Pore Size and Bulk Density as Mechanical Soil Factors Impeding Root Development

Soil Pore Characteristics, Hydraulic Conductivity and Soil Bulk Density as Influenced by Agroforestry and Grass Buffer Conservation Practices

Despite improvements in the use of soil conservation practices, crop rotation and nutrient management programs, significant concern still exists regarding soil erosion and nutrient losses in runoff from row crop production. In the US, states are required to implement water quality standards based on USEPA guidelines or other scientifically defensible methods (Ice and Binkley, 2003). Agroforestr...

Soil Pore Size and Geometry as a Result of Aggregate - Size Distribution and Chemical Composition

SOIL pore space and its intrinsic characteristics such as surface area, roughness, tortuosity, and connectivity are probably the most important factors controlling water and solute movement in soils. Interaggregate porosity is the result of the arrangement of the soil aggregates. These aggregates are composed of subunits, of which clay minerals and other colloids are the main components. The wa...

Swelling Bulk Density and its Application in Arya and Paris Model for Soil Moisture Curve Prediction

Development and Evaluation of a Numerical Model being able to Simulate Soil Pore Size Change

The aim of the thesis is to develop a numerical model based on first principles for the simulation of change of size of soil pores during drying of soft soil. This model is suitable for the type of soil consisting of clay with layered structure, such as Montmorillonite. In this study, the geometry of the soil pore is idealized by a triangle consisting of three sand grains and clay fabrics conne...

Lamina Cribrosa Pore Shape and Size as Predictors of Neural Tissue Mechanical Insult

Purpose The purpose of this study was to determine how the architecture of the lamina cribrosa (LC) microstructure, including the shape and size of the lamina pores, influences the IOP-induced deformation of the neural tissues within the LC pores using computational modeling. Methods We built seven specimen-specific finite element models of LC microstructure with distinct nonlinear anisotropi...