Degree Type
Thesis
Date of Award
1993
Degree Name
Master of Science
Department
Agricultural and Biosystems Engineering
Abstract
Agriculture has been identified as the largest contributor of nonpoint source pollution of surface and ground water systems in the United States. In a 1986 Report to Congress, the Environmental Protection Agency (EPA) noted that routine agricultural activities is responsible for over 60% of the surface water pollution problems nationwide (EPA, 1990). Accelerated erosion of productive land, nutrients (primarily, nitrogen and phosphorus) and pesticide loading from agricultural runoff, and pathogens from feedlots and urban runoff and sewage are the primary causes of surface water quality impairments.
DOI
https://doi.org/10.31274/rtd-180813-238
Publisher
Digital Repository @ Iowa State University, http://lib.dr.iastate.edu
Copyright Owner
Hsiu-Hua Liao
Copyright Date
1993
Language
en
File Format
application/pdf
File Size
152 pages
Recommended Citation
Liao, Hsiu-Hua, "Evaluation and modeling of nonpoint source pollution using GIS techniques " (1993). Retrospective Theses and Dissertations. 309.
https://lib.dr.iastate.edu/rtd/309
