コーヒーアグロフォレストリー、土壌炭素、熱帯アフロモンタン雨林の回復
Coffee agroforestry, soil carbon, and restoration of a tropical Afromontane rainforest (原題)
Maria T. Cossa, Tara J. Massad, David Fangueiro, Natasha S. Ribeiro, João Coutinho, Irene Fraga, Ana I. Ribeiro-Barros
🤖 gxceed AI 要約
日本語
本研究は、コーヒーアグロフォレストリーが熱帯アフロモンタン生態系の土壌炭素動態を部分的に回復させるが、自然林再生と比べて微生物機能や炭素動態が完全には回復しないことを実証した。土壌有機炭素は深さとともに減少し、アグロフォレストリーでは森林や休閑地より低く、炭素蓄積は再生林で有意に高かった。アグロフォレストリーは土壌炭素を維持できるが、森林再生戦略と統合する必要性を示唆する。
English
This study demonstrates that coffee agroforestry partially restores soil carbon dynamics in tropical Afromontane ecosystems, but microbial functioning and carbon dynamics are not fully recovered compared to natural forest regeneration. Soil organic carbon decreased with depth and was lower in agroforestry than in forests and fallow land, while carbon stocks were significantly higher in regenerating forest. Agroforestry can maintain soil carbon levels, but integration with forest restoration strategies is needed.
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
日本では、森林吸収源やJ-クレジット制度における土壌炭素管理の重要性が高まっており、本研究成果は熱帯地域での炭素貯留効果の評価に示唆を与える。日本の企業が海外のアグロフォレストリープロジェクトに投資する際の効果検証に活用できる。
In the global GX context
This study contributes to global understanding of land-based carbon sequestration, relevant for climate mitigation strategies and carbon offset programs. It provides empirical evidence on the limits of agroforestry for soil carbon recovery, informing international frameworks like REDD+ and sustainable land management policies.
👥 読者別の含意
🔬研究者:Provides empirical data on soil carbon dynamics in agroforestry systems, useful for land-use carbon modeling.
🏢実務担当者:Informs sustainable sourcing and land restoration strategies for coffee supply chains.
🏛政策担当者:Highlights the need to integrate agroforestry with forest restoration in climate mitigation policies.
📄 Abstract（原文）
Coffee agroforestry systems are increasingly promoted as sustainable land-use strategies to restore degraded tropical landscapes while supporting agricultural production and climate change mitigation. However, their ability to recover soil carbon pools relative to natural forest regeneration remains uncertain, particularly in tropical Afromontane ecosystems. We hypothesized that coffee agroforestry systems partially restore soil carbon dynamics but remain functionally distinct from soils in regenerating and mature forests. To test this, we evaluated soil organic carbon, carbon stocks, microbial biomass carbon and nitrogen, soil respiration, and labile carbon across five land-use types: fallow agricultural land, two-year-old and seven-year-old coffee agroforestry systems, regenerating forest, and mature forest fragments. Soil samples were collected at 0–15 cm and 15–30 cm depths and were analyzed using standard laboratory and statistical approaches. Soil organic carbon decreased with depth and was consistently lower in coffee agroforestry systems compared with forest and fallow sites. Carbon stocks were largely similar across land uses but were significantly higher in regenerating forest. Microbial biomass and soil respiration were reduced in older agroforestry systems, indicating lower biological activity. Labile carbon was highest in forest systems and positively related to total carbon stocks. These results demonstrate that while coffee agroforestry systems can maintain soil carbon levels, they do not fully restore soil carbon dynamics and microbial functioning compared with natural forest regeneration. This study provides new insights into the role of agroforestry in soil carbon recovery and highlights the need to integrate agroforestry with forest restoration strategies to enhance soil health, ecosystem resilience, and climate change mitigation in tropical landscapes.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3389/fsoil.2026.1879348first seen 2026-09-07 04:37:34
🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。