EVALUATING POTENTIAL ENVIRONMENTAL IMPACT OF INSECTICIDE APPLICATIONS IN A BOLL WEEVIL ERADICATION PROGRAM
| Autor: | G. J. Sabbagh, M. Gregory, X. Tan, G. W. Cuperus |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Irrigation
Ecology Environmental engineering Soil classification Boll Weevil Eradication Program complex mixtures chemistry.chemical_compound Diflubenzuron Agronomy chemistry Soil water Environmental science Water pollution Surface runoff Nonpoint source pollution Earth-Surface Processes Water Science and Technology |
| Zdroj: | Journal of the American Water Resources Association. 32:1027-1037 |
| ISSN: | 1752-1688 1093-474X |
| DOI: | 10.1111/j.1752-1688.1996.tb04071.x |
| Popis: | Concerns have been expressed about the potential insecticide contamination of regional water resources from a boll weevil eradication program in Oklahoma. A mathematical model and geographic information system techniques were utilized to evaluate the potential of insecticide leaching and runoff from a major proposed program area in the state. Different but equally likely weather patterns were generated, and potential insecticide losses associated with each pattern were predicted. Soil types and their locations within cotton areas were identified, and potential chemical losses from each soil were delineated. Model simulations indicated that azinphos-methyl and diflubenzuron could leach from some porous soils and that all insecticides suggested for use in the program could be lost to runoff. The predicted chemical movements with runoff were significantly higher on irrigated land than from non-irrigated land. Malathion demonstrated no leaching and low potential of runoff losses among the insecticides evaluated. |
| Databáze: | OpenAIRE |
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