ENV100Y5 Lecture Notes - Pedogenesis, Layer Cake, Silt
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ENV100Y5 Full Course Notes
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Document Summary
Storage for carbons: carbon balance in peat, primary production stores carbon, decomposition releases carbon (just like a flux, where carbon comes in and carbon goes out) Interdisciplinary research project studying the influence of climate on carbon balance (and vice versa) Soil formation starts with bedrock: parent material= base geologic material of soil, bedrock- continuous mass of solid rock and is part of the earth"s crust). It is not considered a soil since it has no organic component to it. Answer is weathering: weathering= processes that break down rocks from parent material (rock) into smaller pieces of rocks, these processes involve physical (mechanical), chemical or biological weathering, physical (mechanical) = no chemical changes in the parent material. When the chemical interacts with the rock and breaks it down chemically and applies chemical changes to it. (water and gases: biological= organisms break down parent material.
