Reference.com Web Directory

Top » Science » Agriculture » Soils » Physics

Web Sites

Determination of the plastic limit and plasticity index for soil - The plastic limit is that moisture content of a soil at which it becomes too dry to be plastic, used together with the liquid limit to determine the plasticity index which when plotted against the liquid limit on the plasticity chart enables the classification of cohesive soils.

Field Soil Physics Course (Sydney University, ACPA) - Course on the measurement of soil physical properties in the field: Soil moisture, hydraulic conductivity, strength, electrical conductivity and temperature.

Hydropedology (IUSS Working Group) - International Union of Soil Science Working Group on Hydropedology. A multidisciplinary and multiscale approach of soil and water transfer.

Preferential Flow (Cornell University) - A pedagogical resource about preferential flow in soils, for educator, regulator and extension services. Preferential flow are fast water flow, often involved pollutant transport.

Tutorials in Soil Physics - These tutorials range in difficulty from college sophomore to the senior/graduate/postdoctoral level. They begin with the basics and extend to a new exact solution to Richards' equation for unsaturated horizontal and vertical flow.

Web Science - Interactive tutorials on soil taxonomy, texture and calculation of soil physical properties (New Mexico State University).