EESB05H3 Lecture Notes - Lecture 2: Soil Salinity, Soil Horizon, Eluvium
27 Sep 2016
School
Department
Course
Professor
Document Summary
Dynamic natural bodies having properties from the combined effect of climate and biotic activities, as modified by topography, acting on parent material over periods of time. Depending on the different process it goes through diff. soils. Water moving through ;rock is freezing in the winter and expanding in the summer: physical abrasion. Wind smashing into rocks: impacts of plants and animals. Trees an grow in rocks breaking them up. Biogeochemical weathering decomposition: rocks that have like weird colouring on them, vary depending on where you are, fig 2. 3 don"t have to memorize. But you can end up with chemical compounds or just rocks and sand from crushing rocks. Why does it matter? to forecast the future of soils for food purposes. The pedon: a fundamental unit of soil classification. All of the soils are relatively homogeneous. A pedon is a sample of the soil individual: the different layers are known as soil horizons.
