Freshwater drainage canals in South Florida are utilized to manage water in agricultural, urban, and water conservation areas and, as a result, collect urban and agricultural storm runoff that is discharged into the Atlantic Ocean and Gulf of Mexico. Pesticides in this runoff may be toxic to the biota inhabiting these waters. This study evaluated the effects of contaminants in South Florida can...

introduction: due to sensitiveness of flow to roughness coefficient (rc), selection of this coefficient is important in earth canals designing purposes. precision selection of this coefficient is necessary for design and operation of earthen canals purposes. overestimation of the actual amount of this coefficient will cause an underestimation for flow velocity. accordingly, sedimentation in the...

Application of modern irrigation and drainage canals for efficient use of water resources is necessary. Thus , identifying the factors influencing farmers ’ attitudes toward participation in irrigation and drainage projects (IDP) is essential. The purpose of this study is to identify factors affecting attitude toward participation in IDP in Syakh Darenjan, Fars Province , Iran. Stratified rando...

The drainage system elements, namely, the canals, lose their initial design characteristics over time. In general, canals with unstable profiles are often in reclamation construction. problems of are, primarily, related to physical and mechanical properties soils, formation internal mechanical, as well chemical biological processes occurring by action natural conditions. Maximum stability is ch...

Multi-objective optimization was used to calibrate a regional surface water-groundwater model of the Yaqui Valley, a 6800 km2 irrigated agricultural region located along the Sea of Cortez in Sonora, Mexico. The model simulates three-dimensional groundwater flow coupled to onedimensional surface water flow in the irrigation canals. It accounts for the spatial distribution of annual recharge from...

application of modern irrigation and drainage canals for efficient use of water resources is necessary. thus , identifying the factors influencing farmers ’ attitudes toward participation in irrigation and drainage projects (idp) is essential. the purpose of this study is to identify factors affecting attitude toward participation in idp in syakh darenjan, fars province , iran. stratified rando...