ブラジルの熱帯山地林における保守的な特性による安定したバイオマス蓄積
Stable biomass accumulation driven by conservative traits in Brazil’s tropical montane forests (原題)
Victor Braga Rodrigues Duarte, Henrique Machado Dias, Renan Köpp Hollunder, Jehová Lourenço, Gabriel Soares Lopes Gomes, Robert Gomes, Jéssica Tetzner de Oliveira
🤖 gxceed AI 要約
日本語
ブラジルの大西洋岸森林の熱帯山地林において、10年間のモニタリングデータを用いて地上部バイオマス（AGB）動態を解析。環境要因や機能形質がAGB増加に与える影響を評価し、保守的な形質を持つ種が多い群落でAGB増加が大きいことを発見。干ばつや環境フィルターがAGB動態を駆動し、安定した炭素隔離には熱帯山地林の保護と回復が重要と示唆。
English
This study analyzes aboveground biomass (AGB) dynamics in Brazil's Atlantic Forest montane rainforest using 10-year monitoring data. It finds that communities with more conservative species traits show higher AGB increases, with environmental filters like drought driving dynamics. The results highlight the importance of protecting and restoring tropical montane forests for stable carbon sequestration.
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GX文脈では、森林炭素吸収源の評価やJ-クレジット制度における森林管理の参考となり得る。ただし、ブラジル固有の生態系に焦点を当てており、直接的な政策連動は限定的。
In the global GX context
This paper contributes to global understanding of forest carbon dynamics, relevant for nature-based solutions and climate mitigation strategies. It provides empirical evidence on how functional traits influence carbon sequestration, which can inform international frameworks like REDD+ and IPCC guidelines.
👥 読者別の含意
🔬研究者:Provides insights into functional trait effects on biomass dynamics, useful for carbon cycle modeling and restoration ecology.
🏢実務担当者:Offers evidence for forest restoration projects aiming to maximize carbon sequestration, relevant for nature-based solution initiatives.
🏛政策担当者:Supports policies protecting tropical montane forests as carbon sinks, relevant for national climate commitments.
📄 Abstract（原文）
While tropical forests are key CO2 sinks, local drivers of aboveground biomass (AGB) dynamics in diverse systems like the Brazilian Atlantic Forest remain uncertain, constraining ecological references for restoration and long-term carbon sequestration. This study evaluates how biotic and abiotic variables influence AGB dynamics in a diverse montane rainforest. Eight permanent plots were monitored (2012–2022) along an elevational gradient in Caparaó National Park, Brazil. In the second inventory (five years post-El Niño drought), we recorded tree mortality and measured all individuals with DBH ≥ 5 cm. AGB was estimated by employing an allometric equation, and its dynamics between inventories were assessed. Environmental factors, forest structure, functional traits, species diversity, and functional diversity variables were related to ecological hypotheses. We found that AGB increased significantly over 10 years, with a higher increase in communities presenting species with more conservative traits. More plant mass results in faster or more efficient ecosystem functioning. The AGB varied substantially between the communities along the elevation and slope exposure gradients. Our results suggest that the environmental filter (drought and canopy opening) and biomass ratio hypothesis drive AGB dynamics, with AGB gain (main agent of net biomass change) being mainly related to initial growth of tree species rather than by the increment of large trees in the face of adverse environmental challenges. Conservative functional traits facilitate adaptation to harsh environments, ensuring steady AGB accumulation. Such stable carbon sequestration highlights the need to protect and restore tropical montane forests as reference systems against growing climate change threats.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.foreco.2026.124147first seen 2026-08-30 04:35:10
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