EPS 80 Lecture Notes - Lecture 1: Pedosphere, English Muffin, Pedogenesis
29 Aug 2016
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As a system represents the pedosphere critical intersection. *know figure 1. 1 how the different spheres intersect and interact with the pedosphere. How the pedosphere interact with the intersection of all other spheres. Soil goes thru pedogenesis that distinguishes it from dirt. Soil is minerals, organisms, that come together in the pedosphere. Soil is a dynamic ecosystem constant change taking place (ground beneath your feet) Soil sustains life ground beneath me is alive organisms are pushing up so when u push down, it doesn"t sink. 3. filtering, buffering, degrading, immobilizing, and detoxifying: we depend on soil to clean up air, soil recycles, processes waste, redistributing things, detoxifying, mobilizing. 25% air, 25% water = all makes up the pore space. 45% mineral particles the dirt part (abiotic part) 5% organic matter (10% organisms, 10% roots, 80% humus (biotic part) organic matter vs. mineral particles organic matter has living things in it, moves.
