Sedimentation of Rivers, Reservoirs and Canals
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چکیده
منابع مشابه
Analysis of the Earth Dams Function against the Effects of Long-Term Deposition in Reservoirs (Polrood Earth Dam-Guilan Province)
Estimation of sediment transport load due to erosion in river basins is one of the issues which is indispensable for many projects related to water resources, soil and damps construction. With regards to the phenomenon of erosion and transmission Sedimentation in rivers has always led to deformation in the seaboard and sedimentation, so the management and planning in bank of rivers is important...
متن کاملExperimental Consideration on Height and Distance Effects of Consecutive Small Dam in Trapping of Sedimentation
Sediment transport is one of the important indicators of rivers in natural conditions, which is affected by the change in geometric and flow characteristics, and is reflected in the alignment or sedimentation of different river routes. Therefore, providing suitable solutions for sediment control and fixing the longitudinal slope of the substrate and preventing sediment transport from upstre...
متن کاملTrends in nutrient and sediment retention in Great Plains reservoirs (USA).
Reservoirs are artificial ecosystems with physical, chemical, and biological transitional characteristics between rivers and lakes. Greater water retention time in reservoirs provides conditions for cycling materials inputs from upstream waters through sedimentation, biological assimilation and other biogeochemical processes. We investigated the effects of reservoirs on the water quantity and q...
متن کاملLimnological and ecotoxicological studies in the cascade of reservoirs in the Tietê River (São Paulo, Brazil).
An evaluation was made of the quality of samples of water and sediment collected from a series of reservoirs in the Tietê River (SP), based on limnological and ecotoxicological analyses. The samples were collected during two periods (Feb and Jul 2000) from 15 sampling stations. Acute toxicity bioassays were performed using the test organism Daphnia similis, while chronic bioassays were carried ...
متن کاملOrganic carbon burial efficiency in a subtropical hydroelectric reservoir
Hydroelectric reservoirs bury significant amounts of organic carbon (OC) in their sediments. Many reservoirs are characterized by high sedimentation rates, low oxygen concentrations in bottom water and a high share of terrestrially derived OC, and all of these factors have been linked to a high efficiency of OC burial. However, investigations of OC burial efficiency (OCBE, i.e., the ratio betwe...
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