How are slash and burn farming techniques bad for the triad
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Even without prior harvest of aboveground vegetation, slash-and-burn agriculture on oligotrophic tropical soils is only sustainable for short periods, typically 2รขยย3 years. However, mature forests on the same soils maintain continuously high productivity. How can this be?
In your own words, Describe the evolution of agricultural techniques and developments from hunting and gathering to subsistence farming, to specializations like pastoralism and mono-cropping, and so on.
