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

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 re...

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Main Authors: Awé Djongmo Victor, Noiha Noumi Valery, Alaam Iyawa Francois, Tengomo Donhakia Christiane Vanissa, Mbang Paulidore, Zapfack Louis
Format: Article
Language:English
Published: Federation of Eurasian Soil Science Societies 2021-01-01
Series:Eurasian Journal of Soil Science
Subjects:
Online Access:http://ejss.fesss.org/10.18393/ejss.809272
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spelling doaj-77dbbb4a6c634d25a4e0cf55b05520902021-01-12T12:28:46ZengFederation of Eurasian Soil Science SocietiesEurasian Journal of Soil Science 2147-42492021-01-01101516010.18393/ejss.809272Dynamics of soil organic carbon stock under different types of savannah agrosystems in the Sudano-Sahelian zone of CameroonAwé Djongmo Victor0https://orcid.org/0000-0002-8493-6695Noiha Noumi Valery1https://orcid.org/0000-0003-1036-883XAlaam Iyawa Francois2https://orcid.org/0000-0002-3687-4557Tengomo Donhakia Christiane Vanissa3https://orcid.org/0000-0001-9634-0357Mbang Paulidore4https://orcid.org/0000-0003-0642-769XZapfack Louis5https://orcid.org/0000-0002-0958-0916Department of Biological Sciences, Faculty of Science, University of Ngaoundere, Ngaoundere, CameroonHigher Teacher Training College of Bertoua, Department of Life Science, University of Ngaoundéré, Bertoua, CameroonNational School of Agro-Industrial Sciences, University of Ngaoundere, Ngaoundere, Cameroon Department of Earth Science, Faculty of Science, University of Ngaoundere, Ngaoundere, CameroonHigher Teacher Training College of Maroua, Department of Life Science, University of Maroua, Maroua, CameroonDepartment of Biology and Plant Physiology, Faculty of Sciences, University of Yaoundé I., CameroonThe 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 (P>0.05). Soils of Tamarindus indica savannah agrosystems in recorded higher values SCOS (36.03 ± 3.31 tC/ha), Prosopis africana (33.40 ± 3.27 tC/ha), Haematostaphis barterii (31.83 ± 3.21 tC/ha) and Detarium microcarpum (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 (P<0.05) correlation between soil organic carbon stock with basal area, biovolume, bulk density, moisture content, C/N ratio, Ca2+, Mg2+, OM; negative and significant (P<0.05) with Soil pH, Total Nitrogen, Na+ but negative and non-significant (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.http://ejss.fesss.org/10.18393/ejss.809272organic carbonsoil organic carbon stockcarbon sequestrationsavannah agrosystemscameroonclimate change
collection DOAJ
language English
format Article
sources DOAJ
author Awé Djongmo Victor
Noiha Noumi Valery
Alaam Iyawa Francois
Tengomo Donhakia Christiane Vanissa
Mbang Paulidore
Zapfack Louis
spellingShingle Awé Djongmo Victor
Noiha Noumi Valery
Alaam Iyawa Francois
Tengomo Donhakia Christiane Vanissa
Mbang Paulidore
Zapfack Louis
Dynamics of soil organic carbon stock under different types of savannah agrosystems in the Sudano-Sahelian zone of Cameroon
Eurasian Journal of Soil Science
organic carbon
soil organic carbon stock
carbon sequestration
savannah agrosystems
cameroon
climate change
author_facet Awé Djongmo Victor
Noiha Noumi Valery
Alaam Iyawa Francois
Tengomo Donhakia Christiane Vanissa
Mbang Paulidore
Zapfack Louis
author_sort Awé Djongmo Victor
title Dynamics of soil organic carbon stock under different types of savannah agrosystems in the Sudano-Sahelian zone of Cameroon
title_short Dynamics of soil organic carbon stock under different types of savannah agrosystems in the Sudano-Sahelian zone of Cameroon
title_full Dynamics of soil organic carbon stock under different types of savannah agrosystems in the Sudano-Sahelian zone of Cameroon
title_fullStr Dynamics of soil organic carbon stock under different types of savannah agrosystems in the Sudano-Sahelian zone of Cameroon
title_full_unstemmed Dynamics of soil organic carbon stock under different types of savannah agrosystems in the Sudano-Sahelian zone of Cameroon
title_sort dynamics of soil organic carbon stock under different types of savannah agrosystems in the sudano-sahelian zone of cameroon
publisher Federation of Eurasian Soil Science Societies
series Eurasian Journal of Soil Science
issn 2147-4249
publishDate 2021-01-01
description 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 (P>0.05). Soils of Tamarindus indica savannah agrosystems in recorded higher values SCOS (36.03 ± 3.31 tC/ha), Prosopis africana (33.40 ± 3.27 tC/ha), Haematostaphis barterii (31.83 ± 3.21 tC/ha) and Detarium microcarpum (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 (P<0.05) correlation between soil organic carbon stock with basal area, biovolume, bulk density, moisture content, C/N ratio, Ca2+, Mg2+, OM; negative and significant (P<0.05) with Soil pH, Total Nitrogen, Na+ but negative and non-significant (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.
topic organic carbon
soil organic carbon stock
carbon sequestration
savannah agrosystems
cameroon
climate change
url http://ejss.fesss.org/10.18393/ejss.809272
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