soil textures w/ greater surface area have greater
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-water holding capacity
-retention of gases and dissolved chemicals
-nutrient release
-aggregation
-microbial activity
more surface area= more of the above
Acid dissolution
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, -weathering is accelerated by acid
-Acid enhances hydration & dissolution reactions
-Acid come from many sources:
water
root & microbe respiration-CO2 -> carbonic acid
organic acids from roots & decomposition of some minerals
pyrite-> sulfuric acid (mineral acids from decomposition of some minerals
polypedon
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group of similar pedons -
Pedon is a 3D and profile is a 2D
Colluvial
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gravity
water retention
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-ability of particles to hold on to water
,physical weathering
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-abrasion by water, ice, wind, temperature
stickiness
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-the moisture content at which the soil adheres to fingers and thumb
-sticky, non sticky ,etc
Soil Solum
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-horizons above the C(NOT C) ; the horizons affected by soil forming
factors
Residual/residuum(parent material classification
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in place
, parent material
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is the original rock or unconsolidated geologic material(regolith) from
which the soil is developed
-A soil may develop directly above the rock it is weathered from, it may
also form from regolith deposited by the action of wind, water, ice,
volcanoes, and gravity
igneous rocks
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-formed when molten lava cools
-more silica content
Profile #2 - Spodosol
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-water holding capacity
-retention of gases and dissolved chemicals
-nutrient release
-aggregation
-microbial activity
more surface area= more of the above
Acid dissolution
Give this one a try later!
, -weathering is accelerated by acid
-Acid enhances hydration & dissolution reactions
-Acid come from many sources:
water
root & microbe respiration-CO2 -> carbonic acid
organic acids from roots & decomposition of some minerals
pyrite-> sulfuric acid (mineral acids from decomposition of some minerals
polypedon
Give this one a try later!
group of similar pedons -
Pedon is a 3D and profile is a 2D
Colluvial
Give this one a try later!
gravity
water retention
Give this one a try later!
-ability of particles to hold on to water
,physical weathering
Give this one a try later!
-abrasion by water, ice, wind, temperature
stickiness
Give this one a try later!
-the moisture content at which the soil adheres to fingers and thumb
-sticky, non sticky ,etc
Soil Solum
Give this one a try later!
-horizons above the C(NOT C) ; the horizons affected by soil forming
factors
Residual/residuum(parent material classification
Give this one a try later!
in place
, parent material
Give this one a try later!
is the original rock or unconsolidated geologic material(regolith) from
which the soil is developed
-A soil may develop directly above the rock it is weathered from, it may
also form from regolith deposited by the action of wind, water, ice,
volcanoes, and gravity
igneous rocks
Give this one a try later!
-formed when molten lava cools
-more silica content
Profile #2 - Spodosol
Give this one a try later!
