Title
Comparison Of Models Of Simazine Transport And Fate In The Subsurface Environment In A Citrus Farm
Keywords
Citrus grove; Environmental impact assessment; Fuzzy multicriteria decision making; Groundwater modeling; Model selection; Pesticides
Abstract
Contamination of groundwater by agrochemicals is now widely recognized as an extremely important environmental problem. Modern agricultural practices involve the combined use of irrigation with the application of large amounts of agrochemicals to maximize crop yield. Due to flood irrigation and natural runoff, agricultural activities might generate soil, surface water and groundwater contamination problems and leaching of pesticides. Modeling of the transport and fate of pesticides, such as simazine, may help understand the long-term potential risk to the subsurface environment. This paper illustrates a comparative study via the use of three different pesticide transport simulation models and the applicability of those models in determining the groundwater vulnerability to pesticides contamination in a citrus orchard located at the Lower Rio Grande Valley (LRGV). The three models used in the study are the pesticide root zone model-3 (PRZM-3), the pesticide analytical model (PESTAN) and integrated pesticide transport modeling (IPTM). The concentration values obtained from all three models are in agreement, and they show a decreasing trend from the surface through the vadose zone. The problem is how to use this information and, specifically, how to combine the testimony of a number of experts into a single useful judgment. With the aid of the fuzzy multiattribute decision making method, PRZM-3 is deemed as the most promising one for such precision farming applications. © 2007 Elsevier Ltd. All rights reserved.
Publication Date
1-1-2008
Publication Title
Journal of Environmental Management
Volume
86
Issue
1
Number of Pages
https://v2.sherpa.ac.uk/id/publication/11372;Accepted Version;Institutional Repository; Subject Repository;12 Months;CC BY-NC-ND;;Must link to publisher version with DOI-
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1016/j.jenvman.2006.11.020
Copyright Status
Unknown
Socpus ID
35648965835 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/35648965835
STARS Citation
Chang, Ni Bin; Srilakshmi, K. R.; and Parvathinathan, G., "Comparison Of Models Of Simazine Transport And Fate In The Subsurface Environment In A Citrus Farm" (2008). Scopus Export 2000s. 11012.
https://stars.library.ucf.edu/scopus2000/11012