EVSC 220 Lecture Notes - Lecture 3: Groundwater Recharge, Hydraulic Conductivity, Soil Salinity
8 Dec 2018
School
Department
Course
Professor
Document Summary
Apply pore distribution relationship to permeability and hydraulic conductivity. Discuss e ects of groundwater recharge vs discharge on salinity. It is controlled by size and continuity of pores. Anything under 2 meters is considered sediment, it is not interacting with the. Permeability: inherent ability of a soil or sediment to transmit water. How fast water can potentially be moving through. A soil is a 3 phase system, that is at the surface interacting with plants and biota, the part of the unconsolidated material that support she plants. environmental or plants. Loess: depends on texture and amount of cementation. Gravel mixed with small sediments, the permeability drops. Ground water movement: know the scale of how fast it can be transmitted through sediment. Hydraulic conductivity: the actual rate of water transmission. Depends largely on water content of soil. Swelling in clays can further slow conductivity (smectites will swell) Water ow may bee vertical or lateral.
