ナイジェリア・アクワイボム州の選定森林保護区における炭素隔離能とバイオマス損失の時空間分析（1986〜2019年）
Spatio-Temporal Analysis of Carbon Sequestration Potential and Biomass Loss in Selected Forest Reserves of Akwa Ibom State, Nigeria (1986–2019) (原題)
Otobong O. Etuk, Emmanuel P. Udofia, Rosemary. E. Thomas
🤖 gxceed AI 要約
日本語
ナイジェリアの森林保護区を対象に、GISと現地調査を組み合わせ、炭素隔離能とバイオマス損失を32年間にわたり評価。平均炭素密度は113,532 kg C/ha、年間隔離能は206,333 kg C/年と推定。一方、森林伐採による大規模なバイオマス損失が確認され、保護区が排出源に転じるリスクを示す。地域の保全戦略に示唆を与える。
English
This study assesses carbon sequestration and biomass dynamics in Nigerian forest reserves over 32 years using GIS and field surveys. It finds high carbon density but alarming biomass losses due to deforestation, threatening to turn forests into emission sources. Provides empirical basis for local conservation 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SSBJ開示やカーボンニュートラル政策が進むが、本論文はナイジェリアの地域研究であり直接的な関連は薄い。ただし、途上国における森林炭素勘定の実証例として、日本の国際協力や海外投融資における炭素評価の参考になり得る。
In the global GX context
While focused on Nigeria, this study contributes empirical data on forest carbon dynamics in tropical regions, relevant to global climate mitigation and REDD+ initiatives. It underscores the importance of accurate carbon accounting for land-use sectors, which is increasingly relevant under ISSB and CSRD disclosure frameworks.
👥 読者別の含意
🔬研究者:Provides empirical carbon density and sequestration data for Nigerian forests, useful for regional carbon cycle modeling.
🏢実務担当者:Limited direct application for corporate sustainability teams, but may inform nature-based offset projects in the region.
🏛政策担当者:Highlights deforestation risks and the need for conservation policies to maintain carbon sinks, relevant for national climate strategies.
📄 Abstract（原文）
This study evaluates the carbon sequestration potential and biomass dynamics within three critical forest reserves in Akwa Ibom State, Nigeria, over a comprehensive thirty-two-year longitudinal period (1986–2019). Utilizing a robust mixed-method approach that integrates Geographic Information Systems (GIS) mapping with non-destructive field inventory techniques, tree diameters at breast height (DBH) were measured, ranging significantly from 4.14 cm to 197.45 cm across the study sites. The findings reveal a substantial average carbon density of 113,532.26 kg C ha⁻¹, while the mean regional sequestration potential was established at 206,333.126 kg C year⁻¹. However, the spatial-temporal analysis uncovers an alarming and persistent trend of carbon depletion; specifically, the OguItu and Stubb Creek reserves suffered massive biomass losses exceeding 13 million and 6 million kg C, respectively, primarily driven by deforestation for local livelihoods. While the current sequestration potential remains higher than those identified in comparable regional studies, the accelerating rate of biomass loss threatens to transition these vital ecological sinks into active atmospheric emission sources. These results provide a critical empirical framework for localized conservation strategies aimed at enhancing sustainable forest management and mitigating the long-term impacts of climate change within the Niger Delta region.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.67163/njsr.4.2.2026.95first seen 2026-09-07 04:36:14
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