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Biology-Related Homework Help Environmental and Conservation Biology Topic started by: colleen on Aug 25, 2012



Title: In many parts of the Amazon Basin, farmers have cut down the tropical rain-fores
Post by: colleen on Aug 25, 2012
In many parts of the Amazon Basin, farmers have cut down the tropical rain-forest trees and planted crops. However, the farmers often abandon these croplands after a few years and move on. What are some possible reasons for this?


Title: Re: In many parts of the Amazon Basin, farmers have cut down the tropical rain-fores
Post by: duddy on Aug 26, 2012
Soils in the tropical rain forest are very nutrient-poor, in part because the nutrient capital of the forest is tied up in vegetation. Even if the trees are burned to release nutrients, the abundant rains quickly wash the "fertilizer" away.


Title: Re: In many parts of the Amazon Basin, farmers have cut down the tropical rain-fores
Post by: colleen on Aug 26, 2012
Thank you ;)