IDSB02H3 Lecture Notes - Lecture 6: Secondary Forest, Surface Mining, Land Tenure
20 Feb 2017
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Document Summary
In a tropical rainforest, trees create local water systems just as much as they are created by it: for instance, between 1/3 and of rainfall is water that has been transpired by forests immediately upwind. Classification of rainforests: a function of rainfall and the balance between precipitation and evapotranspiration, two general common types of tropical forests: Humid: several months in a row where pet > precipitation, so some deciduous trees, but soil never dries out. Tropical forests and soil: tropical rainforests protect soils, reduce erosion and compaction, debris on soil surface and diverse understory acts like sponge, uptakes the surface water, closed canopy shield soil from high impact of large water droplets. If absent, then there is a large runoff potential. Rates of decomposition for tropical versus temperate systems. Pools of organic matter in tropical versus temperate systems. 2012: countries are encouraged to identify drivers of deforestation and forest degradation in the development of national strategies and action plans for.
