Simulating pesticide leaching and runoff in rice paddies with the RICEWQ-VADOFT model
| Autor: | Mara Gennari, Aldo Ferrero, L. Padovani, Martin W. Williams, Mark J. Cheplick, Ettore Capri, Zewei Miao, Francesco Vidotto, Marco Trevisan |
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| Rok vydání: | 2003 |
| Předmět: |
Environmental Engineering
Management Monitoring Policy and Law complex mixtures food Vadose zone Water Movements Humans Soil Pollutants Leaching (agriculture) Pesticides Waste Management and Disposal Water Science and Technology Environmental engineering Agriculture Oryza Rice water Models Theoretical Pollution food.food Leaching model Environmental science Soil horizon Paddy field Surface runoff Surface water Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 0047-2425 |
| Popis: | There is a current need to simulate leaching and runoff of pesticide from rice (Oryza saliva L.) paddies for assessing environmental impacts on a valuable agricultural system. The objective of this study was to develop a model for determining predicted environmental concentration (PEC) in soil, runoff, and ground water through the linkage of two models, rice water quality model (RICEWQ) and vadose zone transport model (VADOFT), to simulate pesticide fate and transport within a rice paddy and underlying soil profile. Model performance was evaluated with a field data set obtained from a 2-yr field experiment in 1997 and 1998 in northern Italy. The predictions of amount of pesticide running off from the paddy field and accumulating in the paddy sediment were in agreement with measured values. Leaching into the vadose zone accounted for approximately 19% of the applied dose, but only a small amount of chemical ( |
| Databáze: | OpenAIRE |
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