Math & Comp Sci UMR MIA PS, INRAE AgroParisTech, Palaiseau, France; 7.Penn State Univ, Dept Plant Sci, University Pk, PA USA; 8.Weizmann Inst Sci, Earth & Planetary Sci, Rehovot, Israel; 9.Univ Wisconsin, Dept Biol Syst Engn, Madison, WI USA; 10.USDA ARS, Southwest Watershed Res Ctr, Tucson, AZ USA; |
| 推荐引用方式 GB/T 7714 | Bai, Yu,Zhang, Fangyue,Ciais, Philippe,et al. Widespread enhancement of ecosystem carbon fluxes during post moisture pulse[J]. COMMUNICATIONS EARTH & ENVIRONMENT,2026,7(1):171. |
| APA | Bai, Yu.,Zhang, Fangyue.,Ciais, Philippe.,Wigneron, Jean-Pierre.,Feldman, Andrew F..,...&Fu, Zheng.(2026).Widespread enhancement of ecosystem carbon fluxes during post moisture pulse.COMMUNICATIONS EARTH & ENVIRONMENT,7(1),171. |
| MLA | Bai, Yu,et al."Widespread enhancement of ecosystem carbon fluxes during post moisture pulse".COMMUNICATIONS EARTH & ENVIRONMENT 7.1(2026):171. |
入库方式： OAI收割
来源：地理科学与资源研究所
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