作者
Wannes Hubau, Tom De Mil, Jan Van den Bulcke, Oliver L Phillips, Bhély Angoboy Ilondea, Joris Van Acker, Martin JP Sullivan, Laurent Nsenga, Benjamin Toirambe, Camille Couralet, Lindsay F Banin, Serge K Begne, Timothy R Baker, Nils Bourland, Eric Chezeaux, Connie J Clark, Murray Collins, James A Comiskey, Aida Cuni-Sanchez, Victor Deklerck, Sofie Dierickx, Jean-Louis Doucet, Corneille EN Ewango, Ted R Feldpausch, Martin Gilpin, Christelle Gonmadje, Jefferson S Hall, David J Harris, Olivier J Hardy, Marie-Noel D Kamdem, Emmanuel Kasongo Yakusu, Gabriela Lopez-Gonzalez, Jean-Remy Makana, Yadvinder Malhi, Faustin M Mbayu, Sam Moore, Jacques Mukinzi, Georgia Pickavance, John R Poulsen, Jan Reitsma, Mélissa Rousseau, Bonaventure Sonké, Terry Sunderland, Hermann Taedoumg, Joey Talbot, John Tshibamba Mukendi, Peter M Umunay, Jason Vleminckx, Lee JT White, Lise Zemagho, Simon L Lewis, Hans Beeckman
发表日期
2019/2
期刊
Nature Plants
卷号
5
期号
2
页码范围
133-140
出版商
Nature Publishing Group UK
简介
Quantifying carbon dynamics in forests is critical for understanding their role in long-term climate regulation, , –. Yet little is known about tree longevity in tropical forests,, , –, a factor that is vital for estimating carbon persistence,. Here we calculate mean carbon age (the period that carbon is fixed in trees) in different strata of African tropical forests using (1) growth-ring records with a unique timestamp accurately demarcating 66 years of growth in one site and (2) measurements of diameter increments from the African Tropical Rainforest Observation Network (23 sites). We find that in spite of their much smaller size, in understory trees mean carbon age (74 years) is greater than in sub-canopy (54 years) and canopy (57 years) trees and similar to carbon age in emergent trees (66 years). The remarkable carbon longevity in the understory results from slow and aperiodic growth as an adaptation to limited resource …
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W Hubau, T De Mil, J Van den Bulcke, OL Phillips… - Nature Plants, 2019