This is an introductory course to vadose zone hydrology. The course begins with different soil characteristics such as soil phases and mineralogy, and soil water content and potential. With the knowledge of soil physical properties the course moves to its core focus - the understanding of steady water flow and solute transport in unsaturated environment. The course combines the theory, lab measurements, and mathematical modelling (programs RETC and Hydrus 1-D). An excursion to the Research Institute for Soil and Water Conservation is also part of the course.
Předmět bude nahrazen kurzem Vadose zone hydrology (MG451P38).
Literature
Last update: Mgr. Tomáš Weiss, Ph.D. (09.10.2017)
Recommended Radcliffe, D., and J. Šimůnek (2010): Soil Physics with HYDRUS: Modeling and Applications, CRC Press, Taylor & Francis Group, ISBN-10: 142007380X, ISBN-13: 9781420073805, pp. 373.
J. Šimůnek, M. Šejna, H. Saito, M. Sakai, and M. Th. van Genuchten (2013): The HYDRUS 1D Software Package for Simulating the One Dimensional Movement of Water, Heat, and Multiple Solutes in VariablySaturated Media. Version 4.17. Technical Manual. (Dostupné na: http://www.pc-progress.com//Downloads/Pgm_Hydrus1D/HYDRUS1D-4.17.pdf <http://www.pc-progress.com/Downloads/Pgm_Hydrus1D/HYDRUS1D-4.17.pdf>)
Tindall, J. A., Kunkel, J. R. (1999): Unsaturated Zone Hydrology for Scientists and Engineers. (Dostupné na: http://wwwbrr.cr.usgs.gov/projects/GW_Unsat/Unsat_Zone_Book)
Daniel Hillel (2004): Introduction to Environmental Soil Physics.
Requirements to the exam
Last update: Mgr. Tomáš Weiss, Ph.D. (09.10.2017)
The credit is awarded, apart from the exam, for home assignments and for presentating a scientific paper.
The exam is written in the form of questions based on lectures and practical exercises. The final mark consists of the final test (60%) and the submitted assignments (40%).
The evaluation of the assignments is based on terminology (correct terminology in the right context), conclusion and discussion (!) (existence and accuracy of the statement, justification of the statement, data interpretation, deficiencies in measurement / modeling, suggestion of possible improvements), data collection and processing (accuracy of measurement, marking of data, units, processing, considering inaccuracy of measurement), conceptual model (!) (area, material, marginal and initial conditions, type of task / equation), calibration (justification for the use of individual calibration parameters).
Syllabus
Last update: Mgr. Tomáš Weiss, Ph.D. (09.10.2017)
1. introduction: soil phase, soil texture, soil mineralogy, soil structure 2. definition of unsaturated zone and definition of basic soil characteristics 3. humidity, suction pressure and their measurement 4. retention curve, its description and measurement 5. steady flow in unsaturated environment: theory and measurement 6. infiltration and drainage, flow modeling 7. flow modeling 8. flow modeling 9. transport processes: advection, diffusion, dispersion 10. preferential flow and dual permeability models 11. heat flow 12. excursion to the Research Institute for Soil and Water Conservation
