Lecture5GlobalCyclingofCarbon

Lecture5GlobalCyclingofCarbon - Global Cycles Ecology is...

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Unformatted text preview: Global Cycles Ecology is The study of the distribution and abundance of organisms, AND the flows of energy and materials between abiotic and biotic components of ecosystems. Element Cycling Oxygen (O) Hydrogen (H) Nitrogen (N) Phosphorus (P) Potassium (K) Sulfur (S) Calcium (Ca) Sodium (Na) Magnesium (Mg) Manganese (Mn) Molybdenum (Mo) Cobalt (Co) Zinc (Zn) Aluminum (Al) Copper (Cu) Iron (Fe) others Carbon (C) 1. Nutrients, unlike energy, are retained within the ecosystem. Element Cycling 2. There is continual recycling between the organisms and the physical environment. 3. Biological and physical processes drive changes in element forms (and location) Element Cycling through Ecosystems oxidized = low energy reduced = high energy Global Compartments Air (Atmosphere) Water (Hydrosphere) Land (Lithosphere) Organisms (Biosphere) Global Compartments Plants Animals Detritus (dead organic) Microbes Air Water Soil Sediments Organic Compounds, Inorganic Compounds Water Cycle 97% of the water in the globe resides in the oceans 22% of precipitation occurs over land, and is greater than losses by evaporation and transpiration...
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Lecture5GlobalCyclingofCarbon - Global Cycles Ecology is...

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