Effects of agroforestry on soil carbon and nutrient cycling: A review
アグロフォレストリーが土壌炭素と栄養循環に与える影響：レビュー (AI 翻訳)
Ranvijay Kumar, Sonali Kumari, Shashidhar Ks, Susree Snigdha Das, Dhiraj Kumar Yadav, Sanjay Chaudhary, Himadri Shekhar Datta, Lalit Upadhyay, Mayank Kumar, Gurpreet Singh
🤖 gxceed AI 要約
日本語
この総説はアグロフォレストリーが土壌炭素貯留と養分循環に与える影響をまとめている。主なメカニズムは有機物の投入と土壌団粒化であり、表層土では炭素蓄積が増加するが、下層土では変動がある。窒素固定や深根による養分循環の改善、温室効果ガスフラックスへの影響も議論されている。
English
This review synthesizes the effects of agroforestry on soil carbon storage and nutrient cycling. Key mechanisms include increased organic matter inputs and soil aggregation, leading to higher soil organic carbon stocks in topsoil. The paper also discusses nitrogen fixation, nutrient recycling, greenhouse gas fluxes, and management factors such as tree species and pruning.
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、森林と農業の融合（アグロフォレストリー）はカーボンネットゼロ目標に貢献する可能性がある。SSBJや有報での土地関連GHG排出開示が進む中、この総説は土壌炭素管理の基礎を提供する。
In the global GX context
Globally, agroforestry is recognized for its carbon sequestration potential, relevant to TCFD/ISSB disclosures on land use and agriculture. This review provides a comprehensive overview of mechanisms, supporting climate-smart agriculture practices.
👥 読者別の含意
🔬研究者:Provides a thorough summary of agroforestry's soil carbon and nutrient cycling mechanisms, serving as a reference for further studies.
🏢実務担当者:Can inform sustainable land management practices and carbon sequestration strategies in agricultural operations.
🏛政策担当者:Highlights agroforestry's potential for climate mitigation, supporting the design of agricultural policies that promote carbon sinks.
📄 Abstract（原文）
Agroforestry systems are multifunctional and well recognized for their ability to trap carbon and improve nutrient cycles. This research synthesizes information to date on the impact on soil C dynamics and nutrient fluxes of integrating woody perennials with annual crops or grazing. The main mechanisms of carbon acquisition are enhancement of organic matter turnover and enhancement of soil aggregation as a result of enhanced aboveground litter intake and belowground root biomass by the plants. Empirical data show that many agroforestry systems accumulate greater soil organic carbon stocks than surrounding croplands, notably in the topsoil, but subsurface responses are varied. Trees provide a large quantity of organic inputs to soil via litterfall and fine root turnover. This similar way helps to increase nutrient cycling. Nitrogen fixing plants provide nitrogen to the soil, deep roots recycle phosphorus and potassium and varied biota speed up mineralization. Microbial biomass and mycorrhizal abundance are often higher, indicating the presence of superior carbon sources. Agroforestry influences greenhouse gas fluxes, with increased sequestration associated with declines in CO₂ emissions per unit area, lower N₂O emissions due to reduced fertilizer requirements and better absorption and maybe greater CH₄ uptake rates in well-drained soils. Important management issues include tree species (legume vs. non-legume), planting density, pruning regimes, fertilizer use and tillage techniques. Soil carbon buildup trajectories are influenced by temporal issues such as years following establishment and previous land use histories. The relative effect of tropical, temperate and dry systems varies geographically with temperature and baseline fertility.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.33545/2618060x.2026.v9.i6sd.5782first seen 2026-06-21 05:22:58
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