Vulnerability of Tropical Rainforests. Description Occupies 2% of Earth’s surface (7% of land mass) Contains 50 -90% of all species 20% of all plant species.

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Presentation transcript:

Vulnerability of Tropical Rainforests

Description Occupies 2% of Earth’s surface (7% of land mass) Contains % of all species 20% of all plant species

Commercial Value Wood Fuel Mahogany and teak Potential for medical and pharmaceutical use of plant material Trade Rubber Latex Chicle Nuts Tourism and Ecotourism

Vulnerability? Most fertile and productive ecosystems Decomposition rates are very fast Nutrients are incorporated quickly into vegetation Land used as cattle ranching Leaches nutrients Decreases root holding capactiy Decrease in transpiration Changes weather patterns Areas become deserts

Ecological Value Photosynthesis and oxygen regeneration Water cycling and purification Climate control

Cultural Value Indigenous people have intrinsic rights Great knowledge and wisdom Plants life Medical uses of plants