Global vegetation biomass production efficiency constrained by models and observations
Yue He, Shushi Peng, Yongwen Liu, Xiangyi Li, Kai Wang, Philippe Ciais, M. Altaf Arain, Yuanyuan Fang, Joshua B. Fisher, Daniel S. Goll, Daniel J. Hayes, D. N. Huntzinger, Akihiko Ito, Atul K. Jain, Ivan A. Janssens, Jiafu Mao, Matteo Campioli, A. M. Michalak, Changhui Peng, Josep Peñuelas, Benjamin Poulter, Dahe Qin, D. M. Ricciuto, Kevin Schaefer, Christopher R. Schwalm, Xiaoying Shi, Hanqin Tian, Sara Vicca, Yaxing Wei, Ning Zeng, Qiuan Zhu
Abstract
Plants use only a fraction of their photosynthetically derived carbon for biomass production (BP). The biomass production efficiency (BPE), defined as the ratio of BP to photosynthesis, and its variation across and within vegetation types is poorly understood, which hinders our capacity to accurately estimate carbon turnover times and carbon sinks. Here, we present a new global estimation of BPE obtained by combining field measurements from 113 sites with 14 carbon cycle models. Our best estimate of global BPE is 0.41 ± 0.05, excluding cropland. The largest BPE is found in boreal forests (0.48 ± 0.06) and the lowest in tropical forests (0.40 ± 0.04). Carbon cycle models overestimate BPE, although models with carbon-nitrogen interactions tend to be more realistic. Using observation-based estimates of global photosynthesis, we quantify the global BP of non-cropland ecosystems of 41 ± 6 Pg C/year. This flux is less than net primary production as it does not contain carbon allocated to symbionts, used for exudates or volatile carbon compound emissions to the atmosphere. Our study reveals a positive bias of 24 ± 11% in the model-estimated BP (10 of 14 models). When correcting models for this bias while leaving modeled carbon turnover times unchanged, we found that the global ecosystem carbon storage change during the last century is decreased by 67% (or 58 Pg C).- Cite:
- Yue He, Shushi Peng, Yongwen Liu, Xiangyi Li, Kai Wang, Philippe Ciais, M. Altaf Arain, Yuanyuan Fang, Joshua B. Fisher, Daniel S. Goll, Daniel J. Hayes, D. N. Huntzinger, Akihiko Ito, Atul K. Jain, Ivan A. Janssens, Jiafu Mao, Matteo Campioli, A. M. Michalak, Changhui Peng, et al.. 2019. Global vegetation biomass production efficiency constrained by models and observations. Global Change Biology, Volume 26, Issue 3, 26(3):1474–1484.
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@article{He-2019-Global,
title = "Global vegetation biomass production efficiency constrained by models and observations",
author = "He, Yue and
Peng, Shushi and
Liu, Yongwen and
Li, Xiangyi and
Wang, Kai and
Ciais, Philippe and
Arain, M. Altaf and
Fang, Yuanyuan and
Fisher, Joshua B. and
Goll, Daniel S. and
Hayes, Daniel J. and
Huntzinger, D. N. and
Ito, Akihiko and
Jain, Atul K. and
Janssens, Ivan A. and
Mao, Jiafu and
Campioli, Matteo and
Michalak, A. M. and
Peng, Changhui and
Pe{\~n}uelas, Josep and
Poulter, Benjamin and
Qin, Dahe and
Ricciuto, D. M. and
Schaefer, Kevin and
Schwalm, Christopher R. and
Shi, Xiaoying and
Tian, Hanqin and
Vicca, Sara and
Wei, Yaxing and
Zeng, Ning and
Zhu, Qiuan",
journal = "Global Change Biology, Volume 26, Issue 3",
volume = "26",
number = "3",
year = "2019",
publisher = "Wiley",
url = "https://gwf-uwaterloo.github.io/gwf-publications/G19-71001",
doi = "10.1111/gcb.14816",
pages = "1474--1484",
abstract = "Plants use only a fraction of their photosynthetically derived carbon for biomass production (BP). The biomass production efficiency (BPE), defined as the ratio of BP to photosynthesis, and its variation across and within vegetation types is poorly understood, which hinders our capacity to accurately estimate carbon turnover times and carbon sinks. Here, we present a new global estimation of BPE obtained by combining field measurements from 113 sites with 14 carbon cycle models. Our best estimate of global BPE is 0.41 {\mbox{$\pm$}} 0.05, excluding cropland. The largest BPE is found in boreal forests (0.48 {\mbox{$\pm$}} 0.06) and the lowest in tropical forests (0.40 {\mbox{$\pm$}} 0.04). Carbon cycle models overestimate BPE, although models with carbon-nitrogen interactions tend to be more realistic. Using observation-based estimates of global photosynthesis, we quantify the global BP of non-cropland ecosystems of 41 {\mbox{$\pm$}} 6 Pg C/year. This flux is less than net primary production as it does not contain carbon allocated to symbionts, used for exudates or volatile carbon compound emissions to the atmosphere. Our study reveals a positive bias of 24 {\mbox{$\pm$}} 11{\%} in the model-estimated BP (10 of 14 models). When correcting models for this bias while leaving modeled carbon turnover times unchanged, we found that the global ecosystem carbon storage change during the last century is decreased by 67{\%} (or 58 Pg C).",
}
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<abstract>Plants use only a fraction of their photosynthetically derived carbon for biomass production (BP). The biomass production efficiency (BPE), defined as the ratio of BP to photosynthesis, and its variation across and within vegetation types is poorly understood, which hinders our capacity to accurately estimate carbon turnover times and carbon sinks. Here, we present a new global estimation of BPE obtained by combining field measurements from 113 sites with 14 carbon cycle models. Our best estimate of global BPE is 0.41 \pm 0.05, excluding cropland. The largest BPE is found in boreal forests (0.48 \pm 0.06) and the lowest in tropical forests (0.40 \pm 0.04). Carbon cycle models overestimate BPE, although models with carbon-nitrogen interactions tend to be more realistic. Using observation-based estimates of global photosynthesis, we quantify the global BP of non-cropland ecosystems of 41 \pm 6 Pg C/year. This flux is less than net primary production as it does not contain carbon allocated to symbionts, used for exudates or volatile carbon compound emissions to the atmosphere. Our study reveals a positive bias of 24 \pm 11% in the model-estimated BP (10 of 14 models). When correcting models for this bias while leaving modeled carbon turnover times unchanged, we found that the global ecosystem carbon storage change during the last century is decreased by 67% (or 58 Pg C).</abstract>
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%0 Journal Article %T Global vegetation biomass production efficiency constrained by models and observations %A He, Yue %A Peng, Shushi %A Liu, Yongwen %A Li, Xiangyi %A Wang, Kai %A Ciais, Philippe %A Arain, M. Altaf %A Fang, Yuanyuan %A Fisher, Joshua B. %A Goll, Daniel S. %A Hayes, Daniel J. %A Huntzinger, D. N. %A Ito, Akihiko %A Jain, Atul K. %A Janssens, Ivan A. %A Mao, Jiafu %A Campioli, Matteo %A Michalak, A. M. %A Peng, Changhui %A Peñuelas, Josep %A Poulter, Benjamin %A Qin, Dahe %A Ricciuto, D. M. %A Schaefer, Kevin %A Schwalm, Christopher R. %A Shi, Xiaoying %A Tian, Hanqin %A Vicca, Sara %A Wei, Yaxing %A Zeng, Ning %A Zhu, Qiuan %J Global Change Biology, Volume 26, Issue 3 %D 2019 %V 26 %N 3 %I Wiley %F He-2019-Global %X Plants use only a fraction of their photosynthetically derived carbon for biomass production (BP). The biomass production efficiency (BPE), defined as the ratio of BP to photosynthesis, and its variation across and within vegetation types is poorly understood, which hinders our capacity to accurately estimate carbon turnover times and carbon sinks. Here, we present a new global estimation of BPE obtained by combining field measurements from 113 sites with 14 carbon cycle models. Our best estimate of global BPE is 0.41 \pm 0.05, excluding cropland. The largest BPE is found in boreal forests (0.48 \pm 0.06) and the lowest in tropical forests (0.40 \pm 0.04). Carbon cycle models overestimate BPE, although models with carbon-nitrogen interactions tend to be more realistic. Using observation-based estimates of global photosynthesis, we quantify the global BP of non-cropland ecosystems of 41 \pm 6 Pg C/year. This flux is less than net primary production as it does not contain carbon allocated to symbionts, used for exudates or volatile carbon compound emissions to the atmosphere. Our study reveals a positive bias of 24 \pm 11% in the model-estimated BP (10 of 14 models). When correcting models for this bias while leaving modeled carbon turnover times unchanged, we found that the global ecosystem carbon storage change during the last century is decreased by 67% (or 58 Pg C). %R 10.1111/gcb.14816 %U https://gwf-uwaterloo.github.io/gwf-publications/G19-71001 %U https://doi.org/10.1111/gcb.14816 %P 1474-1484
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[Global vegetation biomass production efficiency constrained by models and observations](https://gwf-uwaterloo.github.io/gwf-publications/G19-71001) (He et al., GWF 2019)
- Global vegetation biomass production efficiency constrained by models and observations (He et al., GWF 2019)
ACL
- Yue He, Shushi Peng, Yongwen Liu, Xiangyi Li, Kai Wang, Philippe Ciais, M. Altaf Arain, Yuanyuan Fang, Joshua B. Fisher, Daniel S. Goll, Daniel J. Hayes, D. N. Huntzinger, Akihiko Ito, Atul K. Jain, Ivan A. Janssens, Jiafu Mao, Matteo Campioli, A. M. Michalak, Changhui Peng, et al.. 2019. Global vegetation biomass production efficiency constrained by models and observations. Global Change Biology, Volume 26, Issue 3, 26(3):1474–1484.