نتایج جستجو برای: dam reservoirs

تعداد نتایج: 31736  

Journal: :اکو هیدرولوژی 0
مهری کاکی کارشناس ارشد مهندسی منابع آب، دانشگاه تبریز فرخ اسدزاده استادیار گروه علوم خاک، دانشکدۀ کشاورزی، دانشگاه ارومیه احمد فاخری فرد استاد گروه مهندسی آب، دانشکدۀ کشاورزی، دانشگاه تبریز

dam reservoirs supplies water resources for drinking, agriculture, and industry almost in all parts of iran. lack of proper utilization rules and unbalanced demands versus available water has led to many problems regarding to ineffective use of the water resources. precipitation and flow rate are stochastic phenomena. therefore, multi-step processes related to the water use efficiency should be...

Journal: :Water Resources Research 2021

Water quality in tropical rivers is changing rapidly. The ongoing boom of dam construction for hydropower one the drivers this change. In particular, stratification reservoirs induces oxygen deficits their deep waters and warmer surface water temperatures, which often translate into altered thermal regimes downstream river systems, with cascading consequences entire aquatic ecosystem. Operation...

Journal: :Journal of Hydraulic Engineering 2021

AbstractThe buildup of sediment deposits in reservoirs is a long-standing problem with serious consequences on the reservoirs’ functionality and ecology their river systems. In last two ...

ژورنال: علوم آب و خاک 2011
ابراهیم ولیزادگان, , حسین محمد ولی سامانی, , محمود شفاعی بجستان, ,

Reservoir sedimentation is an unavoidable problem which has unsuitable effects on reservoirs such as decreasing of reservoir useful volume, decreasing of dam stability, unsuitable operation of operational gates and penstocks and decreasing of flood control volume. The minimization of reservoir sedimentation is a nonlinear and constrained optimization problem. Constrains imposed include reservoi...

2014
J Dabrowski JM Dabrowski

Increasing demands for water, discharge of effluents, and variable rainfall have a negative impact on water quality in the Olifants River. Crocodile and fish mortalities attributed to pansteatitis, in Loskop Dam and downstream in the Kruger National Park (KNP), have highlighted the serious effects these impacts are having on aquatic ecosystems. Flag Boshielo Dam is a reservoir on the Olifants R...

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