gley soil profile Flashcards
1
Q
above soil
A
moss, grass, reeds and small bushes
2
Q
Ao horizon
A
- shallow roots prevent nutrient recycling
- acidic mor humus which is only partly decayed
3
Q
A horizon
A
dark due to a slow breakdown of organic matter
4
Q
B horizon
A
- blueish/grey colour and the texture of clay-like mud
- Red/orange spots known as melting appear in areas where the soil dries out
- fragments of weathered rock are found in the B horizon due to excessive mixing
5
Q
lower B horizon
A
a layer of permafrost
6
Q
C/D horizon
A
parent material is impermeable clay
7
Q
additional
A
very little soil biota
no distinct horizons
