Ecological role of hydrodynamic processes in the Dnieper reservoirs

被引：31

作者：

Dubnyak, S ^{[1
]}

Timchenko, V ^{[1
]}

机构：

[1] Ukrainian Acad Sci, Inst Hydrobiol, UA-254210 Kiev 210, Ukraine

来源：

ECOLOGICAL ENGINEERING | 2000年 / 16卷 / 01期

关键词：

hydrodynamics; currents; turbulent mixing; power release; wind waves; shallows; macrophytes; phytoplankton; water exchange; water management;

D O I：

10.1016/S0925-8574(00)00103-8

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

The results of an investigation of hydrodynamics as an abiotic component of the Dnieper reservoir ecosystems are discussed. On the basis of observation data, calculation, and mathematical modeling, the peculiarities of current regimes and the regularities of turbulent mixing processes on the shallow areas of the reservoirs were found. The transformation of release waves from hydroelectric power stations were also calculated and the inner water exchange caused by currents and water level fluctuation under these power releases and its influence on organic matter balance (by BODtot) in the shallows were estimated. The influence of the large decrease of water levels in the reservoirs upon macrophyte function and water quality formation was also analysed. The role of wind waves for phytoplankton functioning is illustrated. The possibilities of hydrodynamics management in the Dnieper reservoirs are also discussed. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：181 / 188

页数：8