作者
Mengtian Huang, Shilong Piao, Philippe Ciais, Josep Peñuelas, Xuhui Wang, Trevor F Keenan, Shushi Peng, Joseph A Berry, Kai Wang, Jiafu Mao, Ramdane Alkama, Alessandro Cescatti, Matthias Cuntz, Hannes De Deurwaerder, Mengdi Gao, Yue He, Yongwen Liu, Yiqi Luo, Ranga B Myneni, Shuli Niu, Xiaoying Shi, Wenping Yuan, Hans Verbeeck, Tao Wang, Jin Wu, Ivan A Janssens
发表日期
2019/5
期刊
Nature ecology & evolution
卷号
3
期号
5
页码范围
772-779
出版商
Nature Publishing Group UK
简介
The global distribution of the optimum air temperature for ecosystem-level gross primary productivity () 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. is consistently lower than the physiological optimum temperature of leaf-level photosynthetic capacity, which typically exceeds 30 °C. The global average is estimated to be 23 ± 6 °C, with warmer regions having higher values than colder regions. In tropical forests in particular, 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.
学术搜索中的文章
M Huang, S Piao, P Ciais, J Peñuelas, X Wang… - Nature ecology & evolution, 2019