Assessment of Silting Degree and Usable Lifetime of Small Reservoirs

摘要: Statistical analysis of the parameters describing silting process in 53 small reservoirs, located 4 catchments different geographical regions, yielded a model explaining general relationships between mean annual ratio (SA) and intensity (Si), as defined by Ŝamov. The (Si) depends mainly on regional hydrological conditions capability drainage system to transport sediment, it was Ŝamov initial reservoir capacity (V0) volume sediment flowing into (R). Regional SA capacity–watershed area were also developed for water reservoirs four climatic i.e. Upper Vistula Basin, Rio Grande Basin North America, Puerto Rico Caucasus. It found that usable lifetime, determined where from 0.06 5.08%, ranged few dozen over 100 years. discovered determining lifetime using Pitt Thompson nomogram is impossible or subject considerable error. Copyright © 2015 John Wiley & Sons, Ltd. Resume L'analyse statistique des parametres decrivant le processus d'envasement dans petits situes quatre bassins versants de differentes regions geographiques, donne un modele expliquant les relations generales entre moyen annuel et l'intensite tel que definis par L'intensite depend principalement hydrologiques regionales la capacite d'un systeme transporter sediments. Elle ete definie comme rapport du au sediments s'ecoulant Les capacite/surface bassin versant ont egalement developpees pour ces d'eau (situes haut Vistule, en Amerique Nord, Porto Caucase Nord). Il constate duree vie utile, determinee superieur ou etait montre utile ne peut etre nomogramme Thomson, avec une erreur considerable. Ltd.