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http://dx.doi.org/10.14249/eia.2012.21.3.461

Preliminary Diagnosis for Pulsing Simulation of Low Trophic Ecosystem by Environmental Changes in Coastal Area  

Lee, Dae-In (Marine Environmental Impact Assessment Center, National Fisheries Research & Development Institute)
Publication Information
Journal of Environmental Impact Assessment / v.21, no.3, 2012 , pp. 461-468 More about this Journal
Abstract
In general, long-term changes of ecological factors take a pulse form in which they interact with other factors and go through a repeated increasing and decreasing cycle. The coupling of the two approaches the grid model and the box model in ecological modeling can lead to an in-depth understanding of the environment. The study analyzes temporal variations of major storages with an energy system model that formulizes effectively the relationships among nutrients, phytoplankton, and zooplankton in the Yellow Sea and the East China Sea. An increase of light intensity and standing stock of nutrient increase the magnitude and frequency of pulsing. Also, an immense reduction of nutrient concentration can cause extinction of the pulsing and bring about a steady state. It is concluded that the nutrient loads in freshwater discharge from the Yangtze affect the cycles of major ecological components as well as water quality variables and play an important role in the marine ecosystem.
Keywords
Pulse; Energy system model; Nutrient; Phytoplankton; Zooplankton; Yellow Sea and the East China Sea;
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Times Cited By KSCI : 2  (Citation Analysis)
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