GEOG 3020 Study Guide - Final Guide: Externality, Land Degradation, Hydrosphere
22 Jun 2016
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Document Summary
Resources: any useful or valuable commodity drawn from the earth. Carrying capacity: number of organisms that can live in a long-term sustained balance with the environment at a reasonable quality of life. Ecosystem: groups of organisms linked together by energy ows in food chains. Geochemical systems: the global cycle of elements among the biosphere, lithosphere, hydrosphere and atmosphere sources. Biogeochemical cycle: system of transfer of nutrients such as nitrogen through the environment. Multiple-use resource: part of the environment that can simultaneously be used for a variety of land uses, e. g. tourism, environmental protection, resource extraction. Non-point source pollution: pollution generated by spatially-dispersed, usually nonspeci c. Point source pollution: water pollution emanating from a speci c source and released at a known discharge point. Pollution: degradation of the environment as a result of contamination of some sort. Biome: large, biogeographical unit of land characterized by a particular combination of animals and vegetation whose distribution is associated with a general climatic type.
