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Plant Science Today (PST)

Review Articles

Early Access

Agroforestry - An elixir for soil health management and carbon sequestration

DOI
https://doi.org/10.14719/pst.7284
Submitted
19 January 2025
Published
17-05-2025
Versions

Abstract

Intensive agricultural practices have resulted in in significant soil degradation, nutrient imbalances and the decline of vital ecosystem services, thereby necessitating the adoption of i sustainable land-use strategies. Agroforestry, an integrated land management system that combined with crops and livestock, played a key role in restoring soil health and increasing carbon sequestration. This review discussed the mechanisms through which agroforestry improved soil nutrient cycling, enhanced the accumulation of organic matter and strengthened soil structure, thereby reducing erosion and improving water retention. The roles of tree litter decomposition, deep-rooted species and microbial interactions in increasing soil fertility and biodiversity were also highlighted. Furthermore, the review examined agroforestry’s potential for carbon sequestration, with estimates indicating that such systems could sequester 0.29 to 15.2 Mg C ha-1 year-1. Above Ground Biomass (AGB) accumulation and Below Ground Biomass, (BGB) root inputs contributed significantly to long-term soil carbon stabilization. Agroforestry also aided in greenhouse gas mitigation by enhancing nitrogen use efficiency, facilitating methane oxidation and regulating CO₂ flux. Various agroforestry models, including silvopastoral systems, alley cropping were explored for their applications in both degraded and saline soils. Additionally, the review addressed challenges such as economic and policy barriers, the need for secure land tenure and advancements in carbon monitoring technologies. This findings underscored the necessity for stronger policy support, financial incentives and large-scale adoption of agroforestry to enhance soil health, mitigate climate change and promote sustainable agriculture.

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