نمایش مختصر رکورد

dc.contributor.authorMisaghi, Farhaden_US
dc.contributor.authorNasrabadi, Mohsenen_US
dc.contributor.authorNouri, Maryamen_US
dc.date.accessioned1399-10-19T15:35:35Zfa_IR
dc.date.accessioned2021-01-08T15:35:36Z
dc.date.available1399-10-19T15:35:35Zfa_IR
dc.date.available2021-01-08T15:35:36Z
dc.date.issued2020-12-01en_US
dc.date.issued1399-09-11fa_IR
dc.date.submitted2020-07-13en_US
dc.date.submitted1399-04-23fa_IR
dc.identifier.citationMisaghi, Farhad, Nasrabadi, Mohsen, Nouri, Maryam. (2020). Application of SWAT Model to Simulate Nitrate and Phosphate Leaching from Agricultural Lands to Rivers. Advances in Environmental Technology, 6(1), 1-17. doi: 10.22104/aet.2020.4298.1214en_US
dc.identifier.issn2476-6674
dc.identifier.issn2476-4779
dc.identifier.urihttps://dx.doi.org/10.22104/aet.2020.4298.1214
dc.identifier.urihttp://aet.irost.ir/article_983.html
dc.identifier.urihttps://iranjournals.nlai.ir/handle/123456789/709527
dc.description.abstractIn the present study, the amount of nitrate and phosphate leaching from agricultural lands into the Zanjanrood River in Iran was simulated using the Soil & Water Assessment Tool (SWAT) model. The measured average monthly discharges at the Sarcham station were used to calibrate and validate the SWAT model, and the SWAT Calibration and Uncertainty Program (SWAT-CUP) model was applied to perform the uncertainty and sensitivity analyses. Three scenarios for the irrigation methods and five for the fertilizer rates were defined. The p-factor and r-factor were used for the uncertainty analysis, and two statistical indices of the coefficient of determination (R2) and Nash-Sutcliffe efficiency (NS) were utilized in the validation model. For the calibration of the monthly runoff at the basin's outlet, the coefficients of r-factor, p-factor, R2, and NS were obtained as 0.27, 0.11, 0.83, and 0.53, respectively. The results showed that by increasing the pressurized irrigation areas, the nitrate and phosphate pollutions in the river basin were not significantly affected. With regard to fertilizer rates, by reducing the consumption of urea and phosphate fertilizers up to 50%, the amount of nitrate and phosphate leaching into the Zanjanrood River was reduced up to 16.7% and 19.2%, respectively. On the other hand, an increase of 50% in fertilizer application increased nitrate and phosphate leaching into the river by 17.2% and 17.7%, respectively. In addition, by reducing the fertilization rate and preventing unnecessary fertilization by farmers, the pollution of water resources can be largely prevented.en_US
dc.format.extent1823
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoen_US
dc.publisherIranian Research Organization for Science and Technologyen_US
dc.relation.ispartofAdvances in Environmental Technologyen_US
dc.relation.isversionofhttps://dx.doi.org/10.22104/aet.2020.4298.1214
dc.subjectNitrateen_US
dc.subjectPhosphateen_US
dc.subjectFertilizeren_US
dc.subjectSWAT Modelen_US
dc.subjectmodeling and simulationen_US
dc.titleApplication of SWAT Model to Simulate Nitrate and Phosphate Leaching from Agricultural Lands to Riversen_US
dc.typeTexten_US
dc.typeResearch Paperen_US
dc.contributor.departmentDepartment of Water Engineering, University of Zanjan, Zanjan, Iran.en_US
dc.contributor.departmentDepartment of Water Science and Engineering, Arak University, Arak, Iranen_US
dc.contributor.departmentDepartment of Water Engineering, University of Zanjan, Zanjan, Iran.en_US
dc.citation.volume6
dc.citation.issue1
dc.citation.spage1
dc.citation.epage17
nlai.contributor.orcid0000-0001-8061-8836


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