Waterlogging Of Soil

Question 1

When is soil considered to be water logged?

Answer 1

When pore spaces In soil are occupied by water not air - insufficient amount of oxygen for plants to respire

Anaerobic conditions

Different plants need different levels of oxygen so no universal level fo oxygen

Question 2

What will lack of oxygen do to a plant?

Answer 2

Lack of oxygen in root zone of plants causes their root tissues to decompose.
Plants growth / development is stalled.

If anaerobic conditions still continue plant can die.

Question 3

Why are waterlogged conditions not that worst ??

Answer 3

Don’t last that long for plant to die.

Plants recommence respiring after water logged event has passed.
As long as soil conditions are moist

Question 4

What are 2 waterlogging types ?

Answer 4

Surface fed waterlogging

Ground fed waterlogging

Question 5

Surface fed water logging

Answer 5

Happens when precipitation, irrigation water or river flood water exceed combination of evapotranspiration and percolation so water stays on surface.

Question 6

Ground water fed logging.

Answer 6

Caused when rate of rising ground water is not matched by the rate of evapotranspiration.

Natural rise in groundwater