change in land cover Flashcards
Ice sheets and glaciers
Lgm
-Extensive ice cover expanding over the northern hemisphere of Europe and Asia and North America
-Ice was found in Australia and more ice cover in central Europe, Central America and on the west coast of South America
There was a Patagonia ice sheet in the south.
ice sheet and glaciers
Hco
Ice cover contracted
ice sheet and glaciers present
Ice sheets and glaciers in high latitudes in the northern hemisphere as there is no land to form on in the southern hemisphere.
Fortses
Lgm
Small forest pockets near the equator
The older drier conditions and the presence of extensive ice sheets over parts of North America and northern Europe meant forests were less extensive
Much more density distributed in close proximity to the equator
forsets
hco
47% of land cover was forests
Forests expanded throughout the northern hemisphere and spread to all continents except antarctica
present forest
Relatively stable since hco
Human activities reducing forest distribution
Slightly less forest now forests globally is 31% whereas at the HCO 47%