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Proceedings of the International Academy of Ecology and Environmental Sciences, 2023, 13(3): 126-138
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Article

Total carbon stock from biomass and soil in agroforestry system of two different ecological regions of western Nepal

Shashi Kafle
Tribhuvan University, Kathmandu, Nepal

Received 30 March 2023;Accepted 8 May 2023;Published online 25 May 2023;Published 1 September 2023
IAEES

Abstract
Nepal, where more than 80% people are still living in the countryside and their main profession is based on agriculture and its relevant sectors are exercising different mode of agroforestry system for their daily livelihood activities. Carbon sequestration through agroforestry system is an emerging strategy to cope with the immediate and long-term impacts of climate change in all its coping options such as adaptation, mitigation and resilience. Realizing these facts, this paper aimed to determine the carbon stock in agroforestry system especially on regards to home garden in two different ecological regions of western Nepal. Two different ecological regions were selected namely Terai and Mid-hills of western Nepal. The result found that average total biomass was significantly greater (p<0.05) in Terai (21.314 t/ha) than in Mid-hills (11.203 t/ha). The mean of total biomass carbon stock was found to be 10.255 t/ha and 5.24 t/ha for Terai and Mid-hill respectively. The soil carbon stock was found 61.17 t/ha in Terai and 67.608 t/ha in mid-hills whose bulk density found 1.38 g/cm³ in Terai and 1.076 g/cm³ in Mid-hills region. However, there was no significant difference (p>0.05) found in the total carbon stock (biomass and soil) between two ecological regions i.e., 71.433 t/ha in Terai and 72.856 t/ha in Mid-hills. This study can be helpful in providing insight in adaptation of various trees to mitigate the effect the climate change.

Keywords agroforestry system;home garden;Terai region;Mid-hills;biomass carbon stock;soil carbon stock.

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