Sand dunes

Question 1

What is halosere?

Answer 1

Halosere is a succession in a saline environment

Question 2

What are sand dunes?

Answer 2

Sand dunes are accumulations of sand grains, shaped into ridges by the wind under gravity influence.

Question 3

Sand dunes sucession (In order)

Answer 3

1. The strand line
2. Embryo Dunes
3. Fore dunes
4. Yellow dunes
5. Fixed dunes
6. Dune Slack
7. Dune Scrup
8. Dune health
9. Woodland

Question 4

Describe sand dunes succession (vegetation, soil PH)

Answer 4

Plants gets more diverse, starting at pioneer plants at strand line to woodlands.

Soil PH has decreased from PH 8.5 to 4.5

Question 5

List me three human threats to sand dunes?

Answer 5

1. Removal of sand for mineral extraction
2. Drinking - Water abstraction
3. Pollution from agriculture - nutrient enrichment.