都市型自然基盤ソリューションにおけるバイオ炭の政策ダイナミクス、統合フレームワーク、性能評価：アフリカの都市に焦点を当てて
Policy Dynamics, Integration Framework, and Performance Evaluation of Biochar in Urban Nature-Based Solutions: A Focus on African Cities (原題)
Mbugua James Kamau, Waswa Gabriel Andati
🤖 gxceed AI 要約
日本語
アフリカの都市における気候変動、廃棄物、都市成長の課題に対し、バイオ炭を活用した自然基盤ソリューション（NbS）の有効性を体系的文献レビュー（78件）で評価。バイオ炭は土壌の浸透性を40-60%向上、汚染物質除去80%、CO2換算で2.5-3トン/トンの炭素隔離能を示すが、ガバナンスの断片化や規制・資金不足が普及を阻害。統合フレームワークを提唱し、循環型都市経済と気候適応への統合を提案。
English
This systematic review (78 articles, 2019-2026) evaluates biochar as an enhancement for urban Nature-Based Solutions (NbS) in African cities. Biochar improves soil infiltration by 40-60%, pollutant removal up to 80%, and sequesters 2.5-3 tons CO2-eq per ton. However, fragmented governance, lack of regulations, and affordability hinder adoption. The study advocates an integrated framework linking feedstock, pyrolysis, and NbS implementation for circular urban economies and climate adaptation.
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
日本ではバイオ炭は農地への炭素貯留や土壌改良材として注目されているが、都市部でのNbSへの応用は未開拓。本論文の統合フレームワークは、日本の都市緑化や廃棄物処理政策（循環型社会形成推進基本法など）に示唆を与える。
In the global GX context
Globally, biochar is recognized for carbon sequestration and soil health, but its integration into urban NbS is underexplored. This paper provides a framework that can inform international climate adaptation and circular economy policies, especially in developing urban contexts.
👥 読者別の含意
🔬研究者:Provides a systematic framework for evaluating biochar in urban NbS, useful for comparative studies in other regions.
🏢実務担当者:Offers evidence on biochar performance and barriers, guiding urban planners and waste management teams in integrating biochar into green infrastructure.
🏛政策担当者:Highlights policy and governance gaps that need addressing to scale biochar-based NbS, relevant for urban climate adaptation planning.
📄 Abstract（原文）
The main challenges facing African cities are climate sensitivity, waste, and urban growth. Nature-Based Solutions (NbS) relying on natural processes are definitely a good idea, but to be successful, they need multifunctional materials. This research explores Biochar, a carbon-rich material produced through biomass pyrolysis, as an improvement agent for urban NbS in Africa. By analysing 78 peer-reviewed articles, policies, and case studies (2019-2026) via a systematic literature review, this research assessed: (1) Biochar efficiency in water management, soil fertility, and ecological function; (2) carbon sequestration in urbanising settings; and (3) economic, policy, and institutional drivers of Biochar adoption. Results show that Biochar-treated soils enhance infiltration by 40-60%, pollutant removal by up to 80%, and sequester 2.5-3 tons of CO₂-equivalent per ton. However, uptake in African cities is hindered by fragmented governance, lack of best practice regulations, lack of affordability and capacity. This research advocates for an integrated framework linking feedstock, pyrolysis, NbS in implementation pathways, and outcomes. This approach offers insights for planners and policymakers to integrate Biochar into circular urban economies and climate adaptation. Research findings conclude that Biochar-boosted NbS represent a significant expansion of scalable, cost-effective methods for sustainable urban development. However, it is necessary that such development is backed up by supportive policies, economic incentives, and participatory governance approaches tailored to the African context.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.37284/eajenr.9.3.5583first seen 2026-08-20 04:44:24
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