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Long-term monitoring on the dynamics of ecosystem CO2 balance recovering from a clear-cut harvesting in a cool-temperate forest

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Title: Long-term monitoring on the dynamics of ecosystem CO2 balance recovering from a clear-cut harvesting in a cool-temperate forest
Authors: TAKAGI, Kentaro Browse this author →KAKEN DB
AGUILOS, Maricar Browse this author
LIANG, Naishen Browse this author →KAKEN DB
TAKAHASHI, Yoshiyuki Browse this author
SAIGUSA, Nobuko Browse this author →KAKEN DB
KOIKE, Takayoshi Browse this author →KAKEN DB
SASA, Kaichiro Browse this author →KAKEN DB
Keywords: carbon balance
clear-cut harvesting
eddy covariance
long-term flux monitoring
net ecosystem exchange of CO2
Issue Date: 2022
Publisher: Hokkaido University Forests, EFRC
Journal Title: Eurasian Journal of Forest Research
Volume: 22
Start Page: 49
End Page: 51
Abstract: Clear-cut harvesting is one of the important types of forest management but is considered to be a large CO2 source to the atmosphere. Understanding how this form of logging affects a site’s CO2 balance is critical for determining appropriate management scenarios, yet we have little understanding of how wood harvesting affects the ecosystem CO2 balance. An experimental clear-cutting and plantation establishment study has been conducted in a cool-temperate mixed forest in northern Japan to obtain a complete series of pre- and post-harvest data on the net ecosystem CO2 exchange (NEE) between the ecosystem and the atmosphere until a disturbed ecosystem once more become a net CO2 sink in the annual budget and recapture all the emitted CO2 after the harvest. A mixed forest, which had been a weak CO2 sink, was disturbed by clear-cutting and was replaced with a hybrid larch (Larix gmelinii × L. kaempferi) plantation. The ecosystem turned to be a large CO2 source just after the harvesting in 2003, and the cumulative net CO2 emission reached up to 15.4 MgC ha–1 at 7 years after the harvesting, then the ecosystem turned to be a CO2 retrieve mode (CO2 sink in the annual budget). This ecosystem recaptured all CO2 emission 18 years after the harvesting in 2020, if off-site carbon storage in forest products is not considered. This implies one harvesting operation cause large invisible and long-lasting effect on the forest ecosystem CO2 balance.
Type: bulletin (article)
Appears in Collections:Eurasian journal of forest research > Vol.22

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