劣化ガリー地形における竹系システムの多十年評価：自然基盤解決策・スマート技術・伝統知の融合による持続可能な水管理
Bridging nature-based solutions, smart technologies, and traditional wisdom for sustainable water management: a multi-decadal evaluation of bamboo-based systems in degraded ravine landscapes (原題)
Murari Lal Gaur
🤖 gxceed AI 要約
日本語
インドの劣化ガリー地形を対象に、1985〜2025年の長期観測・流域実験・事業データ・文献を統合し、竹を基盤とする自然基盤解決策（NbS）の水文学的・生態学的効果を評価した。竹の導入により流出量が80〜90%、土壌流出が85〜95%、土砂生産が90%以上削減され、2〜3年でガリーが安定化した。浸透能は最大約140cm/hに向上し、土壌有機炭素と微生態環境も改善した。経済的には年収33,500〜48,000ルピー/ha、IRR18〜22%が示され、統合的な「自然基盤水文学工学」枠組みが提案されている。
English
A multi-decadal (1985–2025) synthesis evaluates bamboo-based Nature-based Solutions for restoring degraded ravine landscapes in India, integrating field observations, watershed experiments, monitoring, project data, and literature. Bamboo cut runoff by 80–90%, soil loss by 85–95%, and sediment yield by over 90%, stabilizing gullies within 2–3 years, while infiltration rose to ~140 cm/h with gains in soil organic carbon. Annual returns of ₹33,500–48,000/ha and IRRs of 18–22% support a proposed Nature-Based Hydrological Engineering framework.
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
日本企業のNbS・生物多様性クレジットやTNFD対応を検討する際、長期実証に基づく効果定量の一事例として参考になる。ただしSSBJ・有報開示への直接的接続は弱い。
In the global GX context
Adds long-term field evidence to the global NbS and nature-disclosure conversation (TNFD, biodiversity credits), though it does not engage ISSB/CSRD disclosure mechanics directly.
👥 読者別の含意
🔬研究者:NbSの水文学的効果を長期データで定量した証拠統合の手法と限界を学べる。
🏢実務担当者:自然基盤の水リスク対策・植林事業の投資回収指標（IRR・年収）の参考値として使える。
🏛政策担当者:流域劣化対策や気候レジリエンス政策における竹系NbSの費用対効果の根拠になりうる。
📄 Abstract（原文）
ABSTRACT Nature-based Solutions (NbS) are increasingly recognized as sustainable approaches for addressing water insecurity, land degradation, biodiversity loss, and climate resilience. However, robust long-term field evidence quantifying their hydrological and ecological effectiveness remains limited. This study presents a multi-decadal (1985–2025) evidence synthesis evaluating bamboo-based NbS for restoring degraded ravine landscapes in India by integrating long-term field observations, experimental watershed investigations, hydrological monitoring, project datasets, and peer-reviewed literature. Results demonstrate that bamboo functions as living hydrological infrastructure by enhancing rainfall retention, increasing infiltration, reducing runoff and sediment transport, improving soil quality, and accelerating ecological recovery. Bamboo-based interventions reduced runoff by 80–90%, soil loss by 85–95%, and sediment yield by over 90%, while stabilizing gullies within 2–3 years. Infiltration increased substantially (up to ∼140 cm h−1) together with improvements in soil organic carbon and micro-ecological conditions. Economically, bamboo systems generated annual returns of ₹33,500–48,000 ha−1 with internal rates of return of 18–22%. The study proposes an integrated Nature-Based Hydrological Engineering framework, establishing bamboo as a scalable, climate-resilient solution for watershed restoration, erosion control, and sustainable water management in degraded landscapes worldwide.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.2166/wpt.2026.448first seen 2026-10-27 04:50:44 · last seen 2026-11-06 04:54:56
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