Dynamics of soil organic carbon stock under different types of savannah agrosystems in the Sudano-Sahelian zone of Cameroon

Authors : Awé Djongmo VİCTOR, Noiha Noumi VALERY, Alaam Iyawa FRANCOİS, Tengomo Donhakia Christiane VANİSSA, Mbang PAULİDORE, Zapfack LOUİS

Pages : 51-60

Doi:10.18393/ejss.809272

View : 15 | Download : 3

Publication Date : 2021-01-01

Article Type : Research Paper

Abstract :The aim of this study was to quantify the current soil organic carbon stock under different types of savannah agrosystems in the Sudano-Sahelian zone of Cameroon in the context of greenhouse gas emissions and land degradation. It is so crucial for combating climate change and improving ecological restoration. Random field sampling was carried out on 0-10, 10-20 and 20-30 cm depth, then were collected in four types of savannah agrosystems. Soil bulk density, pH, moisture content, CEC, exchangeable bases, particle size distribution and soil organic carbon were determined using standard laboratory procedures and calculations. The results of the study did not reveal a significant difference in soil organic carbon stock between different types of savannah agrosystems insert ignore into journalissuearticles values(P>0.05);. Soils of Tamarindus indica savannah agrosystems in recorded higher values SCOS insert ignore into journalissuearticles values(36.03 ± 3.31 tC/ha);, Prosopis africana insert ignore into journalissuearticles values(33.40 ± 3.27 tC/ha);, Haematostaphis barterii insert ignore into journalissuearticles values(31.83 ± 3.21 tC/ha); and Detarium microcarpum insert ignore into journalissuearticles values(31.19 ± 3.19 tC/ha); savannah agrosystems. Similarly, SCOS decreased with soil depth in all types of savannah agrosystems. Results showed a positive and significant insert ignore into journalissuearticles values(P 0.05); with Density, K+, CEC, Sand %, Silt %, Clay %, Silt + Clay %. The results show the potential contribution of savannah agrosystems to improve soil organic carbon sequestration and environmental protection.
Keywords : Organic carbon, soil organic carbon stock, carbon sequestration, Savannah agrosystems, Cameroon, climate change