Crossing climatic thresholds diminishes carbon storage potential in high-latitude forests
気候閾値を超えると高緯度森林の炭素貯蔵能が低下する (AI 翻訳)
Chuanqiao Tan, Shijie Han, Yude Pan, Tong Zheng, Chunnan Fan, Ben Bond-lamberty, Yangao Jiang, Xinran Huang, Zhongling Guo, Jie Yu, Guoyong Yan, Qinggui Wang, Junqiang Zheng, Xiaoyang Cui, Lihua Wang, Wei Cao, Qingfan Meng, Jinping Zheng, W Wang, Wang Xl
🤖 gxceed AI 要約
日本語
中国東北部の4,011の森林調査サイトデータを用いて、高緯度森林の炭素貯蔵能が気候閾値を超えると低下することを示した。地上部と地下部で異なる温度・降水閾値を特定し、樹種多様性が炭素蓄積を促進することを発見。将来の気候変動下で、2060年までに地域の18-23%が温度閾値を超えると予測され、森林管理への示唆を提供する。
English
Using data from 4,011 forest inventory sites in Northeast China, this study demonstrates that carbon storage potential in high-latitude forests declines beyond climatic thresholds. Distinct temperature and precipitation thresholds for aboveground and belowground carbon are identified, and tree diversity enhances carbon accumulation. By 2060, 18–23% of the region may exceed thresholds, informing climate-adaptive forest management.
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
日本の高緯度森林（北海道など）にも応用可能な気候閾値の定量知見を提供。J-クレジット制度における森林炭素吸収源の脆弱性評価や適応的管理に活用できる。
In the global GX context
This paper quantifies nonlinear climatic constraints on forest carbon sinks, providing mechanistic understanding crucial for improving global carbon cycle models and nature-based solution crediting under REDD+ and the Paris Agreement.
👥 読者別の含意
🔬研究者:Provides empirical evidence of climatic thresholds and tree diversity effects on carbon storage, useful for carbon cycle modeling and forest ecology.
🏢実務担当者:Offers thresholds that can inform climate-adaptive forest management and carbon offset project design in high-latitude regions.
🏛政策担当者:Highlights the risk that climate change may reduce forest carbon sink potential, underscoring the need for adaptation strategies in carbon accounting policies.
📄 Abstract（原文）
High-latitude forests are critical carbon sinks, yet their future capacity under climate change remains uncertain due to unidentified climatic thresholds. Based on data from 4,011 forest inventory sites in Northeast China, we find that both aboveground and belowground carbon pools saturate with forest aging, with the belowground pool saturating earlier. We identify distinct temperature (0.33°C vs. −0.08°C) and precipitation (626 mm vs. 689 mm) thresholds for aboveground and belowground carbon sink potential. Crossing these thresholds leads to noticeable shifts in carbon-climate associations. Furthermore, tree diversity enhances carbon accumulation across all scenarios with varying intensities. Under future climate change projections, 18.2%–22.7% of the region is expected to surpass the temperature threshold for aboveground carbon, and 16.6%–20.7% for belowground carbon, by 2060. This study quantifies the nonlinear climatic constraints on carbon sink potential, providing a mechanistic basis for predicting vulnerability and guiding climate-adaptive forest management strategies to preserve carbon sequestration.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.crsus.2026.100784first seen 2026-07-29 05:21:36
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