Mind map
Soils
Map content
Soils
Porosity /pore space
- space between solids
- holds: water, dissolved nutrient, soil air
- affects water retension and drainage areation
- sand has more macropores however clay has greater porosity
- Macropores
- low water retension
- enhance areation
- high hydraulic conductivity (easily conduct water)
soil water
- rainfall - adding water to surface soil
- inflitration - moves into soil pores
- drainage - water starts flowing downwards
- water drains out of the root zone but some retained by soil through particle attraction to water
- saturated flow
- macro and micro pores filled with water
- lower soil horizons during and immediately after heavy rainfall
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- Mind Map on Soils, created by lulu zhang on 12/07/2017.
- Created by
- lulu zhang
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