Design approach for interceptor tile drains using hydrus
نویسندگان
چکیده
منابع مشابه
Comparison of Pesticide Transport Processes in Three Tile-Drained Field Soils Using HYDRUS-2D
The purpose of this study was to assess the transport of the herbicide bentazone [3-(1-methylethyl)-1H-2,1,3-benzothiadiazin-4(3H)one 2,2-dioxide] in three contrasting tile-drained cultivated field soils subject to otherwise similar experimental conditions. Observed drain discharge rates and chemical concentrations in the drainage water reflected the different transport processes at the three s...
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15 صفحه اولModified APEX model for Simulating Macropore Phosphorus Contributions to Tile Drains.
The contribution of macropore flow to phosphorus (P) loadings in tile-drained agricultural landscapes remains poorly understood at the field scale, despite the recognized deleterious impacts of contaminant transport via macropore pathways. A new subroutine that couples existing matrix-excess and matrix-desiccation macropore flow theory and a modified P routine is implemented in the Agricultural...
متن کاملLeaching of the Neonicotinoids Thiamethoxam and Imidacloprid from Sugar Beet Seed Dressings to Subsurface Tile Drains.
Pesticide transport from seed dressings toward subsurface tile drains is still poorly understood. We monitored the neonicotinoid insecticides imidacloprid and thiamethoxam from sugar beet seed dressings in flow-proportional drainage water samples, together with spray applications of bromide and the herbicide S-metolachlor in spring and the fungicides epoxiconazole and kresoxim-methyl in summer....
متن کاملIdentification of key climatic factors regulating the transport of pesticides in leaching and to tile drains.
BACKGROUND Key climatic factors influencing the transport of pesticides to drains and to depth were identified. Climatic characteristics such as the timing of rainfall in relation to pesticide application may be more critical than average annual temperature and rainfall. The fate of three pesticides was simulated in nine contrasting soil types for two seasons, five application dates and six syn...
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ژورنال
عنوان ژورنال: Ain Shams Engineering Journal
سال: 2018
ISSN: 2090-4479
DOI: 10.1016/j.asej.2018.07.001