GEOG 204 Lecture Notes - Lecture 5: Shifting Cultivation, International Trade, Ecotourism
27 Mar 2018
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Document Summary
Now that we have road building technology its easy: most important things that forests do for us: they produce oxygen and take carbon from the atmosphere. 68 and 73 in text: who"s destroying the forests video worksheet. Agriculture: soy production (tropics), wheat/grain (temperate zones) Shifting cultivation is an issue because of the low nitrogen in the soil. Unequal distribution of land (companies vs. poor) Process of deforestation: build a road driven by private industries (from government control to private industries) The amazon basin: agents of deforestation, cattle ranching, slash and burn agriculture, very often doesn"t allow for long enough fallow periods. Leaving the soil alone for 2-3 years in order for it to regenerate (so there can be nutrients in the soil). However, artificial fertilizers allow us to farm longer and it is expensive: you pass the threshold and it is impossible to get the soil back, hydroelectric dams, mining, lumber production, expansion of military bases.
