Elemental Concentration and Physicochemical Properties of Soils under Different Landuses in Gashua a Sahel Region of Nigeria

Authors : Kehinde BUSARİ, İbraheem ALHASSAN, Oji ONUK

Pages : 1-14

Doi:10.38061/idunas.815402

View : 39 | Download : 21

Publication Date : 2021-06-30

Article Type : Research Paper

Abstract :Soil elements assessment under various land uses is vital in knowing the status of the soils in terms of fertility and toxicity. Therefore, a study was conducted to investigate some elements concentrations of soils under three different land uses in Gashua, Yobe State, Nigeria. Samples were randomly taken at 0-15 and 15-30 cm soil depth intervals from land uses. The land uses are Dry upland insert ignore into journalissuearticles values(DU);, Lowland insert ignore into journalissuearticles values(LL); and Residential area insert ignore into journalissuearticles values(RA);. The selected elements were determined in the laboratory using Atomic Absorption Spectrophotometer insert ignore into journalissuearticles values(AAS);, while some physicochemical properties were determined using routine soil analysis methods. The results indicated significantly higher concentrations of Iron insert ignore into journalissuearticles values(6.96 mg kg-1);, Manganese insert ignore into journalissuearticles values(3.12 mg kg-1); and clay content insert ignore into journalissuearticles values(12.88%);, except for Nickel which was higher in DU insert ignore into journalissuearticles values(2.36 mg kg-1); but at par with the content in LL insert ignore into journalissuearticles values(2.04 mg kg-1); land use. There was no significant difference within the following soil elements within the study location: Cadmium insert ignore into journalissuearticles values(Cd);, Chromium insert ignore into journalissuearticles values(Cr);, Copper insert ignore into journalissuearticles values(Cu); and Lead insert ignore into journalissuearticles values(Pb); were below detection limit within the soils of the chosen land use types. Generally the soils textural class is sandy loam with higher mean bulk density insert ignore into journalissuearticles values(1.62g cm-3); and a neutral soil pH insert ignore into journalissuearticles values(6.81);. The physicochemical properties and elements investigated didn’t showed significant differences with soil depth. The basic elemental concentrations within the soils were mostly adequate for crop production, except Zn, with little variability within the landuse. They were generally below the utmost ecological risk permissible level set by WHO and FAO.
Keywords : Gashua, landuse, soil texture, trace elements

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