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Ren R 441 landscape models of soil formation
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catena
chain of soilsÂ
a series of distinct soils on a slope
result of pedogenic processes and how they vary as a result of changing slope
a toposequence?
soil taxa result from operation of a ______________ on the parent sediments
distinctive pedogenic regime
pedogenic regime
hydrological and geological processes occurring on a landscape scale
hydrological processes controlling lower slope soils related to: (3 things)
magnitude of surface and near-surface flow
ability to transmit flow
interaction with groundwater
specific dispersal area
how much water an area shedsÂ
*areas that receive a lot of water won't dispense a low*
western canada common salts? cations
magnesium
calcium
western canada common salts? anions
nitrate salts
sulfate salts
current distribution of pedogenic salts within the landscape correlated with what?
the distribution of soil profiles
spatial variability in long-term soil water balance =
spatial variability in distribution of soils and pedogenic salts
why are carbonates sensitive to pH?
carbonic acid helps dissolve carbonates and leach them down
gypsum
calcium sulfate
more soluble than carbonates
buried soils indicate what?
changes in original topography
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Author
hcunning
ID
324691
Card Set
Ren R 441 landscape models of soil formation
Description
landscape models of soil formation
Updated
2016-10-18T20:21:31Z
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