Evaluation and comparison of physical and hydraulic properties in different soil structures

Ramezani N., . and A. Landi, . and A. R. Barzegar, . and G. A. Sayyad, . Evaluation and comparison of physical and hydraulic properties in different soil structures. pp. 43-54. ISSN 1394-7990

Physical properties and various compounds of soil structure are reflected in different soil properties which affect the hydraulic properties of soil and consequently the flow of water and movement of contaminants. Therefore this study was conducted to measure physical and hydraulic properties in different structures of Silakhore Bala plain located in Lorestan province of Iran. The study was conducted under laboratory conditions on nine undisturbed soil columns with three different structures of granular blocky and massive with three replications for each column in a completely randomised design with different structures of the soil as the main factor. Physical parameters like soil particle size distribution bulk density total porosity mean weight diameter and also hydraulic parameters like saturated and unsaturated hydraulic conductivity and the number of waterconducting active pores in each column were measured. Chemical properties including organic matter content were measured too in different soil samples. The results showed that soil structure had a significant effect on physical and hydraulic parameters. Due to higher organic matter content porosity and stability of the structure granular soils had the highest value of for saturated and unsaturated hydraulic conductivity compared to blocky and massive structures. Soils with massive structure had the weakest structure in terms of physical and hydraulic properties.

Full text available from: Official URL: http://www.msss.com.my/mjss/Full%20Text/vol23/V23_...

Abstract

Physical properties and various compounds of soil structure are reflected in different soil properties which affect the hydraulic properties of soil and consequently the flow of water and movement of contaminants. Therefore this study was conducted to measure physical and hydraulic properties in different structures of Silakhore Bala plain located in Lorestan province of Iran. The study was conducted under laboratory conditions on nine undisturbed soil columns with three different structures of granular blocky and massive with three replications for each column in a completely randomised design with different structures of the soil as the main factor. Physical parameters like soil particle size distribution bulk density total porosity mean weight diameter and also hydraulic parameters like saturated and unsaturated hydraulic conductivity and the number of waterconducting active pores in each column were measured. Chemical properties including organic matter content were measured too in different soil samples. The results showed that soil structure had a significant effect on physical and hydraulic parameters. Due to higher organic matter content porosity and stability of the structure granular soils had the highest value of for saturated and unsaturated hydraulic conductivity compared to blocky and massive structures. Soils with massive structure had the weakest structure in terms of physical and hydraulic properties.

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Item Type:	Article
AGROVOC Term:	Soil structure
AGROVOC Term:	Soil hydraulic properties
AGROVOC Term:	Soil physical properties
AGROVOC Term:	Bulk density (soil)
AGROVOC Term:	Soil physicochemical properties
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8639

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