Question

high ________ with rugged surface and thin soil cannot support a large population?

Answer 1

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Soil erosion and population density

Accelerated erosion and excessive runoff are connected with a kind of development that throws the balance of the countryside out of kilter: clearance of fragile zones, denudation and compaction of soil through overgrazing, exhaustion of soil through intensive cropping without compensation from applications of organic matter and nutrients. If it is true that human activity increases erosion risks through ill-judged farming methods, there is hope that the present trend can be reversed: by improving infiltration to produce more biomass, and increasing plant cover to return more organic residue to the soil, thereby reducing the runoff, erosion and drainage that soon deplete tropical soils. In this context, soil conservation is not the land-use planner's main aim, but simply one component of a technological package to make possible the intensification of agricultural production vital to meeting this century's major challenge: to double production every ten years to keep pace with population growth in tropical countries.