Temporal Variability of Soil Reaction Among Surface and Near-Surface Horizons of Soils of Dissimilar Lithology in a Humid Tropical Environment

Authors

  • Emmanuel Onweremadu Federal University of Technology, Owerri, Nigeria
  • Bernadine Aririguzo Federal University of Technology, Owerri, Nigeria
  • Nnaemeka Okoli Federal University of Technology, Owerri, Nigeria https://orcid.org/0000-0002-0436-259X
  • Isaiah Afangide Federal University of Technology, Owerri, Nigeria

DOI:

https://doi.org/10.3126/ije.v10i1.38532

Keywords:

Horizon, Soil reaction, Parent material, Lithology, Time

Abstract

The study investigated changes in soil reaction among surface and near surface horizons of four soil groups as affected by wet and dry seasons in Southeastern Nigeria. A geological map of the area guided soil sampling. Free survey approach was used in locating soil profiles. Soil samples were collected based on horizon differentiation and samples were collected from the AB-horizon (near-surface) and the A-horizon (Surface). Routine laboratory analyses were conducted on these soil samples after sieving through a 2-mm sieve. Data were subjected to analysis of variance (ANOVA) using SAS Statistical Computer Package. There were significant (p<0.05) changes in soil reaction in A- and AB-horizons in the dry seasons of 2016 and 2017.  Similarly, in the wet season, soil pH varied significantly (p<0.05) in 2016 and 2017. Soil reaction significantly (p<0.05) differed in AB-horizons in both 2016 and 2017 irrespective of the season. All soil samples were acidic irrespective of lithologic material and season with pH values ranging from 4.20-5.60 and 3.31-5.42 in the A- and AB-horizons, respectively.

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Author Biographies

Emmanuel Onweremadu, Federal University of Technology, Owerri, Nigeria

Department of Soil Science and Technology

Bernadine Aririguzo, Federal University of Technology, Owerri, Nigeria

Department of Soil Science and Technology

Nnaemeka Okoli, Federal University of Technology, Owerri, Nigeria

Department of Soil Science and Technology

Isaiah Afangide, Federal University of Technology, Owerri, Nigeria

Department of Soil Science and Technology

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Published

2021-07-23

How to Cite

Onweremadu, E. ., Aririguzo, B., Okoli, N., & Afangide, I. . (2021). Temporal Variability of Soil Reaction Among Surface and Near-Surface Horizons of Soils of Dissimilar Lithology in a Humid Tropical Environment. International Journal of Environment, 10(1), 99–111. https://doi.org/10.3126/ije.v10i1.38532

Issue

Section

Research Papers