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首页> 外文期刊>International journal of soil science >Soil Quality Modeling of a Highly Acidic Eutric-tropofluvent Soil
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Soil Quality Modeling of a Highly Acidic Eutric-tropofluvent Soil

机译：高酸性Eutropofluvent土壤的土壤质量模拟

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This research aims at developing several regression models establishing the relationship between pH and other selected soil physio chemical properties , to predict the values of these selected properties in the polluted soils. The study took place at Umuagwo-Ohaji garri processing centre in three sampling pedons; A, B and C using the technique of stratified random sampling for sample collections of soil and monthly collection of the CME between May 2007 to September 2009. The three morphological land unit representing the pedons were linked with a transect before sampling. Pedon A is the background or the control unit, pedon B or the discharge point is the Cassava Mill Effluent (CME) receiving unit and pedon C is the down stream, 500 m away from pedon B. The study examined the CME and soil properties of the collected samples at 5 layers of 0-15, 15-30, 30-70, 70-100 and 100-150 cm, respectively and was determined using standard methods. The result showed high values of soil physio chemical properties (mainly the heavy metals) at pedon B and the value gradually declined down stream of pedon B and lowest was recorded in pedon A. Along the depth profile, virtually all the values of the soil properties increased with depth except %porosity which declined with depth. This suggests intense chemical illuviation within the pedons. The investigated soil properties were used to develop regression model between pH and other properties. PH relationship with heavy metals in pedons A and B showed positive linear relationships with their coefficient of linearity (R2) ranging between 0.70-0.92 while other soil physio chemical properties obeyed polynomial relationships at reasonably high coefficient of fitness. Polynomial models fitted the pH relationships virtually in all the selected physio chemical properties of pedon C. with the models; the values of the soil physio chemical properties in this circumstance could be assessed.
机译：这项研究旨在建立几个回归模型，以建立pH值与其他选定土壤理化性质之间的关系，以预测这些选定性质在污染土壤中的值。这项研究是在Umuagwo-Ohaji加里加工中心的三个采样脚架上进行的。 A，B和C在2007年5月至2009年9月之间使用分层随机抽样技术对土壤进行了采样，并每月对CME进行了采样。采样前，代表脚踏板的三个形态学土地单元与样带相连。 Pedon A是背景或控制单元，Pedon B或排放点是木薯粉废水（CME）接收单元，Pedon C是下游，距Pedon B 500 m。该研究检查了CME和土壤的特性分别在0-15、15-30、30-70、70-100和100-150 cm的5层收集样品，并使用标准方法进行测定。结果表明，在上土壤的理化性质（主要是重金属）具有很高的值，在gradually上逐渐下降，而在A上则最低。在深度剖面上，几乎所有土壤性质的值孔隙率随深度而增加，但孔隙率随深度而下降。这表明在脚踏板内有强烈的化学污染。所研究的土壤特性用于建立pH和其他特性之间的回归模型。 A，B脚架中重金属的PH关系呈正线性关系，其线性系数（R2）在0.70-0.92之间，而其他土壤理化性质在合理的较高适应系数下服从多项式关系。多项式模型实际上将pedon C.的所有选定的理化性质与pH关系进行拟合;在这种情况下可以评估土壤理化性质的值。

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