Extra Climate Benefits From Afforestation Due to Reduced Forest Fragmentation in China
中国における森林断片化の軽減による植林の追加的な気候利益 (AI 翻訳)
Nan Meng, Wei Li, Philippe Ciais, Martin Brandt, Xiaowei Tong, Yanzheng Yang, Guofeng Shen, Wei Du, Lei Zhu, Yi Leng, Minxuan Sun, Mengjie Han, Xi Zhang, Jie Zhang, Nan Wang, Dan Tong, Chao Wu, Wenhao Dong, Shu Tao, Bo Pan
🤖 gxceed AI 要約
日本語
中国の植林（約9000万ha）により断片化した森林が結合し、エッジ森林が内部森林に転換。この転換林でバイオマス増加によるCO2吸収（約1.4Pg CO2e）とアルベド低下による温暖化効果（約0.9Pg CO2e）が生じ、正味で植林直接効果に追加的な6.6%の便益があることを発見。
English
Afforestation in China (89.6 M ha) reduced forest fragmentation, converting edge forests to interior forests. These transformed forests sequestered an extra 1.4±0.2 Pg CO2e from biomass but caused biophysical warming of 0.9 Pg CO2e from albedo change, netting an additional 6.6% climate benefit beyond planted forests alone.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本でも森林整備やJ-クレジット制度における植林プロジェクトの評価に、森林断片化の軽減効果を考慮する視点を提供。ただし本論文の対象は中国であり、日本の森林状況に直接適用するには追加検討が必要。
In the global GX context
This paper highlights an overlooked climate benefit of afforestation — reducing forest fragmentation — that could be integrated into global nature-based solution carbon accounting frameworks like those under the Paris Agreement.
👥 読者別の含意
🔬研究者:Quantifies the biophysical and biogeochemical effects of fragmentation reduction, useful for improving carbon accounting in afforestation models.
🏛政策担当者:Suggests that afforestation policies should consider fragmentation reduction to maximize climate benefits, relevant for national greenhouse gas inventories.
📄 Abstract（原文）
ABSTRACT Afforestation connects isolated forests into larger contiguous forests, reducing forest fragmentation. This process decreases edge areas by transforming edge forests into new interior forests (termed transformed forests). However, the extra climate benefits from edge reductions in transformed forests, beyond those provided by the planted forests themselves, remain unclear. Here, CO 2 sequestration from increased biomass (biogeochemical effect) and emissions from decreased albedo (biophysical effect) of transformed forests in China are estimated, using multiple high‐resolution remote‐sensing datasets. The planted forest area (89.6 M ha) accounted for 35.5% of China's forest area in 2015, transforming 51.8 M ha of edge forests into interior forests. A cumulative increase of 1.4±0.2 Pg CO 2 e in the transformed forests is found, compared with a biomass increase of 10.3±0.4 Pg CO 2 e in the planted forests over ~1980–2015. These transformed forests also induce a biophysical warming effect of −0.9 Pg CO 2 e, partially offsetting the cooling effect from increased biomass. Combining both effects, transformed forests provide a net CO 2 e gain of 0.5±0.2 Pg CO 2 e, representing an extra 6.6±2.7% of the direct climate benefits from planted forests. This study reveals previously ignored extra climate benefits from reduced forest fragmentation alongside forest expansion, offering new perspectives on mitigating climate warming through afforestation.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1002/advs.75872first seen 2026-06-18 05:51:26
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