BIOL 350 Lecture Notes - Lecture 3: Arable Land, Soviet Central Asia
Document Summary
The major issue is most part of the earth is ocean : addressing the issue , limited land surface with limitations. Only 12% has no limitation and only 3% out of entire earth surface and these. Cultivated areas are where most of foods come from days they are almost already cultivated. Trends over the time : alarming one (great acceleration), numbers are significant, got this numbers out by cutting down the forest. Asiavs south america, carribean increased just over 40 years or less (big boost) Arable land per person: factor in the increased size of population, develop fertlizers (less people die and feed them fore) Minerals: great acceleration, almost doubled (almost 2 folds) but tin is decreased. Copper is not recycled and have been there for millennia. Recycling: we know how to od it but too busy for shopping. Secondary clattered damage of mineral extraction (good force land and good farm land)