Hydrological-stenobiontic method for determining environmental flows from reservoir

In the practice of using river resources accumulated in reservoirs, there is a typical problem unreasonably large water intake for industrial-household needs to detriment aquatic ecosystem. An important tool balancing these links provide environmental flows based on comprehensive analysis functioning patterns. And terms progressing negative impact reservoirs integrity ecosystems, choice indicator hydrobiota calculation should be considered insufficiently substantiated. The solution this problem, by filling appropriate methodological niche, allowed substantiating hydrological-stenobiontic method determining flows. developed solutions are minimum possible values tolerance ecosystems stenobionts velocity. Five groups macrozoobenthos represent relevant target organisms. hydrological calculations presented paper data daily flow rate 80 years and results field studies channel depth low period. On basis, it was determined that lowland parts rivers, velocity tailwater at least 0.2 m/s. Comparison curve average monthly dynamics 95 % runoff availability with corresponding requirements most threatening period year ecosystem – summer water. For reservoir river, method, substantiate an increase volume 40 relative current one. It also estimated annual second volumes about 38 respective runoff. obtained close those found rivers China, Iran United States framework hydrological, hydraulic hydrobiological parameters