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Improvement and application of the PCPF-1@SWAT2012 model for predicting pesticide transport: a case study of the Sakura River watershed.
Pest Manag Sci. 2018 Nov; 74(11):2520-2529.PM

Abstract

BACKGROUND

The Soil and Water Assessment Tool combined with Pesticide Concentration in Paddy Field (PCPF-1@SWAT) model was previously developed to simulate the fate and transport of rice pesticides in watersheds. However, the current model is deficient in characterizing the rice paddy area and is incompatible with the ArcSWAT2012 program. In this study, we modified the original PCPF-1@SWAT model to develop a new PCPF-1@SWAT2012 model to address the deficiency in the rice paddy area and utilizing the ArcSWAT2012 program. Next, the new model was applied to the Sakura River watershed, Ibaraki, Japan in order to simulate the transport of four herbicides: mefenacet, pretilachlor, bensulfuron-methyl and imazosulfuron.

RESULTS

The results showed that the water flow rate simulated by PCPF1@SWAT2012 was similar with the observed data. The calculated Nash-Sutcliffe efficiency coefficient (NSE) (0.73) and percent bias (PBIAS) (-20.38) suggested satisfactory performance of the model. In addition, the concentrations of herbicides simulated by the PCPF-1@SWAT2012 model were in good agreement with the observed data. The statistical indices NSE and root mean square error (RMSE) estimated for mefenacet (0.69 and 0.18, respectively), pretilachlor (0.86 and 0.18, respectively), bensulfuronmethyl (0.46 and 0.21, respectively) and imazosulfuron (0.64 and 0.28, respectively) indicated satisfactory predictions.

CONCLUSION

The PCPF-1@SWAT2012 model is capable of simulating well the water flow rate and transport of herbicides in this watershed, comprising different land use types, including a rice paddy area. © 2018 Society of Chemical Industry.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Tu LH
Department of Agricultural and Environmental Engineering, United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo, Japan. Research Center of Climate Change, Nong Lam University, HoChiMinh, Vietnam.
Boulange J
Center for Global Environmental Research, National Institute for Environmental Science, Tsukuba, Japan.
Iwafune T
First Risk Assessment Division, Food Safety Commission Secretariat of Japan, Tokyo, Japan.
Yadav IC
Department of International Environmental and Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo, Japan.
Watanabe H
Department of International Environmental and Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo, Japan.

MeSH

AcetanilidesBenzothiazolesEnvironmental MonitoringHerbicidesJapanModels, TheoreticalPyridinesPyrimidinesRiversSulfonylurea CompoundsWater Pollutants, Chemical

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29656603

Citation

Tu, Le Hoang, et al. "Improvement and Application of the PCPF-1@SWAT2012 Model for Predicting Pesticide Transport: a Case Study of the Sakura River Watershed." Pest Management Science, vol. 74, no. 11, 2018, pp. 2520-2529.
Tu LH, Boulange J, Iwafune T, et al. Improvement and application of the PCPF-1@SWAT2012 model for predicting pesticide transport: a case study of the Sakura River watershed. Pest Manag Sci. 2018;74(11):2520-2529.
Tu, L. H., Boulange, J., Iwafune, T., Yadav, I. C., & Watanabe, H. (2018). Improvement and application of the PCPF-1@SWAT2012 model for predicting pesticide transport: a case study of the Sakura River watershed. Pest Management Science, 74(11), 2520-2529. https://doi.org/10.1002/ps.4934
Tu LH, et al. Improvement and Application of the PCPF-1@SWAT2012 Model for Predicting Pesticide Transport: a Case Study of the Sakura River Watershed. Pest Manag Sci. 2018;74(11):2520-2529. PubMed PMID: 29656603.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Improvement and application of the PCPF-1@SWAT2012 model for predicting pesticide transport: a case study of the Sakura River watershed. AU - Tu,Le Hoang, AU - Boulange,Julien, AU - Iwafune,Takashi, AU - Yadav,Ishwar Chandra, AU - Watanabe,Hirozumi, Y1 - 2018/06/01/ PY - 2018/01/29/received PY - 2018/03/27/revised PY - 2018/04/15/accepted PY - 2018/4/16/pubmed PY - 2018/11/9/medline PY - 2018/4/16/entrez KW - PCPF-1@SWAT2012 model KW - Sakura River watershed KW - model simulation KW - pesticide fate and transport KW - rice paddy SP - 2520 EP - 2529 JF - Pest management science JO - Pest Manag Sci VL - 74 IS - 11 N2 - BACKGROUND: The Soil and Water Assessment Tool combined with Pesticide Concentration in Paddy Field (PCPF-1@SWAT) model was previously developed to simulate the fate and transport of rice pesticides in watersheds. However, the current model is deficient in characterizing the rice paddy area and is incompatible with the ArcSWAT2012 program. In this study, we modified the original PCPF-1@SWAT model to develop a new PCPF-1@SWAT2012 model to address the deficiency in the rice paddy area and utilizing the ArcSWAT2012 program. Next, the new model was applied to the Sakura River watershed, Ibaraki, Japan in order to simulate the transport of four herbicides: mefenacet, pretilachlor, bensulfuron-methyl and imazosulfuron. RESULTS: The results showed that the water flow rate simulated by PCPF1@SWAT2012 was similar with the observed data. The calculated Nash-Sutcliffe efficiency coefficient (NSE) (0.73) and percent bias (PBIAS) (-20.38) suggested satisfactory performance of the model. In addition, the concentrations of herbicides simulated by the PCPF-1@SWAT2012 model were in good agreement with the observed data. The statistical indices NSE and root mean square error (RMSE) estimated for mefenacet (0.69 and 0.18, respectively), pretilachlor (0.86 and 0.18, respectively), bensulfuronmethyl (0.46 and 0.21, respectively) and imazosulfuron (0.64 and 0.28, respectively) indicated satisfactory predictions. CONCLUSION: The PCPF-1@SWAT2012 model is capable of simulating well the water flow rate and transport of herbicides in this watershed, comprising different land use types, including a rice paddy area. © 2018 Society of Chemical Industry. SN - 1526-4998 UR - https://www.unboundmedicine.com/medline/citation/29656603/Improvement_and_application_of_the_PCPF_1@SWAT2012_model_for_predicting_pesticide_transport:_a_case_study_of_the_Sakura_River_watershed_ DB - PRIME DP - Unbound Medicine ER -