| Title | Warming homogenizes apparent temperature sensitivity of ecosystem respiration |
| Authors | Niu, Ben Zhang, Xianzhou Piao, Shilong Janssens, Ivan A. Fu, Gang He, Yongtao Zhang, Yangjian Shi, Peili Dai, Erfu Yu, Chengqun Zhang, Jing Yu, Guirui Xu, Ming Wu, Jianshuang Zhu, Liping Desai, Ankur R. Chen, Jiquan Bohrer, Gil Gough, Christopher M. Mammarella, Ivan Varlagin, Andrej Fares, Silvano Zhao, Xinquan Li, Yingnian Wang, Huiming Ouyang, Zhu |
| Affiliation | Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China Univ Chinese Acad Sci, Beijing 100049, Peoples R China Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China Univ Antwerp, Dept Biol, Univ Pl 1, B-2610 Antwerp, Belgium Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing 100875, Peoples R China Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI 53706 USA Michigan State Univ, Dept Geog, E Lansing, MI 48823 USA Ohio State Univ, Dept Civil Environm & Geodet Engn, Columbus, OH 43210 USA Virginia Commonwealth Univ, Dept Biol, Richmond, VA 23284 USA Univ Helsinki, Fac Sci, Inst Atmospher & Earth Syst Res Phys, POB 68, FI-00014 Helsinki, Finland Russian Acad Sci, AN Severtsov Inst Ecol & Evolut, Moscow 119071, Russia Natl Res Council Italy, Inst BioEcon, Via Taurini 19, I-00100 Rome, Italy Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810001, Peoples R China |
| Issue Date | Apr-2021 |
| Publisher | SCIENCE ADVANCES |
| Abstract | Warming-induced carbon loss through terrestrial ecosystem respiration (Re) is likely getting stronger in high latitudes and cold regions because of the more rapid warming and higher temperature sensitivity of Re (Q(10)). However, it is not known whether the spatial relationship between Q(10) and temperature also holds temporally under a future warmer climate. Here, we analyzed apparent Q(10) values derived from multiyear observations at 74 FLUXNET sites spanning diverse climates and biomes. We found warming-induced decline in Q(10) is stronger at colder regions than other locations, which is consistent with a meta-analysis of 54 field warming experiments across the globe. We predict future warming will shrink the global variability of Q(10) values to an average of 1.44 across the globe under a high emission trajectory (RCP 8.5) by the end of the century. Therefore, warming-induced carbon loss may be less than previously assumed because of Q(10) homogenization in a warming world. |
| URI | http://hdl.handle.net/20.500.11897/611789 |
| ISSN | 2375-2548 |
| DOI | 10.1126/sciadv.abc7358 |
| Indexed | SCI(E) |
| Appears in Collections: | 城市与环境学院 |
