| Literature DB >> 33303610 |
Songhan Wang1,2, Yongguang Zhang3,2,4, Weimin Ju1,2, Jing M Chen1,5, Philippe Ciais6, Alessandro Cescatti7, Jordi Sardans8,9, Ivan A Janssens10, Mousong Wu1,2, Joseph A Berry11, Elliott Campbell12, Marcos Fernández-Martínez10, Ramdane Alkama7, Stephen Sitch13, Pierre Friedlingstein14, William K Smith15, Wenping Yuan16, Wei He1,2, Danica Lombardozzi17, Markus Kautz18, Dan Zhu6, Sebastian Lienert19, Etsushi Kato20, Benjamin Poulter21, Tanja G M Sanders22, Inken Krüger22, Rong Wang23, Ning Zeng24,25, Hanqin Tian26, Nicolas Vuichard6, Atul K Jain27, Andy Wiltshire13, Vanessa Haverd28, Daniel S Goll6,29, Josep Peñuelas8,9.
Abstract
The enhanced vegetation productivity driven by increased concentrations of carbon dioxide (CO2) [i.e., the CO2 fertilization effect (CFE)] sustains an important negative feedback on climate warming, but the temporal dynamics of CFE remain unclear. Using multiple long-term satellite- and ground-based datasets, we showed that global CFE has declined across most terrestrial regions of the globe from 1982 to 2015, correlating well with changing nutrient concentrations and availability of soil water. Current carbon cycle models also demonstrate a declining CFE trend, albeit one substantially weaker than that from the global observations. This declining trend in the forcing of terrestrial carbon sinks by increasing amounts of atmospheric CO2 implies a weakening negative feedback on the climatic system and increased societal dependence on future strategies to mitigate climate warming.Entities:
Mesh：
Substances：
Year: 2020 PMID： 33303610 DOI： 10.1126/science.abb7772
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728