EES 1080 Chapter Notes - Chapter 5: Landscape Ecology, Nitrogen Cycle, Ecosystem Model
22 Jan 2018
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Document Summary
Systems: a network of relationship among part, elements, or components that interact and affect one another. Negative feedback: stabilizing system, most in nature (positive thing) Positive feedback: drives system towards extreme (negative thing), melting ice and continuing to open up unsee environment and a decline in surviving animals. Watershed: entire part of land that a river drains on. Eutrophication: an influx of nutrients is added to a lake, freshwater, salt water system ex) algae forms on top on the lake, cuts off sunlight and oxygen, no photosynthesis and abundance of co2. Gross primary production: assimilation of energy by autographs. Net primary production: energy that remains after respiration that is used to create biomass, after energy is used that"s the leftover to create biomass. Net primary productivity highest in wetlands, tropical rain forest, coral reefs, etc. Dead zone: an ecosystem undergone eutrophication and algae forms, where everything.
