Driving Sustainable Circular Economy in Agriculture Through Napier Grass Cultivation: The Case of Rural West Bengal, India
ネピアグラス栽培による農業の持続可能な循環経済の推進：インド西ベンガル州農村部の事例 (AI 翻訳)
Soumya Basu, Takaya Ogawa
🤖 gxceed AI 要約
日本語
本研究は、インド西ベンガル州の農村部において、ネピアグラス栽培とバイオ肥料生産、酪農システムを統合した循環型農業モデルのスケーラビリティと持続可能性への影響を評価した。圃場実験により、バイオ肥料と灌漑最適化が土壌有機炭素を向上させ、休耕地でも高収量（500トン/エーカー）を達成可能であることを示した。経済モデルでは、栽培面積を1エーカーから100エーカーに拡大すると生産コストが40%削減される。2040年までに休耕地の10%で導入した場合、年間約7500万トンのバイオマス生産と375万世帯への利益が見込まれ、気候便益として年間約40Mt CO2の排出回避が推定された。
English
This study evaluates the scalability and sustainability impacts of integrating Napier grass cultivation with biofertilizer production and dairy systems in rural West Bengal. Field evidence shows biofertilizer and irrigation optimization significantly enhance soil organic carbon and achieve high yields (500 tons/acre) on fallow land. A technoeconomic model indicates production costs decrease by 40% when scaling from 1 to 100 acres. Under 10% adoption of fallow land by 2040, approximately 75 million tons of biomass annually can benefit 3.75 million households, with avoided emissions of ~40 Mt CO2 per year.
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
日本では農業のカーボンニュートラル化が進む中、本論文はバイオマス利用と土壌炭素隔離を統合した循環モデルを提供する。インド農村部の事例だが、日本の休耕地活用やバイオ肥料導入にも示唆がある。ただし、日本の農業規模や気候条件との差異は考慮が必要。
In the global GX context
This paper provides a scalable circular agriculture model with quantified climate co-benefits, relevant to global efforts on sustainable food systems and net-zero agriculture. It offers empirical evidence on biomass yield, soil carbon sequestration, and emissions reduction, supporting SDGs and climate finance frameworks.
👥 読者別の含意
🔬研究者:Provides empirical data and a technoeconomic model for integrating biofertilizer, irrigation, and dairy with Napier grass; useful for circular economy and climate mitigation research.
🏢実務担当者:Demonstrates a viable business model for smallholder farmers to increase income 2.5–4× while reducing emissions; agribusinesses can explore scaling.
🏛政策担当者:Highlights how fallow land conversion to Napier grass can meet multiple SDGs and climate goals; insights for agricultural and climate policy design in developing regions.
📄 Abstract（原文）
This study evaluates the scalability and sustainability impacts of integrating Napier grass cultivation with biofertilizer production and dairy systems in rural West Bengal. Field-level evidence indicates that biofertilizer application and irrigation optimization significantly enhance soil organic carbon (SOC), improving nutrient availability and enabling Napier yields of up to 500 tons/acre on fallow land. A technoeconomic model shows strong economies of scale, with production costs decreasing by 40% when area under cultivation is simulated from 1 acre to 100 acres. Statewide scaling scenarios demonstrate significant development potential. Under 10% adoption of fallow land by 2040, approximately 75 million tons of biomass can be grown annually, benefiting 3.75 million households, doubling under a 20% adoption scenario by 2050. The system enables a 2.5–4× increase in household income while delivering substantial climate co-benefits. Avoided emissions from manure management are estimated at ~40 Mt CO2 annually by 2040, increasing to ~80 Mt CO2 by 2050, alongside additional gains from soil carbon sequestration and reduced high-emission urea-use. Overall, the proposed circular model offers a scalable pathway for achieving multiple Sustainable Development Goals through integrated agricultural transformation.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/su18115387first seen 2026-06-15 05:03:53
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