M.S. Department of Civil Engineering, Razi University, Kermanshah, Iran.
Water Environ Res. 2018 Apr 1;90(4):307-321. doi: 10.2175/106143017X15131012152834.
The hydrodynamics and water quality of Ilam reservoir, consisting of three main inlet branches and two outlets, was simulated with the CE-QUAL-W2 model. After calibrating and verifying the numerical model, effects of various management scenarios (selective withdrawal, controlling water inflow, and their combinations) were investigated on thermal stratification and water quality. The total reduction of nutrient loads derived from the Chaviz and Ema rivers decreased the total phosphorus concentration. The chlorophyll a concentration of this scenario increased less than in other scenarios. Variation of the withdrawal elevation from the surface to the bottom significantly facilitated the heat conduction of the water column, therefore, the thermal and dissolved oxygen stratification was weakened. The best management scenario was a combination of water withdrawal from the bottom and surface and total reduction of nutrient loads derived from Chaviz and Ema rivers because of improving eutrophication, thermal, and dissolved oxygen stratification in Ilam reservoir.
采用 CE-QUAL-W2 模型对由三个主要进水支流和两个出水口组成的伊拉姆水库的水动力和水质进行了模拟。在对数值模型进行校准和验证后，研究了各种管理方案（选择性取水、控制入流以及它们的组合）对热分层和水质的影响。源自查维兹河和艾玛河的养分负荷总量减少降低了总磷浓度。与其他方案相比，该方案的叶绿素 a 浓度增加较少。从表面到底部的取水高程的变化显著促进了水柱的热传导，因此，热分层和溶解氧分层减弱。最佳管理方案是从底部和表面取水以及减少源自查维兹河和艾玛河的养分负荷总量的组合，因为这可以改善伊拉姆水库的富营养化、热分层和溶解氧分层。
