Carbon storage by Neltuma juliflora on Santiago Island and its potential role in climate change mitigation in Cabo Verde
サンティアゴ島におけるNeltuma julifloraの炭素貯留とカーボベルデの気候変動緩和における潜在的役割 (AI 翻訳)
Daniel António Tavares Semedo Semedo, Lurdes Borges da Silva, Diogo C. Pavão, Guilherme Roxo, Roberto Resendes, João Cardoso, Maria M. Romeiras, Mónica Moura, Luís Silva
🤖 gxceed AI 要約
日本語
本研究は、カーボベルデのサンティアゴ島における侵略的外来種Neltuma julifloraの炭素貯留量を初めてブロック規模で評価した。地上部炭素貯留量は27.4〜85.3 Mg C ha⁻¹と変動し、樹木の構造特性に強く関連した。土壌炭素は低く、樹木からの距離とは無関係だった。乾燥地の炭素評価のベースラインを提供し、気候変動緩和戦略における種の慎重な評価を支持する。
English
This study provides the first block-scale assessment of carbon stocks in Neltuma juliflora stands on Santiago Island, Cabo Verde. Aboveground carbon stocks varied from 27.4 to 85.3 Mg C ha⁻¹, strongly associated with stand structure, while soil organic carbon remained low (7.1 Mg C ha⁻¹) with no radial trend. Findings offer a baseline for dryland carbon assessment and support cautious, site-specific evaluation of the species in climate mitigation strategies.
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、乾燥地生態系の炭素貯留に関する知見は限定的だが、国際的な炭素市場やJCMなどの制度設計において、乾燥地の炭素評価手法は参考になり得る。また、侵略的外来種の管理と炭素貯留の両立は、日本の生態系保全政策にも示唆を与える。
In the global GX context
This study contributes to global dryland carbon accounting, particularly for SIDS, which are often underrepresented in climate research. It highlights the potential of invasive species for carbon storage, a topic relevant to nature-based solutions and carbon credit methodologies under international frameworks like the Paris Agreement.
👥 読者別の含意
🔬研究者:Provides empirical data on carbon storage in dryland invasive species, useful for refining carbon accounting models in SIDS.
🏢実務担当者:Offers baseline data for potential carbon credit projects, but caution is needed due to invasive species risks.
🏛政策担当者:Informs climate mitigation strategies in dryland regions, emphasizing the need for site-specific assessments of invasive species.
📄 Abstract（原文）
Arid and semi-arid ecosystems constitute important carbon reservoirs, yet their contribution to climate regulation remains insufficiently documented, particularly in Small Island Developing States (SIDS). In this context, invasive or introduced woody species may contribute substantially to biomass accumulation in degraded drylands, although quantitative evidence for Neltuma juliflora remains limited. This study provides the first block-scale assessment of carbon stocks in N. juliflora stands on Santiago Island, Cabo Verde, using validated allometric equations and topsoil analyses across 11 sampling blocks. A total of 463 individuals were measured. Aboveground carbon stocks varied markedly among blocks, ranging from 27.4 to 85.3 Mg C ha⁻ 1 , and were strongly associated with variation in stand structure, particularly equivalent diameter, tree height and stand density. In contrast, soil organic carbon in the 0–20 cm layer remained comparatively low, averaging 7.1 Mg C ha⁻ 1 , and showed no significant radial trend with increasing distance from the tree. Instead, variation in soil carbon was more closely associated with block-level edaphic heterogeneity than with local canopy effects. Belowground carbon, estimated using a fixed root-to-shoot ratio, followed the same spatial pattern as aboveground biomass and should therefore be interpreted as a derived rather than independently measured pool. Overall, the results demonstrate that N. juliflora can support substantial woody carbon storage under semi-arid insular conditions, whereas shallow soil carbon remains limited. These findings provide an important baseline for dryland carbon assessment in Cabo Verde and support a cautious, site-specific evaluation of the species in restoration and climate-mitigation strategies given its recognised invasive potential.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1038/s41598-026-61445-2first seen 2026-08-05 04:45:45
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