慣行および代替養分管理下におけるトマト–緑豆作付体系の炭素フットプリント、エネルギー動態、環境効率
Carbon Footprint, Energy Dynamics, and Eco-Efficiency of Tomato–Green Gram Cropping System Under Conventional and Alternative Nutrient Regimes (原題)
Dhandayuthapani Udhaya Nandhini, Manivelu Rajasekar, Rajasekaran Nagajothi, Ramar Selvam, Sanasi Jaisankar Kathirvel, Subramanian Venkatesan, Sivaprakasam Jidhu Vaishnavi, Kandasamy Senthilraja, Somasundaram Eagan
🤖 gxceed AI 要約
日本語
インド・タミルナードゥ州のトマト–緑豆体系で4種の養分管理を比較した圃場研究。有機管理(ONM)が最高の生産性・エネルギー効率・費用便益比を示し、炭素フットプリントも最小だった。一方、総エネルギーへの寄与は肥料が最大(38.7%)で、INMはN2O排出が相対的に高い。ONMは環境効率・炭素効率・炭素持続性指数の面でも優れ、気候スマートな実践として評価できる。
English
Field study in Tamil Nadu comparing four nutrient regimes in a tomato–green gram system. Organic management (ONM) achieved the highest productivity, energy output, energy profitability and benefit–cost ratio, with the lowest carbon footprint (vs 0.10 kg CO2e/kg for INM and CNM). Fertilizers were the largest energy contributor (38.7%), and INM showed higher N2O emissions. ONM also improved eco-efficiency, carbon efficiency and carbon sustainability index, supporting climate-smart, resource-efficient vegetable–legume systems.
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
日本のGX文脈では、Scope 3の上流(農産物調達)や食品企業のサプライチェーン排出把握に関わる基礎的知見として参考になる。ただし国内制度(SSBJ・有報)への直接接続は弱い。
In the global GX context
Adds empirical evidence on agricultural carbon and energy accounting relevant to Scope 3 upstream (agricultural procurement) and food-sector supply-chain emissions, though it does not engage TCFD/ISSB/CSRD disclosure frameworks directly.
👥 読者別の含意
🔬研究者:農業システムの炭素・エネルギー効率評価手法と有機管理の効果を比較する実証データとして有用。
🏢実務担当者:食品・農業関連企業が上流農産物調達の排出・エネルギー効率を検討する際の参考事例になる。
🏛政策担当者:気候スマート農業と有機養分管理の促進策を検討する際の地域実証として参照できる。
📄 Abstract（原文）
Agriculture is a major contributor to greenhouse gas (GHG) and energy consumption due to the intensive use of synthetic chemicals, posing serious threats to the environment, soil and human well-being. This issue is particularly important in tomato-growing regions of Tamil Nadu, where high-input farming practices are widely adopted. Therefore, identifying a sustainable nutrient management strategy is essential for developing climate-resilient and resource-efficient systems in line with the Sustainable Development Goals (SDG 2, SDG 7, SDG 12 and SDG 13). A field study was conducted in a tomato–green gram cropping system to evaluate four nutrient management (NM) regimes, namely Integrated (INM), Conventional (CNM), Organic (ONM) and Farmers’ Practice (FNM). The results indicated that the ONM system recorded the highest system productivity (26.4 t ha−1), energy output (200,110 MJ ha−1), energy productivity (0.99 kg MJ−1), energy profitability (8.94), non-renewable energy use efficiency (18.8) and benefit–cost ratio (4.28), while INM is associated with relatively higher nitrous oxide (N2O) emissions. The major contributor to total energy was fertilizers (38.7%). The INM and CNM systems had the highest carbon footprint (0.10 kg CO2e per kg) while the ONM system had the lowest. The ONM system had considerably increased eco-efficiency in terms of energy use (INR 20.1 MJ−1 and INR 226 per kg CO2e) over other regimes. Furthermore, ONM improved the carbon efficiency (80%) and carbon sustainability index (94%) compared to INM. Overall, the findings demonstrate that ONM is a viable, eco-efficient and climate-smart practice that enhances productivity and profitability, improves energy efficiency, and reduces the carbon footprint in vegetable–legume systems.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/nitrogen7040121first seen 2026-10-18 04:52:18
🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。