UCIの研究者は、気候モデルや衛星データの改善により、炭素貯蔵について再考しています。 UCI researchers reconsider carbon storage with improved climate models, satellite data
2022-04-12 カリフォルニア大学アーバイン校（UCI）
＜関連情報＞
- https://news.uci.edu/2022/04/12/deforestation-drives-climate-change-that-harms-remaining-forest/
- https://www.nature.com/articles/s41467-022-29601-0
森林破壊による気候変動は、残存する熱帯林の炭素貯蔵量を減少させる Deforestation-induced climate change reduces carbon storage in remaining tropical forests
Yue Li,Paulo M. Brando,Douglas C. Morton,David M. Lawrence,Hui Yang &James T. Randerson
Nature Communications Published: 12 April 2022
Abstract
Biophysical effects from deforestation have the potential to amplify carbon losses but are often neglected in carbon accounting systems. Here we use both Earth system model simulations and satellite–derived estimates of aboveground biomass to assess losses of vegetation carbon caused by the influence of tropical deforestation on regional climate across different continents. In the Amazon, warming and drying arising from deforestation result in an additional 5.1 ± 3.7% loss of aboveground biomass. Biophysical effects also amplify carbon losses in the Congo (3.8 ± 2.5%) but do not lead to significant additional carbon losses in tropical Asia due to its high levels of annual mean precipitation. These findings indicate that tropical forests may be undervalued in carbon accounting systems that neglect climate feedbacks from surface biophysical changes and that the positive carbon–climate feedback from deforestation-driven climate change is higher than the feedback originating from fossil fuel emissions.
