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Soil Part 1

Practice this to memorize Soil Part 1 notes for Environmental Science!
Quiz by kailayi
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Last updated: May 31, 2022
First submittedMay 31, 2022
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Characteristics of Soil
Top layer of earth, organic particles + air + water + organic matter
Formation of Soil
weathering of parent material
Purposes of Soil
supports plants, habitat, affects topography, interacts with water cycle, engineering material, recycling nutrients, modify atmosphere
Components of Pedosphere (Soil)
lithosphere, atmosphere, hydrosphere, biosphere, critical zone
Critical zone
tops of plants to bottom of roots
Composition of Soil (varies by soil type)
10% roots, 10% organisms, 25% air, 25% water, 5% organic matter, 45% minerals, 80% humus
Soil Profile
O- organic - humus
A- topsoil - rich in organic matter
B- subsoil - little organic matter, mostly minerals
C- weathered bedrock
B - bedroot
Soil Texture
clay, silt, sand, gravel, loam
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