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Future Projection of CO2 Absorption and N2O Emissions of the South Korean Forests under Climate Change Scenarios: Toward Net-Zero CO2 Emissions by 2050 and Beyondopen access

Authors
Kim, Hyung-SubNoulekoun, FlorentNoh, Nam-JinSon, Yo-Whan
Issue Date
7월-2022
Publisher
MDPI
Keywords
climate change; modeling; carbon dioxide; nitrous oxide; greenhouse gas; net-zero emissions
Citation
FORESTS, v.13, no.7
Indexed
SCIE
SCOPUS
Journal Title
FORESTS
Volume
13
Number
7
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/143370
DOI
10.3390/f13071076
ISSN
1999-4907
Abstract
Forests mitigate climate change by absorbing CO2. However, N2O emissions in forests, which has 298 times larger global warming potential than CO2, can diminish the climate mitigation role of forests. Thus, it is crucial to project not only CO2 absorption but also N2O emissions in forests to provide a scientific basis for the 1.5 degrees C Paris Agreement goal. This study used a biogeochemical model, called FBD-CAN, to project CO2 absorption and N2O emissions of South Korean forests from 2021 to 2080 under three climate scenarios, including the current climate, Representative Concentration Pathway (RCP) 4.5, and RCP 8.5. From 2021 to 2080, CO2 absorption decreased from 5.0 to 1.4 Mg CO2 ha(-1) year(-1) under the current climate with the aging of forests, while N2O emissions increased from 0.25 to 0.33 Mg CO2 eq. ha(-1) year(-1). Climate change accelerated the decreasing trend in CO2 absorption and the increasing trend in N2O emissions. The subalpine region had a faster decreasing trend in CO2 absorption than the central and southern regions due to its older stand age. These findings provide scientific references for future greenhouse gas reduction plans and broaden our knowledge of the impacts of climate change on the climate mitigation role of forests.
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SON, Yo Whan
생명과학대학 (환경생태공학부)
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