Air temperature optima of vegetation productivity across global biomes.
Mengtian Huang
(1)
,
Shilong Piao
(1, 2)
,
Philippe Ciais
(3, 4)
,
Josep Peñuelas
(5, 6)
,
Xuhui Wang
(1)
,
Trevor F Keenan
(7)
,
Shushi Peng
(1)
,
Joseph A Berry
(8)
,
Kai Wang
(1)
,
Jiafu Mao
(9)
,
Ramdane Alkama
(10)
,
Alessandro Cescatti
(10)
,
Matthias Cuntz
(11)
,
Hannes de Deurwaerder
(12)
,
Mengdi Gao
(1)
,
Yue He
(1)
,
Yongwen Liu
(1)
,
Yiqi Luo
(13)
,
Ranga B Myneni
(14)
,
Shuli Niu
(2)
,
Xiaoying Shi
(9)
,
Wenping Yuan
(15)
,
Hans Verbeeck
(12)
,
Tao Wang
(2)
,
Jin Wu
(16, 17)
,
Ivan A Janssens
(18)
1
Peking University [Beijing]
2 Chinese Academy of Sciences
3 LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]
4 ICOS-ATC - ICOS-ATC
5 Centre for Research on Ecology and Forestry Applications
6 Consejo Superior de Investigaciones Científicas
7 UC Berkeley - University of California [Berkeley]
8 DGE - Department of Global Ecology [Carnegie]
9 ORNL - Oak Ridge National Laboratory [Oak Ridge]
10 JRC - European Commission - Joint Research Centre [Ispra]
11 SILVA - SILVA
12 UGENT - Universiteit Gent = Ghent University = Université de Gand
13 Northern Arizona University [Flagstaff]
14 BU - Boston University [Boston]
15 SYSU - Sun Yat-sen University [Guangzhou]
16 BNL - Brookhaven National Laboratory [Upton, NY]
17 University of Hong Kong
18 UA - University of Antwerp
2 Chinese Academy of Sciences
3 LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]
4 ICOS-ATC - ICOS-ATC
5 Centre for Research on Ecology and Forestry Applications
6 Consejo Superior de Investigaciones Científicas
7 UC Berkeley - University of California [Berkeley]
8 DGE - Department of Global Ecology [Carnegie]
9 ORNL - Oak Ridge National Laboratory [Oak Ridge]
10 JRC - European Commission - Joint Research Centre [Ispra]
11 SILVA - SILVA
12 UGENT - Universiteit Gent = Ghent University = Université de Gand
13 Northern Arizona University [Flagstaff]
14 BU - Boston University [Boston]
15 SYSU - Sun Yat-sen University [Guangzhou]
16 BNL - Brookhaven National Laboratory [Upton, NY]
17 University of Hong Kong
18 UA - University of Antwerp
Shilong Piao
- Fonction : Auteur
- PersonId : 760330
- ORCID : 0000-0001-8057-2292
Philippe Ciais
- Fonction : Auteur
- PersonId : 756308
- ORCID : 0000-0001-8560-4943
- IdRef : 092241700
Josep Peñuelas
- Fonction : Auteur
- PersonId : 765109
- ORCID : 0000-0002-7215-0150
Xuhui Wang
- Fonction : Auteur
- PersonId : 775743
- ORCID : 0000-0003-0818-9816
Shushi Peng
- Fonction : Auteur
- PersonId : 770092
- ORCID : 0000-0001-5098-726X
Kai Wang
- Fonction : Auteur
- PersonId : 763158
- ORCID : 0000-0001-6269-3517
Jiafu Mao
- Fonction : Auteur
- PersonId : 783795
- ORCID : 0000-0002-2050-7373
Ramdane Alkama
- Fonction : Auteur
- PersonId : 767459
- ORCID : 0000-0001-9864-2084
Alessandro Cescatti
- Fonction : Auteur
- PersonId : 768433
- ORCID : 0000-0002-2769-2591
Matthias Cuntz
- Fonction : Auteur
- PersonId : 737030
- IdHAL : mcuntzinrae
- ORCID : 0000-0002-5966-1829
- IdRef : 189761067
Hannes de Deurwaerder
- Fonction : Auteur
- PersonId : 982664
Xiaoying Shi
- Fonction : Auteur
- PersonId : 783796
- ORCID : 0000-0001-8994-5032
Wenping Yuan
- Fonction : Auteur
- PersonId : 783318
- ORCID : 0000-0002-1469-4395
Hans Verbeeck
- Fonction : Auteur
- PersonId : 769850
- ORCID : 0000-0003-1490-0168
Tao Wang
- Fonction : Auteur
- PersonId : 802259
- ORCID : 0000-0002-4765-9377
Jin Wu
- Fonction : Auteur
- PersonId : 759367
- ORCID : 0000-0001-8991-3970
Résumé
The global distribution of the optimum air temperature for ecosystem-level gross primary productivity ([Formula: see text]) is poorly understood, despite its importance for ecosystem carbon uptake under future warming. We provide empirical evidence for the existence of such an optimum, using measurements of in situ eddy covariance and satellite-derived proxies, and report its global distribution. [Formula: see text] is consistently lower than the physiological optimum temperature of leaf-level photosynthetic capacity, which typically exceeds 30 °C. The global average [Formula: see text] is estimated to be 23 ± 6 °C, with warmer regions having higher [Formula: see text] values than colder regions. In tropical forests in particular, [Formula: see text] is close to growing-season air temperature and is projected to fall below it under all scenarios of future climate, suggesting a limited safe operating space for these ecosystems under future warming.