How Flooding Leads To Unique Characteristics

Question 0

In a mineral soil, saturation causes

Answer 0

Gleying or mottling due to the loss of oxidised forms of iron and magnese and the retention of reduced forms.

Question 1

Wetland soils are often anaerobic because of

Answer 1

Saturation for a significant part of the year.

Question 2

Characteristic odours are caused by production and

Answer 2

Accumulation of products of anaerobic metabolism, including sulfides, oxides of nitrogen, methane and organic matter in various decomp stages.

Question 3

Restrictions of rate of decomp result in wetland soils being

Answer 3

Highly rich in organic matter. Sometimes, the organic layer may be 10’s of metres thick.