Characterization and classification of soils along a typical Hillslope in Afikpo area of Ebonyi state, Nigeria

Esu, I. E.; Akpan-Idiok, A. U.; Eyong, M. O.

doi:10.4314/njser.v8i1.52050

Cited by 27 publications

(30 citation statements)

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“…Investigation of the relationship between landscape and soil properties enhances the effort to improve the fertility and productivity of land. Hence, topography based soil studies play a significant role in the process that dictates the distribution and use of soils on the landscape (Esu et al, 2008). It is widely reported that topography affects soil types and properties at a watershed level (Shimelis et al, 2007;Sheleme, 2011).…”

Section: Introductionmentioning

confidence: 99%

Characterization and classification of soils of Yikalo Subwatershed in Lay Gayint District, Northwestern Highlands of Ethiopia

Fekadu¹,

Kibret²,

Bedadi³

et al. 2018

Eurasian Journal of Soil Science (Ejss)

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Soil resource information is vital for sound land use planning and sustainable fertility management. This study was carried out with the objective of characterizing and classifying soils of Yikalo Subwatershed at Lay Gayint district, Northwestern Ethiopia. Representative soil pedons were opened along topographic positions and described on genetic horizon basis in the field for their morphological characteristics and analyzed in the laboratory for selected physical and chemical soil properties. The soils were classified following the FAO (2014). The results revealed the presence of variations in the selected morphological properties within a pedon and along the topographic positions. Soils differed in reaction from 4.57 to 6.42. On the surface horizons of the soil pedons, available P content varied from 0.21 to 3.25 mg kg-1 , while exchangeable acidity ranged from 0.17 to 3.65 cmolc kg-1 soil. There was no consistent trend for cation exchange capacity (CEC) and PBS (percent base saturation) with soil depth and topographic positions. The soils in Yikalo Subwatershed were classified as Hyperdystric Cambisols (Humic), Haplic Alisols (Humic), Cambic Umbrisols (Colluvic), Haplic Luvisols (Epidystric), and Pellic Vertisols (Mesotrophic). Optimum rates of organic and inorganic amendments should be applied to reduce the level of soil acidity, and improve the fertility level of the soils for better crop production and productivity.

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Section: Introductionmentioning

confidence: 99%

Characterization and classification of soils of Yikalo Subwatershed in Lay Gayint District, Northwestern Highlands of Ethiopia

Fekadu¹,

Kibret²,

Bedadi³

et al. 2018

Eurasian Journal of Soil Science (Ejss)

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“…The soils are well drained, deep laterite fertile, sandy, clay, basalt and heavily leached. The areas are characterized by gently and steeply sloping landscape of 0-9 % overall without shoulder but the crest gradually sloping towards the valley bottom with moderate to high erosion conditions (Ibanga, 2006;Esu et al ., 2008;Ekwueme, 2003).…”

Section: The Study Areamentioning

confidence: 99%

“…The soils are strongly acidic with pH value ranging from 4.1 to 5.5 (Ibia et al, 2011). The soils are characterized by weak, fine crumb surface horizons and weak sub-angular subsurface horizons (Esu et al ., 2008).…”

Section: Introductionmentioning

confidence: 99%

Application of Erodibility Nomograph in the Assessment of Soil Erosion in Two Different Agro-ecological Zones

Akpa¹,

Okon-Inyang²,

Otu³

et al. 2020

Preprint

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This study highlights application of erodibility nomograph to assess soil erosion in central and northern agro-ecological zones of Cross River State, Nigeria. Seventeen composite soil samples were collected from sites showing moderate to severe erosion problems to the depth of 0-30 cm with the use of soil auger by random sampling and analyzed using standard laboratory procedures. Results showed that the particle size analysis was coarse textured soils with high sand content giving dominant textural classes of sandy loam in central and loamy sand texture in northern agro-ecological zones. The soil separates were predominantly silt content in central and medium sand in the northern agro-ecological zones with mean values of 29.5 % and 26.3 %. The erodibility using nomograph showed low to medium (0.10 -0.19 Mg ha-1 MJ mm-1) in the central and medium (0.20 -0.29 Mg ha-1 MJ mm-1) in the northern agro-ecological zones with high CV (%) of 52.4 % in the central and 118.2 % in the northern agro-ecological zones suggesting erodible soils. Soil conservation measures such as contouring, mulching and cover cropping should be adopted to address and combat soil erosion to avoid serious soil erodibility.

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“…Contrarily, the irregular trend was observed in shale stone soils. Chikezie et al,(2009) and Esu et al,(2008) reviewed that increased in clay content of the soil with depth may be the consequence of eluviation-illuviation processes as well as contributions of the underlying geology through weathering. The results show that soil developed from shale stone is finer in texture than that developed on sandstone as evident in the relatively lower percentage of sand in the shale stone soil.…”

Section: Particle Size Distributionmentioning

confidence: 99%

Fertility status of selected soils developed on shale and sandstone parent materials in Odukpani Local Government Area, Cross River State, Nigeria

S.M

D.M

et al. 2020

NJSS

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The study evaluated the fertility status of soils developed on shale and sandstone parent materials in Odukpani LGA of Cross River State as a critical determinant of their proper management and utilization. Four pedons were sunk- two on each parent material and a total of sixteen soil samples were collected from different horizons of the profiles, processed and taken to the laboratory for analysis. Particle size analysis revealed that the texture of the soils of the two-parent materials varied from sandy clay, silty clay,sandy loam to sandy clay. The pH showed that soil of shale parent material was very strongly acidic with surface and subsurface means of 4.25 and 4.36 while that of sandstone was strongly acidic with mean values of 5.0in both top and subsoils. Except for pH, all other chemical properties were higher in shale parent material than in sandstone parent material. Organic carbon had surface and subsurface means of 2.82 g/kg and 0.91 g/kg, 1.71 g/kg and 0.37 g/kg, while total N had surface and subsurface, means 0.13 % and 0.08 %, 0.13 % and 0.03 % in soils of shale and sandstone parent materials respectively. Available P had surface and subsurface means of 19.7 mg/kg and 8.04mg/kg in shale parent material, 11.4 mg/kg and 7.44 mg/kg in sandstone parent materials. Exchangeable Al3+ was higher than H+ in both soils meaning that Al3+ was the primary cause of acidity. ECEC was low in both soils with surface and subsurface means of 10.72cmol/kg and 5.94cmol/kg in shale, 7.23 cmol/kg and 4.56 cmol/kg in sandstone while BS was high with mean values 84.04 % and 76.9 % in shale, 77.02 % and 72.07 % in sandstone representing surface and subsurface soils accordingly. The study revealed that soil developed on shale stone is more fertile than that of sandstone and as such more agronomic inputs and management practices will be required to enhance sustainable production in soils developed on sandstone than their shale stone counterpart.

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Characterization and classification of soils along a typical Hillslope in Afikpo area of Ebonyi state, Nigeria

Cited by 27 publications

References 0 publications

Characterization and classification of soils of Yikalo Subwatershed in Lay Gayint District, Northwestern Highlands of Ethiopia

Characterization and classification of soils of Yikalo Subwatershed in Lay Gayint District, Northwestern Highlands of Ethiopia

Application of Erodibility Nomograph in the Assessment of Soil Erosion in Two Different Agro-ecological Zones

Fertility status of selected soils developed on shale and sandstone parent materials in Odukpani Local Government Area, Cross River State, Nigeria

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