Soil physics & biology
23 important questions on Soil physics & biology
How could you improve a dry soil?
How could you improve a poor soil?
How could you improve an unstable soil?
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How could you improve a saline (salty) soil?
How could you improve an impermeable soil?
How could you improve an low bearing soil?
Where does AP stand for? (from a mineral horizon)
Which two types of Organic orizons are there?
On which number is the wilting point?
What is the H horizon?
What is the definition of clay redistribution?
How do soils form?
What happends within Weathering?
What happend with loose particles within the weathering phase?
Is weathering reversible? (omkeerbaar)
What happends within Erosion?
By which physical reactions is erosion influenced?
strong temperature fluctations (schommeling)
chemically unchanged
By which chemical reactions is erosion influenced?
chemically different
By which biological reactions is erosion influenced?
tree roots growth in cracks (boomwortelgroei in scheuren)
What happends with physical weathering and erosiveness?
- posibility for root growth
- water storage and underground transport (functions as a buffer, can prevent erosion)
- increased effect of chemical erosiveness via larger surfaces
What happends with chemical weathering and erosiveness?
gives formation of secondary minerals
What happends with biological weathering and erosiveness?
- smaller organisms, unicellular, funghi
- make nutrients available for plants e.g. Phosphate
- contribute to formation of clay-humus complex
Where does GIS stand for?
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