Forest degradation contributes more to carbon loss than forest cover loss in North American boreal forests
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Forest degradation contributes more to carbon loss than forest cover loss in North American boreal forests. / Yu, Ling; Fan, Lei; Ciais, Philippe; Xiao, Jingfeng; Frappart, Frédéric; Sitch, Stephen; Chen, Jingming; Xiao, Xiangming; Fensholt, Rasmus; Chang, Zhongbing; Fang, Hongqian; Li, Xiaojun; Cui, Tiangxiang; Ma, Mingguo; Wigneron, Jean Pierre.
I: International Journal of Applied Earth Observation and Geoinformation, Bind 128, 103729, 2024.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Forest degradation contributes more to carbon loss than forest cover loss in North American boreal forests
AU - Yu, Ling
AU - Fan, Lei
AU - Ciais, Philippe
AU - Xiao, Jingfeng
AU - Frappart, Frédéric
AU - Sitch, Stephen
AU - Chen, Jingming
AU - Xiao, Xiangming
AU - Fensholt, Rasmus
AU - Chang, Zhongbing
AU - Fang, Hongqian
AU - Li, Xiaojun
AU - Cui, Tiangxiang
AU - Ma, Mingguo
AU - Wigneron, Jean Pierre
N1 - Publisher Copyright: © 2024 The Author(s)
PY - 2024
Y1 - 2024
N2 - The carbon sinks of North American boreal forests have been threatened by global warming and forest disturbances in recent decades, but knowledge about the carbon balance of these forests in recent years remains unknown. We tracked annual aboveground carbon (AGC) changes from 2016 to 2021 across the forest regions of NASA's Arctic Boreal Vulnerability Experiment (ABoVE) core study domain, using Vegetation Optical Depth derived from low-frequency passive microwave observations. The results showed that these forests showed a net AGC increase of + 28.49 Tg C/yr during the study period, with total AGC gains of + 219.34 Tg C/yr counteracting total AGC losses of −190.86 Tg C/yr. Forest degradation (-162.21 Tg C/yr), defined as a reduction in the capacity of forest to provide goods and services, contributes 5 times more to the total AGC loss than forest cover loss (-28.65 Tg C/yr), defined as the complete removal of tree cover. This indicates that degradation has dominated AGC loss in the region.
AB - The carbon sinks of North American boreal forests have been threatened by global warming and forest disturbances in recent decades, but knowledge about the carbon balance of these forests in recent years remains unknown. We tracked annual aboveground carbon (AGC) changes from 2016 to 2021 across the forest regions of NASA's Arctic Boreal Vulnerability Experiment (ABoVE) core study domain, using Vegetation Optical Depth derived from low-frequency passive microwave observations. The results showed that these forests showed a net AGC increase of + 28.49 Tg C/yr during the study period, with total AGC gains of + 219.34 Tg C/yr counteracting total AGC losses of −190.86 Tg C/yr. Forest degradation (-162.21 Tg C/yr), defined as a reduction in the capacity of forest to provide goods and services, contributes 5 times more to the total AGC loss than forest cover loss (-28.65 Tg C/yr), defined as the complete removal of tree cover. This indicates that degradation has dominated AGC loss in the region.
KW - Canadian boreal forests
KW - Carbon balance
KW - Forest degradation
KW - Remote sensing
U2 - 10.1016/j.jag.2024.103729
DO - 10.1016/j.jag.2024.103729
M3 - Journal article
AN - SCOPUS:85187662475
VL - 128
JO - International Journal of Applied Earth Observation and Geoinformation
JF - International Journal of Applied Earth Observation and Geoinformation
SN - 1569-8432
M1 - 103729
ER -
ID: 389595070