A global map of wood density

作者：Fabian Jörg Fischer, Jérôme Chave, Amy E. Zanne, Tommaso Jucker, Alex Fajardo, Adeline Fayolle, Renato A. Ferreira de Lima, Ghislain Vieilledent, Hans Beeckman, Wannes Hubau, Tom De Mil, Daniel Wallenus, Ana M. Aldana, Esteban Álvarez‐Dávila, Luciana F. Alves, Deborah M. G. Apgaua, Fátima A. Arcanjo, Jean‐François Bastin, Andrii Bilous, Philippe Birnbaum, Volodymyr Blyshchyk, Joli R. Borah, Vanessa Boukili, J. Julio Camarero, Luisa Fernanda Casas, Roberto Cazzolla Gatti, Jeffrey Q. Chambers, Ezequiel Fabiano, Brendan Choat, Edgar Cifuentes, Georgina Conti, David A. Coomes, William K. Cornwell, Javid Ahmad Dar, Ashesh Kumar Das, Magnus Dobler, Dao Dougabka, David P. Edwards, Urs Eggli, Robert D. Evans, Daniel S. Falster, Philip M. Fearnside, Olivier Flores, Nikolaos M. Fyllas, Jean Gérard, Rosa C. Goodman, Daniel Guibal, L. Francisco Henao‐Díaz, Vincent Hervé, Peter Hietz, Jürgen Homeier, Thomas Ibanez, J. Ilic, Steven Jansen, Rinku Moni Kalita, Tanaka Kenzo, Liana Kindermann, S. Kothandaraman, Martyna M. Kotowska, Yasuhiro Kubota, Patrick Langbour, James R. Lawson, André Luiz Alves de Lima, Roman M. Link, Anja Linstädter, Rosana López, Cate Macinnis‐Ng, Luiz Fernando Silva Magnago, Adam R. Martin, Ashley M. Matheny, James K. McCarthy, Regis B. Miller, Arun Jyoti Nath, Bruce Nelson, Marco Andrew Njana, Euler Melo Nogueira, Alexandre A. Oliveira, Rafael Oliveira, Mark E. Olson, Yusuke Onoda, Keryn I. Paul, Daniel Piotto, Phil Radtke, Onja H. Razafindratsima, Tahiana Ramananantoandro, Jennifer Read, Sarah J. Richardson, Enrique G. de la Riva, Oris Rodríguez-Reyes, Samir Rolim, Víctor Rolo, Julieta A. Rosell, Sassan Saatchi, Roberto Salguero‐Gómez, Nadia S. Santini, Bernhard Schuldt, Luitgard Schwendenmann, Arne Sellin, Timothy L. Staples, Pablo R. Stevenson, Somaiah Sundarapandian, Masha T. van der Sande, Hans ter Steege, Shengli Tao, Bernard Thibaut, David Y. P. Tng, José Marcelo Domingues Torezan, Boris Villanueva, Aaron R. Weiskittel, Jessie A. Wells, S. Joseph Wright‬, Kasia Ziemińska, Alexander Zizka · 发表于：bioRxiv (Cold Spring Harbor Laboratory) · 年份：2025 · DOI：10.1101/2025.08.25.671920 · 被引用次数：3 · 研究领域：Tree-ring climate responses、Forest ecology and management、Ecology and Vegetation Dynamics Studies

Abstract Wood density influences how quickly woody plants grow, how long they live and how much carbon they store, yet its global variation remains poorly mapped. Here we combined 109,626 wood density measurements from 16,829 species with 300,949 vegetation plots to produce a km-scale map of community-weighted wood density for every woody biome. Our model led to a prediction accuracy 32–51 % higher than previous global products, and a 1.8–3.7-fold wider wood density range (0.28–1.00 g cm −3 ; global mean: 0.57 g cm −3 ) than previously assumed. Spatial cross-validation showed low bias (±2.5 % of the mean), and uncertainties decreased from 20% in poorly sampled drylands and boreal regions to 5% in data-rich temperate forests. Mean annual temperature was the best predictor of community-weighted mean wood density, increasing by 0.01 g cm −3 for every 1°C change. We deliver a low-bias, high-resolution wood density layer for Earth system models, together with spatially explicit error maps. This study represents a major step forward for carbon accounting and trait-based forecasts of vegetation change.