Air temperature optima of vegetation productivity across global biomes

被引：448

作者：

Huang, Mengtian ^{[1
]}

Piao, Shilong ^{[1
,2
,3
]}

Ciais, Philippe ^{[4
]}

Penuelas, Josep ^{[5
,6
]}

Wang, Xuhui ^{[1
]}

Keenan, Trevor F. ^{[7
,8
]}

Peng, Shushi ^{[1
]}

Berry, Joseph A. ^{[9
]}

Wang, Kai ^{[1
]}

Mao, Jiafu ^{[10
,11
]}

Alkama, Ramdane ^{[12
]}

Cescatti, Alessandro ^{[12
]}

Cuntz, Matthias ^{[13
]}

De Deurwaerder, Hannes ^{[14
]}

Gao, Mengdi ^{[1
]}

He, Yue ^{[1
]}

Liu, Yongwen ^{[1
]}

Luo, Yiqi ^{[15
]}

Myneni, Ranga B. ^{[16
]}

Niu, Shuli ^{[17
]}

Shi, Xiaoying ^{[10
,11
]}

Yuan, Wenping ^{[18
]}

Verbeeck, Hans ^{[14
]}

Wang, Tao ^{[2
,3
]}

Wu, Jin ^{[19
,20
]}

Janssens, Ivan A. ^{[21
]}

机构：

[1] Peking Univ, Sinofrench Inst Earth Syst Sci, Beijing, Peoples R China

[2] Chinese Acad Sci, Key Lab Alpine Ecol & Biodivers, Beijing, Peoples R China

[3] Chinese Acad Sci, Ctr Excellence Tibetan Earth Sci, Beijing, Peoples R China

[4] Lab Sci Climat & Environm, Gif Sur Yvette, France

[5] Ctr Res Ecol & Forestry Applicat, Barcelona, Spain

[6] CSIC, Global Ecol Unit CREAF CSIC UAB, Barcelona, Spain

[7] Lawrence Berkeley Natl Lab, Berkeley, CA USA

[8] Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA USA

[9] Carnegie Inst Sci, Dept Global Ecol, Stanford, CA USA

[10] Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN USA

[11] Oak Ridge Natl Lab, Environm Sci Div, Oak Ridge, TN USA

[12] European Commiss, Joint Res Ctr, Ispra, Italy

[13] Univ Lorraine, INRA, AgroParisTech, UMR Silva, Nancy, France

[14] Univ Ghent, CAVElab Computat & Appl Vegetat Ecol, Ghent, Belgium

[15] No Arizona Univ, Dept Biol Sci, Box 5640, Flagstaff, AZ 86011 USA

[16] Boston Univ, Dept Earth & Environm, Boston, MA 02215 USA

[17] Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China

[18] Sun Yat Sen Univ, Sch Atmospher Sci, Guangzhou, Guangdong, Peoples R China

[19] Brookhaven Natl Lab, Environm & Climate Sci Dept, Upton, NY 11973 USA

[20] Univ Hong Kong, Sch Biol Sci, Pokfulam, Hong Kong, Peoples R China

[21] Univ Antwerp, Ctr Excellence Plants & Vegetat Ecol, Antwerp, Belgium

来源：

NATURE ECOLOGY & EVOLUTION | 2019年 / 3卷 / 05期

基金：

欧洲研究理事会; 中国国家自然科学基金; 美国国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

LAND-SURFACE TEMPERATURE; NET ECOSYSTEM EXCHANGE; LEAF-AREA INDEX; CARBON-DIOXIDE; CLIMATE-CHANGE; PHOTOSYNTHETIC ACCLIMATION; THERMAL-ACCLIMATION; LARREA-DIVARICATA; BIOCHEMICAL-MODEL; DESERT SHRUB;

D O I：

10.1038/s41559-019-0838-x

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

The global distribution of the optimum air temperature for ecosystem-level gross primary productivity (T-opt(eco))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. T-opt(eco) is consistently lower than the physiological optimum temperature of leaf-level photosynthetic capacity, which typically exceeds 30 degrees C. The global average T-opt(eco) is estimated to be 23 +/- 6 degrees C, with warmer regions having higher T-opt(eco) values than colder regions. In tropical forests in particular, T-opt(eco) 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.

引用

页码：772 / 779

页数：8

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