EARTHSC 2B03 Study Guide - Midterm Guide: Pedogenesis, Parent Material, Canadian System Of Soil Classification
10 Dec 2013
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Chapter 1 review soil science is combination of geosphere, biosphere, hydrosphere and atmosphere cryosoils- permafrost systems are not in equilibrium. dynamic eq. because of climate change. September 9, 2013 look up soil profiles online. 0 horizon: biological diversity and plant growth. A- horizon: is the leaching profile, salts leach into soil except organic matter. A/b in urban environment are non-existent (when building the scrap till bedrock, then fill in with till soil is in peds (study of soil = pedology) When water enters soil it takes up air space. Metabolic activity of plant roots, microbes and soil fauna later the composition if soil air relative humidity approaches 100% unless soil is dry carbon dioxide in soil air is often several hundred times more concentrated than the. 0. 03% in atmosphere the amount and composition of air in soil is determined to a large degree by the water content of soil.
