+ And - Of Soil Drainagw Flashcards
1
Q
4 advantages
A
Improved soil structure
Improved aeration
Compaction less likely
2
Q
Improved soil structure
A
Greater root penetration - faster / further into soil
3
Q
Improved aeration
A
More favourable for microorganisms to thrive.
Organic matter is broken down into humus / nutrients.
Warmed soul can be sown earlier and more likely to germinate
4
Q
Name 3 disadvantage
A
Increase speed of throughflow
Wind erosion
Nitrate loss
5
Q
Increase in speed of throughflow in soil
A
Increase likelihood of flooding
6
Q
Wind erosion
A
Top soil subject to wind erosion is not protected
7
Q
Nitrate loss
A
Lead to eutrophication
Water draining flows into water course and enriches it will nitrogen / phosphorus - rapid growth of algae and death of fish as lack of o2 available in water
