Plant Regrowth as a Driver of Recent Enhancement of Terrestrial CO2 Uptake
(2018) In Geophysical Research Letters 45(10). p.4820-4830- Abstract
The increasing strength of land CO2 uptake in the 2000s has been attributed to a stimulating effect of rising atmospheric CO2 on photosynthesis (CO2 fertilization). Using terrestrial biosphere models, we show that enhanced CO2 uptake is induced not only by CO2 fertilization but also an increasing uptake by plant regrowth (accounting for 0.33 ± 0.10 Pg C/year increase of CO2 uptake in the 2000s compared with the 1960s–1990s) with its effect most pronounced in eastern North America, southern-eastern Europe, and southeastern temperate Eurasia. Our analysis indicates that ecosystems in North America and Europe have established the current productive state through regrowth... (More)
The increasing strength of land CO2 uptake in the 2000s has been attributed to a stimulating effect of rising atmospheric CO2 on photosynthesis (CO2 fertilization). Using terrestrial biosphere models, we show that enhanced CO2 uptake is induced not only by CO2 fertilization but also an increasing uptake by plant regrowth (accounting for 0.33 ± 0.10 Pg C/year increase of CO2 uptake in the 2000s compared with the 1960s–1990s) with its effect most pronounced in eastern North America, southern-eastern Europe, and southeastern temperate Eurasia. Our analysis indicates that ecosystems in North America and Europe have established the current productive state through regrowth since the 1960s, and those in temperate Eurasia are still in a stage from regrowth following active afforestation in the 1980s–1990s. As the strength of model representation of CO2 fertilization is still in debate, plant regrowth might have a greater potential to sequester carbon than indicated by this study.
(Less)
- author
- publishing date
- 2018-05-28
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- biosphere model, carbon budget, CO fertilization, land use change, plant regrowth
- in
- Geophysical Research Letters
- volume
- 45
- issue
- 10
- pages
- 11 pages
- publisher
- American Geophysical Union (AGU)
- external identifiers
-
- scopus:85048575426
- ISSN
- 0094-8276
- DOI
- 10.1029/2018GL077633
- language
- English
- LU publication?
- no
- id
- e3a28f84-c3dd-4a9c-9674-b2e044935b1f
- date added to LUP
- 2020-11-19 22:47:03
- date last changed
- 2022-04-19 02:14:06
@article{e3a28f84-c3dd-4a9c-9674-b2e044935b1f,
abstract = {{<p>The increasing strength of land CO<sub>2</sub> uptake in the 2000s has been attributed to a stimulating effect of rising atmospheric CO<sub>2</sub> on photosynthesis (CO<sub>2</sub> fertilization). Using terrestrial biosphere models, we show that enhanced CO<sub>2</sub> uptake is induced not only by CO<sub>2</sub> fertilization but also an increasing uptake by plant regrowth (accounting for 0.33 ± 0.10 Pg C/year increase of CO<sub>2</sub> uptake in the 2000s compared with the 1960s–1990s) with its effect most pronounced in eastern North America, southern-eastern Europe, and southeastern temperate Eurasia. Our analysis indicates that ecosystems in North America and Europe have established the current productive state through regrowth since the 1960s, and those in temperate Eurasia are still in a stage from regrowth following active afforestation in the 1980s–1990s. As the strength of model representation of CO<sub>2</sub> fertilization is still in debate, plant regrowth might have a greater potential to sequester carbon than indicated by this study.</p>}},
author = {{Kondo, Masayuki and Ichii, Kazuhito and Patra, Prabir K. and Poulter, Benjamin and Calle, Leonardo and Koven, Charles and Pugh, Thomas A.M. and Kato, Etsushi and Harper, Anna and Zaehle, Sönke and Wiltshire, Andy}},
issn = {{0094-8276}},
keywords = {{biosphere model; carbon budget; CO fertilization; land use change; plant regrowth}},
language = {{eng}},
month = {{05}},
number = {{10}},
pages = {{4820--4830}},
publisher = {{American Geophysical Union (AGU)}},
series = {{Geophysical Research Letters}},
title = {{Plant Regrowth as a Driver of Recent Enhancement of Terrestrial CO<sub>2</sub> Uptake}},
url = {{http://dx.doi.org/10.1029/2018GL077633}},
doi = {{10.1029/2018GL077633}},
volume = {{45}},
year = {{2018}},
}