Abstract            Volume:9  Issue-12  Year-2021         Original Research Articles

Online ISSN : 2347 - 3215 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcret@gmail.com

Compiled information on the Mechanism of Soil Fertility Improvement as Influenced by Agroforestry trees in relation to soil fertility improvement through agroforestry systems, soil organic matter and organic carbon enhancement in agroforestry system, processes by which trees improve soils in agroforestry systems, agroforestry improves soil biota, role of trees root, agroforestry tree’s litter quality and decomposition, agroforestry systems for Soil and Water Conservation, soil nutrient cycling in agroforestry system through availing the required information which in turn has an implication to the sustainability of the system. So, the aim of this review paper was to compile information on mechanism of soil fertility improvement as influenced by agroforestry trees. Agroforestry is considered to be more compatible with society's ecological and environmental goals than conventional agriculture. Thus, the tree based agriculture play an important role, not only in improving the productivity and overall returns from the system, but also protects the soil from further degradation and improve the quality of the soil across the profile layers. The integration of trees, agricultural crops, and/or animals into an agroforestry system has the potential to enhance soil fertility, reduce erosion, and enhance soil biodiversity. Agroforestry trees also help in improving soil physical and biological properties. The mechanisms by which trees improve soil conditions include increased inputs (organic matter by litter and root residue decomposition, nitrogen through biological nitrogen fixation by nitrogen-fixing trees) and increased nutrient availability by nutrient uptake from below the reach of crop roots by deep-rooted trees. In order to use agroforestry systems as an important option for Socio-economic and environmental benefits; research, policy and practices will have to progress. Therefore, the governments and stakeholders should encourage agroforestry practices for improving the livelihoods of farming community and smoothly to tolerate soil degradation and the variable of climate change.

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