Metamodels and Nonpoint Pollution Policy in Agriculture
AbstractInformed debate on agricultural nonpoint pollution requires evaluation of regional water quality in relation to management practices. It is prohibitive, in terms of cost and time, to run the site-specific process models for regional policy analysis. Therefore, a simplified and robust technique--metamodeling--is suggested to evaluate regional water quality. Data from an experimentally designed simulation of complex surface water and groundwater process models, PRZM and STREAM, are used to develop statistically validated metamodels. The estimated metamodels were integrated with a regional agricultural economic decision making model to evaluate the surface water and groundwater loadings of 16 major corn and sorghum herbicides. Spatial probability distributions are derived for herbicide concentrations exceeding the toxicity-weighted benchmark from the EPA. We estimate that 1.2 percent of the regional soils will lead to groundwater detection of atrazine exceeding 0.12 ?/L, which compares well with the findings of the EPA's groundwater monitoring survey. We find no-till practices to significantly reduce the surface water concentration of atrazine and other herbicides with less impact on groundwater contamination suggesting indirect gains to soil conservation policies. But we also note that an atrazine ban could lead to increased soil erosion, even with the conservation compliance provisions fully incorporated.
Download InfoTo our knowledge, this item is not available for download. To find whether it is available, there are three options:
1. Check below under "Related research" whether another version of this item is available online.
2. Check on the provider's web page whether it is in fact available.
3. Perform a search for a similarly titled item that would be available.
Bibliographic InfoPaper provided by Iowa State University, Department of Economics in its series Staff General Research Papers with number 531.
Date of creation: 01 Jan 1993
Date of revision:
Publication status: Published in Water Resources Research 1993, vol. 29 no. 6, pp. 1579-1587
Contact details of provider:
Postal: Iowa State University, Dept. of Economics, 260 Heady Hall, Ames, IA 50011-1070
Phone: +1 515.294.6741
Fax: +1 515.294.0221
Web page: http://www.econ.iastate.edu
More information through EDIRC
Other versions of this item:
- Aziz Bouzaher & Richard Cabe & Alicia L. Carriquiry & Philip W. Gassman & P. G. Lakshminarayan & Jason F. Shogren, 1992. "Metamodels and Nonpoint Pollution Policy in Agriculture," Center for Agricultural and Rural Development (CARD) Publications 92-wp97, Center for Agricultural and Rural Development (CARD) at Iowa State University.
You can help add them by filling out this form.
CitEc Project, subscribe to its RSS feed for this item.
- Kampas, Athanasios & White, Ben, 2003. "Probabilistic programming for nitrate pollution control: Comparing different probabilistic constraint approximations," European Journal of Operational Research, Elsevier, vol. 147(1), pages 217-228, May.
- Arik Sadeh, 2003. "Optimal Product Lifecycle and Partial Information with Active Learning," Computational Economics, Society for Computational Economics, vol. 21(1), pages 125-136, February.
- Wu, JunJie & Babcock, Bruce A., 2001.
"Spatial Heterogeneity and the Choice of Instruments to Control Nonpoint Pollution,"
Staff General Research Papers
1012, Iowa State University, Department of Economics.
- JunJie Wu & Bruce Babcock, 2001. "Spatial Heterogeneity and the Choice of Instruments to Control Nonpoint Pollution," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 18(2), pages 173-192, February.
- JunJie Wu & Bruce A. Babcock, 1996. "Spatial Heterogeneity and the Choice of Instruments to Control Nonpoint Pollution," Center for Agricultural and Rural Development (CARD) Publications 96-wp164, Center for Agricultural and Rural Development (CARD) at Iowa State University.
- Kampas, Athanasios, 2001. "Identifying Common Fallacies in the Choice of Environmental Taxes for Agricultural Pollution Control: The Absence of Transaction Costs and the Normality of Agricultural Pollutants," Agricultural Economics Review, Greek Association of Agricultural Economists, vol. 2(2), August.
- Aihoon, John Komo & Groenewald, Jan A. & von Bach, Helmke J. Sartorius, 1997. "Agricultural Salinization in the Olfants River at Loskop Valley, Mpumalanga," Agrekon, Agricultural Economics Association of South Africa (AEASA), vol. 36(3), September.
- Athanasios Kampas & Anna Vasilaki & Athanasios Petsakos & Angeliki Stefopoulou, 2013. "Irrigation Full Cost Assessment: The case of the Pinios Local Organization for Land Reclamation, Greece," Working Papers 2013-1, Agricultural University of Athens, Department Of Agricultural Economics.
- Swinton, Scott M. & Black, J. Roy, 2000. "Modeling Of Agricultural Systems," Staff Papers 11581, Michigan State University, Department of Agricultural, Food, and Resource Economics.
- Graham, Tennille, 2005. "On the Road to Better Management: An investigation into the benefits of managing the impacts of dryland salinity on roads," 2005 Conference (49th), February 9-11, 2005, Coff's Harbour, Australia 137921, Australian Agricultural and Resource Economics Society.
- Leung, Brian & Finnoff, David & Shogren, Jason F. & Lodge, David, 2005. "Managing invasive species: Rules of thumb for rapid assessment," Ecological Economics, Elsevier, vol. 55(1), pages 24-36, October.
- Archer, David W. & Shogren, Jason F., 2001. "Risk-indexed herbicide taxes to reduce ground and surface water pollution: an integrated ecological economics evaluation," Ecological Economics, Elsevier, vol. 38(2), pages 227-250, August.
- Galelli, S. & Gandolfi, C. & Soncini-Sessa, R. & Agostani, D., 2010. "Building a metamodel of an irrigation district distributed-parameter model," Agricultural Water Management, Elsevier, vol. 97(2), pages 187-200, February.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Stephanie Bridges) The email address of this maintainer does not seem to be valid anymore. Please ask Stephanie Bridges to update the entry or send us the correct address.
If references are entirely missing, you can add them using this form.