2668844
Description
Mind Map by clarkdavid1, updated more than 1 year ago
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Created by clarkdavid1
almost 9 years ago
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Podzols
- Accumulation of iron pan caused by minerals
washed from A-horizon crystallising back out of
solution - zone of illuviation
- Causes waterlogging
- Causes waterlogging
- Low temperatures
- Little mixing due to absence of biota
- distinct horizons
- distinct horizons
- Little mixing due to absence of biota
- Leaf litter =Pine needles
- breakdown slowly due to low temps
- Thin layer of Mor humus
- Acidic/dark
- Acidic/dark
- Thin layer of Mor humus
- breakdown slowly due to low temps
- Coniferous woodland
- Shallow roots
- Shallow roots
- Precipitation exceeds evaporation
- Leaching leaves A-horizon a pale ash-grey colour - zone of
eluviation
- Leaches out organic matter and leaves a gritty texture
- Leaches out organic matter and leaves a gritty texture
- Leaching leaves A-horizon a pale ash-grey colour - zone of
eluviation
- B- horizon = darker zone of organic
decomposition, stained from iron pan above
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