Field measurements for evaluating the RZWQM and PESTFADE models for the tropical zone of Thailand.

摘要: Abstract Evaluation of the field scale agricultural non-point source (NPS) simulation model against experimental data is an important step that must be considered before a can used as management tool. Therefore, present study focuses on testing two NPS models known RZWQM (Root Zone Water Quality Model) and PESTFADE (PESTicide Fate And Dynamics in Environment). These are to predict soil water content, metribuzin fate, transport sprinkler-irrigated soybean located at farm Asian Institute Technology (AIT) Pathumthani Province, Thailand. Field content residue adsorbed profile depths 0–10, 10–20, 30–40 cm different time periods were intensively measured by gravimetric method Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS), respectively. When comparing data, it was observed performed better simulating fcontent, whereas performance soil. Specifically, reasonable agreement existed between predicted for 0–10 depths. The slightly overpredicted 0–10 cm depth one day after herbicide application, prediction 10–20 accordance with values. relatively well 10–20 cm concentration However, poorly depth. results indicate when properly calibrated, both movement tropical zones.