Ecological Footprints
What is the difference between carrying capacity and the footprint ?
Carrying capacity tells us how many individuals we can sustainably support in a enviroment. While the ecological footprint tells us how much land we need to sustainably provide for a certain population.
What factors do affect our ecological footprint?
Consumption, economy or population of a certain area.
What do humans need "land" for ?
Cropland. Grazing land. Forest for timber and fuel. Fishing ground. Forest for carbon sequiation.
Which one of a credetor or debator have the largest footprint?
Debator.
What is the definition of the ecological footprint?
It is a measure of the human demand on the earths ecosystems.
What does the ecological footprint tell us ?
It tells us the area of land needed to sustainably provide for a certain population and assimilate it's waste.
Give 3 examples of factors that are not part of the ecological footprint
Waste flows and Nuclear power.
How is the ecological footprint measured ?
We divide our food consumption (kgyr-1) by the mean food production per hectare of local arable land (kgha-1yr-1)
