Effect of Land Management on Soil Hydraulic Conductivity in Gidan Kwano, Niger State, Nigeria

J. Musa, Otuaro Ebierni Akpoebidimiyen, Pius Olufemi Olusegun Dada, J. Adewumi, Yahaya Usman Gupa
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引用次数: 2

Abstract

Hydraulic conductivity is one of the most important parameters for flow and transport related phenomena in soil and also a criterion for measuring soil ability to transfer water. There is concern arising from the suitability, efficiency and ease of the different measuring methods use under different land management practices. The purpose of this paper is to determine and evaluate soil hydraulic conductivity under different land management practices which include forest land (teak and Melina plantation), grassland and maize cultivated land using the constant head method. The measurement is at different depth of 0 - 15 cm, 15 - 25 cm, 25 - 50 cm, 50 - 75 cm. The limited means of each land use were used to compare the result obtained through statistical means. All tests were carried out using SPSS at a significance level of 0.05. An ANOVA test was conducted to check if each of the land use is significantly different. The soil in forest zone (Teak plantation and Gmalina plantation) had a significantly high bulk density as 1.7533 cm-3 and 1.6967 cm-3 respectively at depth 50 - 75 cm compared to the low bulk density in the grass, maize cultivated land as 1.5000 cm-3 and 1.4833 cm-3 respectively at depth 50 - 75 cm. However, soil hydraulic conductivity was significantly high in the grass site or soil at the surface with 2.8833 cm·h-1. Results obtained from the different land use serve as Knowledge of variability of soil that can assist in defining the best strategies for sustainable soil management through the provision of vital information for estimating soil susceptibility to erosion, hydrological modelling and efficient planning of irrigation projects.
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尼日利亚尼日尔州吉丹夸诺土地管理对土壤导水性的影响
导水率是土壤中流动和传输相关现象的最重要参数之一,也是衡量土壤输水能力的标准。在不同的土地管理实践中,使用不同的测量方法的适宜性、效率和易用性引起了人们的关注。本文的目的是使用恒定水头法测定和评估不同土地管理实践下的土壤导水性,包括林地(柚木和梅林纳种植园)、草地和玉米耕地。在0-15 cm、15-25 cm、25-50 cm、50-75 cm的不同深度进行测量。使用每种土地利用的有限平均值来比较通过统计方法获得的结果。所有测试均使用SPSS进行,显著性水平为0.05。进行方差分析检验,以检查每种土地利用是否有显著差异。森林地带(柚木种植园和Gmalina种植园)的土壤在50-75cm深度处的堆积密度显著较高,分别为1.7533 cm-3和1.6967 cm-3,而草地和玉米耕地在50-75 cm深度处土壤的堆积密度较低,分别为1.5000 cm-3和1.4833 cm-3。然而,草地或地表土壤的导水率均显著较高,达2.8833cm·h-1。从不同土地利用中获得的结果可作为土壤变异性的知识,通过提供重要信息来估计土壤易受侵蚀性、水文建模和灌溉项目的有效规划,有助于确定可持续土壤管理的最佳战略。
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