Authors : Youmandja Arif Riyak Thiombiano; Vergiliano Haumen Colo; Jacob Da Costa Pereira; Kamidi Ouoba

Volume/Issue : Volume 11 - 2026, Issue 2 - February

Google Scholar : https://tinyurl.com/4a9n75up

Scribd : https://tinyurl.com/2utfrebk

DOI : https://doi.org/10.38124/ijisrt/26feb1091

Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.

Abstract : Agroforestry systems are increasingly recognized as climate-smart land-use strategies that integrate ecological sustainability with socio-economic benefits. This study evaluates the carbon stock and CO₂ sequestration capacity of a mixedspecies agroforestry system in Indonesia, specifically focused on Durian tree, Longan tree, Banana tree, and Avocado tree. We used field measurements of basal area and biomass to estimate aboveground carbon stock and CO₂ equivalents. The findings revealed a total above-ground biomass of 47.02 tons ha⁻¹, which corresponds to a carbon stock of 22.07 tons C ha⁻¹ and a CO2 sequestration potential of 81.02 tCO₂e ha⁻¹. Longan tree and Durian tree contributed the most biomass and carbon storage, while Banana tree and Avocado tree contributed comparatively smaller amounts. Moderate species diversity was indicated by the computed Shannon–Wiener index (H′ = 1.65), pointing to an agroforestry system that is partially structured but not yet extremely complicated. These findings emphasize the importance of large-diameter, long-lived fruit trees in long-term carbon storage, but fast-growing species like banana improve short-term sequestration. The heterogeneous composition promotes both ecological resilience and continued carbon cycling. Comparisons with recent research show that the sequestration value of this system is within the effective mitigation range of Indonesian agroforestry, making it a potential candidate for inclusion in national climate programs and voluntary carbon markets. Overall, the study emphasizes the potential of agroforestry to considerably reduce greenhouse gas emissions while benefiting rural livelihoods.

Keywords : Agroforestry, Biomass, Carbon Stock, CO₂ Sequestration, Plant Diversity.

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