A study was carried out in Guelendeng in the south west of Chad with the objective to determine the main process at the origin of soil formation and to classify the soils along a toposequence. Three pedological profiles have been dug with variable depths. The three soil profiles namely G1, G2 and G3 were dug respectively, in the upslope, midslope and the footslope; samples were collected from each horizon in each of the three profiles. The collected samples were labelled and sent to laboratories for mineralogical, geochemical and physicochemical analyses. The mineralogical analysis of the collected samples allowed to highlight the dominance of primary minerals, namely quartz and feldspar. The geochemical analysis of the samples collected in the different profiles shows that SiO2 is by far the most abundant oxide. The physicochemical analysis shows very high sand contents ranging from 72.5 to 88.00% in profile G1; from 73.5 to 76.5% in profile G2 and from 75.0 to 79.5% in profile G3. In each profile, sand contents increase with depth. The pH-water varies from 5.1 to 6.5 in profile G1; in profile G2, it varies from 5.5 to 6.6; it is from 5.4 to 5.9 in profile G3. The pH values are highest in the surface horizons and decrease with increasing depth. For each sample, the change in pH (ΔpH) is negative. The sums of exchangeable bases are low as are the exchangeable cations. The cation exchange capacities are also low as shown by the values of the exchangeable cation sums. The other nutrients, namely calcium, magnesium, organic carbon, nitrogen, available phosphorus, potassium, sodium and organic matter are also very poorly represented and the C/N values are also very low. According to the WRB, all three soils in the site are Arenosols. The colors of the different pits induce some nuances in the designations. According to the CPCS, they are sols ferrugineux tropicaux peu ou non lessivés. The dominant process of pedogenesis is monosiallitisation. The bad drainage due to relatively less abundant rainfall is the factor responsible for the presence of 2/1 minerals like smectite.
| Published in | Earth Sciences (Volume 12, Issue 6) |
| DOI | 10.11648/j.earth.20231206.14 |
| Page(s) | 225-232 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2023. Published by Science Publishing Group |
Chad, Arenosols, Sols Ferrugineux, Monosiallitisation
| [1] | Brabant, P. and Gavaud, M. (1983). Cartes des contraintes, des aptitudes et des ressources en terres du Nord-Cameroun. ORSTOM, notices, N°103 285 p. |
| [2] | Raunet, M. (2003). Some Key Morpho-Pedological Aspects of North Cameroon of Use to Agronomists, Montpellier: CIRAD. |
| [3] | Tardy, Y. (1997). Petrology of laterites and tropical soils. Balkema, Amsterdam, The Netherlands. |
| [4] | Fritsch, E. (2006). Formation et évolution des sols tropicaux. Habilitation à Diriger des Recherches. |
| [5] | Azinwi, T. P., E. joufac, D. W., Bitom, D. and Njopwouo, D. (2011). Petrological, physico-chemical and mechanical characterization of the topomorphic vertisols from the Sudano-Sahelian Region of North Cameroon. The Open Geological Journal, 53: 3-55. |
| [6] | Yerima B. P. K. and Van Ranst, E. (2005). Introduction to soil science: Soils of the tropics Trafford Publishing, 6E-2333 Government St, Victoria, BC Canada. |
| [7] | Haritash, A. K., Baskar, R., Sharma, N. and Paliwal, S. (2006). Impact of slate quarrying on soil properties in semi-arid Mahendragarh in India. Environ. Geol. 51: 1439-1445. |
| [8] | Tsozué, D. and Yongue-Fouateu, R. (2017). Tropical chemical weathering of a garnet rich micaschist in the rainforest zone of Cameroon. Eurasian J Soil Sci, 6 (1): 1-19. |
| [9] | Vasquez-Mendez, R., Ventura-Ramos, E., Oleschko, K., Sandoval L. H. and Dominguez-Cortazar, M. A. (2011). Soil Erosion Processes in Semiarid Areas: The Importance of Native Vegetation, Soil Erosion Studies. In Danilo Godone. |
| [10] | Fasina, A. S., Raji, A., Oluwatosin, G. A., Omoju, O. J. and Oluwadare, D. A. (2015). Properties, Genesis, Classification, Capability and Sustainable Management of Soils from South-Western Nigeria. International Journal of Soil Sciences, 10: 142-152. |
| [11] | Basga, S. D., Temga, J. P., Tsozué, D., Danbé, D. and Nguetnkam, J. P. (2018). Morphological, mineralogical and geochemical features of topomorphic vertisols used for sorghum production in North Cameroon, Eurasian J Soil Sci, 7: 346-354. |
| [12] | Francis, M. L., Fey, M. V., Ellis F. and Poch, R. M. (2012). Petroduric and ‘petrosepiolitic’ horizons in soils of Namaqualand, South Africa. Span. J. Soil Sci, 2: 8-25. |
| [13] | Tsozué, D. and Ndjigui, P. D. (2017b). Geochemical Features of the Weathered Materials Developed on Gabbro in a Semi-Arid Zone, Northern Cameroon. Geosciences 7, 16: 1-17. |
| [14] | Hountondji, Y. C. H. (2008). Dynamique environnementale en zones sahélienne et soudanienne de l’Afrique de l’Ouest: Analyse des modifications et évaluation de la dégradation du couvert végétal. Thèse Doctorat. Université de Liège/Belgique, 153p. |
| [15] | FAO (Food and Agriculture Organization of the United Nations). (2012). Evaluation des besoins dus aux inondations dans la Tandjile, Mayo Kebbi est, Mayo Kebbi Ouest, 73p. |
| [16] | Pias, J. (1968). La végétation du Tchad: ses rapports avec les sols. Variations paléobotaniques au quaternaire récent. |
| [17] | Baize, D. (1995). Guide pour la description des sols. Institut national de la recherche agronomique (INRA), Paris, 375p. |
| [18] | WRB (World reference base for soil resources). International soil classification system for naming soils and creating legends for soil maps. Update 2015. Food and Agriculture Organization of the United Nations (FAO). World Soil Reported Resources 106. Rome, Italy. Available (2014) 216p. |
| [19] | Commission de Pédologie et de Cartographie des Sols, Classification des sols. (1967). Travaux C. P. C. S. 1963-1967. ENSA, Grignon 100p. |
| [20] | Tsozué, D., Azinwi T. P. and Ndaka B. S. M. (2015). Morphology, Physicochemical Characteristics and Land Suitability in the Western Highlands of Cameroon. International Journal of Plant & Soil Science, 29-44. |
| [21] | Curmi, P. (1987). Sur la signification des revêtements des complexes argileux et limoneux dans les sols lessivés acides. INRA. |
| [22] | Millot, G. (1964). Géologie des argiles. Masson édit., Paris. |
| [23] | Aouam, H. (2007). Etude minéralogique et micromorphologique des sols alluviaux de la region du Guerrara (W. Ghardaïa). Mémoire Magister. |
| [24] | Tsozué, D. Bitom, D. and Yongue-Fouateu, R. (2011). In Situ Genesis of Alumino-Ferruginous Nodules in a Soil Profile Developed on Garnet Rich Micaschist in the High Reliefs of South Cameroon Rainforest Zone (Central Africa). The Open Geology Journal, 56-66. |
| [25] | Legros, J. P. (2013). Latérites et autres sols des régions intertropicales. Conférence n°4252, Séance académique du 09/12/2013. Bulletin N°44: 369-382. |
| [26] | Nguetnkam, J. P., Kamga, R., Villiéras, F., Ekodeck G. E. and Yvon, J. (2008). Altération différentielle du granite en zone tropicale. Exemple de deux séquences étudiées au Cameroun (Afrique Centrale). Comptes Rendus Géoscience, 340: 451-461. |
| [27] | Dridri, A. and Fedan, B. (2001). Origine et distribution des argiles des formations superficielles du moyen Sebou (Maroc). Bull de l’Institut scientifique, Rabat, Section Sciences de la Terre, 23: 55-65. |
| [28] | Kim, M. and Gilley, J. E. (2008). Artificial Neural network estimation of soil erosion and nutrient concentrations in runoff from land application areas, Agric, 64: 268-275. |
| [29] | Temga, J. P., Azinwi, T. P., Basga, D. S., Zo'o, Z. P., Gouban, H., Abossolo, M., Nguetnkam J. P. and Bitom D. (2019). Characteristics, classification and genesis of vertisols underseasonally contrasted climate in the Lake Chad Basin Central Africa, Journal of African Earth Sciences 150: 176-193. |
| [30] | Vizier, J. F. and Fromaget, M. (1970). Carte pétrologique de reconnaissance à 1/200.000 feuilles de Fianga et Laï. O. R. S. T. O. M, n° 39. |
| [31] | Ségalen, P. (1967). Sols et géomorphologie du Cameroun. Cahier ORSTOM. Bondy (France), séries pédologie, 137-187. |
| [32] | Dabin, B. (1969). Étude Générale des Conditions d’utilisation des sols de la cuvette tchadienne. Contribution à la connaissance du bassin tchadien. Travaux et documents de l’O. R. S. T. O. M. N°2. |
| [33] | Grégoire, I. and Grenon, L. (2020). S. O. S Sols: Le programme éducatif SOLERE sur la santé des sols de l’AQSSS, Etude et Gestion des Sols. |
| [34] | Gunamantha, I. M., Sudiana, I. K., Sastrawidana, D. K., Suryaputra, I. N. G. A. and Oviantari, M. V. (2021). The evaluation of soil fertility status of open space in campus area and their suitability for tropical fruits production. Journal of Soil Science and Environmental Management. 12(2): 78-85. |
APA Style
Issiné, A., Goalbaye, T., Amine Cherif, A., Toukou, H. (2023). Genesis and Classification of Soils on a Toposequence in Guelendeng, Southwest Chad. Earth Sciences, 12(6), 225-232. https://doi.org/10.11648/j.earth.20231206.14
ACS Style
Issiné, A.; Goalbaye, T.; Amine Cherif, A.; Toukou, H. Genesis and Classification of Soils on a Toposequence in Guelendeng, Southwest Chad. Earth Sci. 2023, 12(6), 225-232. doi: 10.11648/j.earth.20231206.14
AMA Style
Issiné A, Goalbaye T, Amine Cherif A, Toukou H. Genesis and Classification of Soils on a Toposequence in Guelendeng, Southwest Chad. Earth Sci. 2023;12(6):225-232. doi: 10.11648/j.earth.20231206.14
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Download@article{10.11648/j.earth.20231206.14,
author = {Agoubli Issiné and Touroumngaye Goalbaye and Ahmat Amine Cherif and Hara Toukou},
title = {Genesis and Classification of Soils on a Toposequence in Guelendeng, Southwest Chad},
journal = {Earth Sciences},
volume = {12},
number = {6},
pages = {225-232},
doi = {10.11648/j.earth.20231206.14},
url = {https://doi.org/10.11648/j.earth.20231206.14},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20231206.14},
abstract = {A study was carried out in Guelendeng in the south west of Chad with the objective to determine the main process at the origin of soil formation and to classify the soils along a toposequence. Three pedological profiles have been dug with variable depths. The three soil profiles namely G1, G2 and G3 were dug respectively, in the upslope, midslope and the footslope; samples were collected from each horizon in each of the three profiles. The collected samples were labelled and sent to laboratories for mineralogical, geochemical and physicochemical analyses. The mineralogical analysis of the collected samples allowed to highlight the dominance of primary minerals, namely quartz and feldspar. The geochemical analysis of the samples collected in the different profiles shows that SiO2 is by far the most abundant oxide. The physicochemical analysis shows very high sand contents ranging from 72.5 to 88.00% in profile G1; from 73.5 to 76.5% in profile G2 and from 75.0 to 79.5% in profile G3. In each profile, sand contents increase with depth. The pH-water varies from 5.1 to 6.5 in profile G1; in profile G2, it varies from 5.5 to 6.6; it is from 5.4 to 5.9 in profile G3. The pH values are highest in the surface horizons and decrease with increasing depth. For each sample, the change in pH (ΔpH) is negative. The sums of exchangeable bases are low as are the exchangeable cations. The cation exchange capacities are also low as shown by the values of the exchangeable cation sums. The other nutrients, namely calcium, magnesium, organic carbon, nitrogen, available phosphorus, potassium, sodium and organic matter are also very poorly represented and the C/N values are also very low. According to the WRB, all three soils in the site are Arenosols. The colors of the different pits induce some nuances in the designations. According to the CPCS, they are sols ferrugineux tropicaux peu ou non lessivés. The dominant process of pedogenesis is monosiallitisation. The bad drainage due to relatively less abundant rainfall is the factor responsible for the presence of 2/1 minerals like smectite.
},
year = {2023}
}
TY - JOUR T1 - Genesis and Classification of Soils on a Toposequence in Guelendeng, Southwest Chad AU - Agoubli Issiné AU - Touroumngaye Goalbaye AU - Ahmat Amine Cherif AU - Hara Toukou Y1 - 2023/11/29 PY - 2023 N1 - https://doi.org/10.11648/j.earth.20231206.14 DO - 10.11648/j.earth.20231206.14 T2 - Earth Sciences JF - Earth Sciences JO - Earth Sciences SP - 225 EP - 232 PB - Science Publishing Group SN - 2328-5982 UR - https://doi.org/10.11648/j.earth.20231206.14 AB - A study was carried out in Guelendeng in the south west of Chad with the objective to determine the main process at the origin of soil formation and to classify the soils along a toposequence. Three pedological profiles have been dug with variable depths. The three soil profiles namely G1, G2 and G3 were dug respectively, in the upslope, midslope and the footslope; samples were collected from each horizon in each of the three profiles. The collected samples were labelled and sent to laboratories for mineralogical, geochemical and physicochemical analyses. The mineralogical analysis of the collected samples allowed to highlight the dominance of primary minerals, namely quartz and feldspar. The geochemical analysis of the samples collected in the different profiles shows that SiO2 is by far the most abundant oxide. The physicochemical analysis shows very high sand contents ranging from 72.5 to 88.00% in profile G1; from 73.5 to 76.5% in profile G2 and from 75.0 to 79.5% in profile G3. In each profile, sand contents increase with depth. The pH-water varies from 5.1 to 6.5 in profile G1; in profile G2, it varies from 5.5 to 6.6; it is from 5.4 to 5.9 in profile G3. The pH values are highest in the surface horizons and decrease with increasing depth. For each sample, the change in pH (ΔpH) is negative. The sums of exchangeable bases are low as are the exchangeable cations. The cation exchange capacities are also low as shown by the values of the exchangeable cation sums. The other nutrients, namely calcium, magnesium, organic carbon, nitrogen, available phosphorus, potassium, sodium and organic matter are also very poorly represented and the C/N values are also very low. According to the WRB, all three soils in the site are Arenosols. The colors of the different pits induce some nuances in the designations. According to the CPCS, they are sols ferrugineux tropicaux peu ou non lessivés. The dominant process of pedogenesis is monosiallitisation. The bad drainage due to relatively less abundant rainfall is the factor responsible for the presence of 2/1 minerals like smectite. VL - 12 IS - 6 ER -
Faculty of Agronomic Sciences and Environment, University of Sarh, Sarh, Chad
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