IDSB02H3 Lecture Notes - Lecture 6: Secondary Forest, Land Tenure, Reducing Emissions From Deforestation And Forest Degradation
18 Mar 2017
School
Department
Course
Professor
Document Summary
Explore contemporary issues, debates, trends, policy and practice, at the interface of environment and development. Organized around different ecosystems or environmental issues. In a tropical rainforest, trees create local water systems. Between (cid:1151) and of rainfall is water that has been transpired by forests immediately upwind. Classification is 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 there are some deciduous trees, but the soil never dries out. Tropical rainforests protect soils, reduce erosion and compaction. Tropical forests have larger aboveground biomass, while temperate forests have more organic matter and nutrients on the forest floor. Rates of decomposition are higher in temperate systems. Debris on soil surfaces and the diverse understory act like a sponge, which uptakes the surface water. The closed canopy shields soil from the high impact of large water droplets.
