GEOL 1340 Lecture Notes - Lecture 37: Phosphorus Cycle, Lithosphere, Dead Oceans
28 Nov 2016
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Document Summary
Ecosystem: a self-sustaining assocation of living plants and animals and their physical. Ecology: study of the relationships btwn organisms and their environment and among the. Biogeography: study of the distribution of plants and animals various ecosystems. Richness of species processes: role of plants. Extract inorganic chem from soil and produce organic matter. Net primary productivity: amt of stored chem e that community generates: role of animals. Secondary eat other carnivores: decomposers and soil chem. Return chem by plants and animals to soil. Absorption of chem from groundwater and atm: abiotic ecosystem components. Ecosystem requires flow of e and cycling of nutrients and water. Air and soil t determine rates chem reactions proceed. >99% in limestone and shale: carbon in earth systems. Most o in lithosphere: human interference with o and c cycles. Use of cfcs result in ruining ozone. N can"t be used by multicellular life. Lightening strikes and bacteria convert n to compounds.
