TY - JOUR A1 - Walker, Anthony P. A1 - De Kauwe, Martin G. A1 - Medlyn, Belinda E. A1 - Zaehle, Sönke A1 - Iversen, Colleen M. A1 - Asao, Shinichi A1 - Guenet, Bertrand A1 - Harper, Anna A1 - Hickler, Thomas A1 - Hungate, Bruce A. A1 - Jain, Atul Kumar A1 - Luo, Yiqi A1 - Lu, Xingjie A1 - Lu, Meng A1 - Luus, Kristina A1 - Megonigal, J. Patrick A1 - Oren, Ram A1 - Ryan, Edmund A1 - Shu, Shijie A1 - Talhelm, Alan A1 - Wang, Ying-Ping A1 - Warren, Jeffrey M. A1 - Werner, Christian A1 - Xia, Jianyang A1 - Yang, Bai A1 - Zak, Donald R. A1 - Norby, Richard J. T1 - Decadal biomass increment in early secondary succession woody ecosystems is increased by CO2 enrichment T2 - Nature Communications N2 - Increasing atmospheric CO2 stimulates photosynthesis which can increase net primary production (NPP), but at longer timescales may not necessarily increase plant biomass. Here we analyse the four decade-long CO2-enrichment experiments in woody ecosystems that measured total NPP and biomass. CO2 enrichment increased biomass increment by 1.05 ± 0.26 kg C m−2 over a full decade, a 29.1 ± 11.7% stimulation of biomass gain in these early-secondary-succession temperate ecosystems. This response is predictable by combining the CO2 response of NPP (0.16 ± 0.03 kg C m−2 y−1) and the CO2-independent, linear slope between biomass increment and cumulative NPP (0.55 ± 0.17). An ensemble of terrestrial ecosystem models fail to predict both terms correctly. Allocation to wood was a driver of across-site, and across-model, response variability and together with CO2-independence of biomass retention highlights the value of understanding drivers of wood allocation under ambient conditions to correctly interpret and predict CO2 responses. KW - Biogeochemistry KW - Carbon cycle KW - Ecosystem ecology KW - Forest ecology Y1 - 2019 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/49146 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-491467 SN - 2041-1723 N1 - Open Access: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. VL - 10 IS - 1, Art. 454 SP - 1 EP - 13 PB - Nature Publishing Group UK CY - [London] ER -