Baywood Publishing Company
0047-2433
1541-3802
Journal of Environmental Systems
BWES
300323
http://baywood.metapress.com/link.asp?target=journal&id=300323
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000002000419720101
Number 4 / 1972
J42ATH7HG81R
http://baywood.metapress.com/link.asp?target=issue&id=J42ATH7HG81R
10.2190/U5QM-XY1Q-QX6P-MGNY
U5QMXY1QQX6PMGNY
4
Modeling Lead Pollution In a Watershed — Ecosystem
339
349
20020509
20020509
20020509
20020509
U5QMXY1QQX6PMGNY.pdf
http://baywood.metapress.com/link.asp?target=contribution&id=U5QMXY1QQX6PMGNY
4
Gary
L.
Rolfe
Amar
Chaker
John
Melin
Ben
B.
Ewing
Dept. of Forestry, University of Illinois
Dept. of Civil Engineering, University of Illinois
<p>An interdisciplinary study is currently in progress at the University of Illinois at Urbana-Champaign under a grant from the National Science Foundation RANN Program. Objectives of the study include understanding and modeling the movements and effects of heavy metals (initially lead) in the environment.</p><p>A model has been constructed which simulates the movements and predicts the accumulation points of lead in a 76-square mile watershed-ecosystem in Champaign County, Illinois. The model includes components of both aquatic and terrestrial ecosystems and represents the ecosystem by a network of nodes and branches where the nodes represent the components of the ecosystem in a general sense and the branches indicate possible transport mechanisms between nodes. Results of a two year simulation using a network of 36 nodes and 121 branches is presented.</p><p>The model provides a method for the study of pollutant transport and accumulation in ecosystems.</p>
A. A. B. Pritsker and R. R. Burgess, "The GERT Simulation Programs: GERTS III, GERTS III Q, GERTS IIIC, and GERTS IIIR," Department of Industrial Engineering, Virginia Polytechnic Institute, 1970.
S. H. Crandall, "Engineering Analysis," McGraw-Hill, New York, p. 41.
Hardy Cross, "Analysis of Flow in Networks of Conduits or Conductors," Bulletin No. 286, Engineering Experiment Station, University of Illinois.
S. J. Mason, "Feedback Theory: Some Properties of Signal Flow Graphs," Proceedings <i>IRE</i>, <b>41</b>(9), 1953.