IIARD International Institute of Academic Research and Development

International Journal of Agriculture and Earth Science (IJAES )

E- ISSN 2489-0081
P- ISSN 2695-1894
VOL. 8 NO. 4 2022
DOI: https://doi.org/10.56201/ijaes.v8.no4.2022.pg38.52

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Soil Characteristics in a Gully Erosion Site, Asase, North Bank, Makurdi, Nigeria

Malum Japhet Flayin ,Burbwa Annord Kuma , Sini Vaisa Jonathan

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Abstract

An assessment studies of some soil properties in gully erosion site at Asase town into River Benue embankment(4km), in Makurdi Benue State was carried out. Morphometry study of the erosion sites’ length, width, depth and nature of the erosion was done. Soil samples from five sites (A-E), at the top, middle and bottom of the gully were collected, giving a total of 15 soil samples and analyzed. Results showed all site soils were mostly dominated by loosed and very porous sandy constituents with low proportion of silt and clay. The textural class of the soils were sandy-loam. The entire site mean for moisture content was 11.26% (low), bulk density, 1.40 g/cm3(low) while porosity value was 47.70%. The mean physico-chemical properties of organic carbon showed low value of 0.34%, organic matter 0.60% (low), nitrogen content 0.33% high, phosphorus value 0.36mk/kg, low, potassium 0.25 cmol/kg (medium), sodium 0.22 cmol/kg (medium), magnesium 2.32 cmol/kg (high), calcium 2.57 cmol/kg (medium), hydrogen potential(pH) value of 6.14, showing that, the soil is slightly acidic while the exchangeable cation capacity (CEC) was 6.41 cmol/kg (medium). The entire result showed bulk density and soil particles are not consolidated, resulting in poor binding nature of the soil, therefore when impacted on by flood water, it erods. This explains why the gully walls easily collapse, creating deep and wide gullies in the sites. It is recommended that mitigation of gullies of these nature, is to construct concrete trapezoidal drainage channels after proper analysis of the soils in the area.

keywords:

Assessment, Soil properties, Gully erosion, Physico-chemical, Makurdi

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