lec5 - MIT OpenCourseWare http:/ocw.mit.edu 1.020 Ecology...

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MIT OpenCourseWare http://ocw.mit.edu 1 .020 Ecology II: Engineering for Sustainability Spring 2008 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms .
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Lecture 08_5 Outline: Closed Cycles, Nutrient Enrichment Motivation/Objective Develop a model to track nitrogen mass in dissolved, phytoplankton, and zooplankton compartments. Assess impact of nutrient enrichment. Approach 1. Define system, compartments, fluxes. Identify unknowns (dissolved nitrogen mass , phytoplankton nitrogen mass , and zooplankton nitrogen mass ) d N p N z N 2. Write mass balance equation for each compartment (rate form) 3. Relate terms in each balance eq. to unknowns and other inputs 4. Specify growth, predation, and other coefficients, solve the set of coupled mass balance eqs. for the unknowns (MATLAB) 5. Examine time-dependence of compartment masses with and without nutrient enrichment. Concepts and Definitions:
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lec5 - MIT OpenCourseWare http:/ocw.mit.edu 1.020 Ecology...

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