Soil Acidification Vulnerability and Long-term Trace Metal Depletion Under Rubber Tree Plantations in the Semi-mountainous Region of West Côte d'Ivoire

N’CHO Odon Clément; KOUADIO A. Marie-Noelle; KOUADIO Konan-Kan Hippolyte; ODOH C. Nkiruka

doi:10.36948/ijfmr.2023.v05i06.9182

Soil Acidification Vulnerability and Long-term Trace Metal Depletion Under Rubber Tree Plantations in the Semi-mountainous Region of West Côte d'Ivoire

Author(s)	N’CHO Odon Clément, KOUADIO A. Marie-Noelle, KOUADIO Konan-Kan Hippolyte, ODOH C. Nkiruka
Country	Cote D'ivoire
Abstract	The objective of this study was to assess the impacts of rubber cultivation on soil properties in the Tonkpi region, western Côte d’Ivoire. The study proceeded by comparing soils under rubber tree cultivation of different ages to those under other crops or fallow. The soils were sampled from a depth of 0 to 25 cm. The samples were dried and then sent to the central laboratory of the University of Man for physical and chemical analyses. Soil pH was measured with the multiparameter HANNA HI9829. Soil potentially toxic elements like As, Zn, Cu, Ni, Co, Cr, Mo, Fe, Se, Ca, Pb, K, Mn and V were analyzed, at the geological laboratory of the University Felix Houphouet-Boigny with a handheld NITON XL3t X-ray fluorescence analyzer. The results showed that soils from rubber-cultivated areas had a sandy loamy-clay texture, while those from the control area had a sandy-loamy texture. The soil pH was strongly to slightly acidic, with pH varying from 4.86 to 6.34, while the bulk densities varied from 0.51/g cm3 to 0.62 g/cm3. The redox potential of the soils was inferior to 400 mV (Eh ˂ 400 mV). This study also revealed a general decrease in the potentially toxic element content of soils under rubber cultivation. The soil contents of Cr, Co and Cu were inferior to the limit of detection. The Pb, Mn and Ca concentrations were 4.81, 194.2 and 2140 µg g-1, respectively, and these were significantly different from those of the other soils. This study provided a major insight into the effect of rubber cultivation in western Côte d'Ivoire.
Keywords	Potentially toxic element, pXRF, Hevea brasiliensis, heavy metal
Field	Biology > Agriculture / Botany
Published In	Volume 5, Issue 6, November-December 2023
Published On	2023-11-25
Cite This	Soil Acidification Vulnerability and Long-term Trace Metal Depletion Under Rubber Tree Plantations in the Semi-mountainous Region of West Côte d'Ivoire - N’CHO Odon Clément, KOUADIO A. Marie-Noelle, KOUADIO Konan-Kan Hippolyte, ODOH C. Nkiruka - IJFMR Volume 5, Issue 6, November-December 2023. DOI 10.36948/ijfmr.2023.v05i06.9182
DOI	https://doi.org/10.36948/ijfmr.2023.v05i06.9182
Short DOI	https://doi.org/gs63zm

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Soil Acidification Vulnerability and Long-term Trace Metal Depletion Under Rubber Tree Plantations in the Semi-mountainous Region of West Côte d'Ivoire

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