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Smart Dir : free sites directory. Science Agriculture Soils Physics. Directory of Science Agriculture Soils Physics.

http://www.civl.port.ac.uk/projects/geotech/geo5.html

» 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.

http://www.usyd.edu.au/su/agric/ACSS/sphysic/intro.html

» 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.

http://www.ito.ethz.ch:16080/SoilPhys/Tracer_www/index.html

» Images Collection (ITÖ, ETH, Zürich) - A collection of images on soil physics: measurement methods, soil structure and preferential flow tracer experiments.

» iSOIL Project - A research project with an integrated approach, liking soil physics, geophysics, and digital soil mapping techniques. EU-FP7 collaborative project.

http://www.ito.ethz.ch/conferences/preferential-flow/

» Preferential flow and transport processes in soil - Lectures of the 2006 workshop on preferential flows in soils: Field measurements, pore scale processes, scaling issues, catchments approaches, models and model parametrisation.

http://soilandwater.bee.cornell.edu/research/pfweb/index.htm

» 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.

http://edis.ifas.ufl.edu/TOPIC_Soil_and_Water

» Soil and Water (e-dis, UFL) - An on-line course on soils and water: Irrigation, nutrient and pesticide transport, soil/water measurement methods, etc. University of Florida.

http://www.extension.umn.edu/distribution/cropsystems/DC3115.html

» Soil Compaction: Causes, Effects, and Control - A pedagogical document presenting causes and consequences of soil compaction (shallow or deep), and practices preventing it [University of Minnesota, Agriculture Extension].

» Soil Physics Division (SSSAJ) - Homepage of the Soil Physics Division of the Soil Science Society of America. Journals, meetings, mailing-list and soil physics links.

» Soil Physics (Oklahoma State University) - A collection of models for water flow and solute transport in soils, for scientists, decision makers and students (with theory presentation and exercises)

http://www.aquarien.com/sptutor/index.htm

» 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).

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