IIARD International Institute of Academic Research and Development

INTERNATIONAL JOURNAL OF AGRICULTURAL AND EARTH SCIENCE (IJAES )

E- ISSN 2489-0081
P- ISSN 2695-1894
VOL. 11 NO. 6 2025
DOI: 10.56201/ijaes.vol.11.no6.2025.pg36.45

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Soil Carbon Sequestration Potentials of Four Different Land-Use Types in Ogba/Egbema/Ndoni Local Government Area, Rivers State, Southern Nigeria

Ekeh Favour Chioma, Kamalu Jas Onyinyechi, Needam Great Baritoesaen, Idibia Faith Akumjeri

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Abstract

The determination of the potential of soil for carbon sequestration is important because of the issue of global warming, which is a threat to human life. This information is not readily available in Ogba/Egbema/Ndoni Local Government of Rivers State. To this end, the study was conducted to determine the carbon potential and carbon dynamics in soils of four different land use types (pipeline right of way, crop cultivated land, forested land, and fallow land use) in Okposi, Omoku, and Obrikom communities. Disturbed and undisturbed soils were taken at three depths (0-20, 20- 40, 40-60cm). The data were subjected to descriptive statistics. From the result, the Total organic carbon ranged from 1.053 – 5.421 %. The forested land use type had the highest total organic carbon of 2.220- 5.421 %, followed by crop cultivation land use type with values of 3.560-4.630 % while soils of pipeline right of way had the least TOC of 1.053- 1.780 % and the highest bulk density. The soil organic carbon stock was further calculated in (t C/ha), and the SOC stock ranged from 0. 610912 – 2.166840 t C/ha. The highest SOC Stock was recorded in crop cultivation land use type with values ranging from 1.845504 – 2.166840 t C/ha, followed by forested land use type at 0-20cm having values of 1.910360 t C/ha. High carbon sequestration in cassava cultivation plots could be attributed to the age, type of vegetation, and plants' ability to capture and store atmospheric carbon since young plants sequester more carbon than old ones.

keywords:

carbon sequestration, land use types, global warming, climate change, soil organic

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