Dams and reservoirs

Unlike large hydroelectric plants, micro-hydro systems do not require a dam and reservoir, which minimize their environmental damage. A portion of the river s flow is diverted to the micro-hydro intake. A settling tank may be used to allow silt to settle out of the water. A screen or bars screen out floating debris and fish. The water then flows through a channel, pipeline,... 

Prats J, Armengol J, Marce R, Sanchez-Juny M, Dolz J (2010) Dams and reservoirs in the lower Ebro river and its effects on the river thermal cycle. Hdb Env Chem DOI 10.1007/ 698 2010 68... 

Dams and Reservoirs in the Lower Ebro River and Its Effects on the River Thermal Cycle... 

Dams and reservoirs have been built in the last 100 years in vast numbers throughout many mountain areas. They serve different purposes, mainly irrigation, hydropower, water supply or flood control, or they aim at pursuing multipurpose functions. Effects on flow regime, for example shifts in summer and winter patterns, on sediment dynamics, and on other features of the aquatic ecosystems can be dramatic (cf. Sects. 2.2 in [11], this volume, 2 in [15], this volume). 

Water runoff and sediment load of many rivers in the 20th century were subject to strong human impact because of water withdrawal, dam and reservoir construction, and river flow regulation. 

MT annually. Current USEPA remediation alternatives range from leaving the existing system in place to total dam and reservoir sediment removal. However, it is not clear how well the consequences of such actions are understood. 

A less restrictive paragraph appears in California specs for drilling and grouting test holes at a dam and reservoir ... 

Government Dams and Reservoirs. Long-distance transfer of water, use of storage lakes, and the building of dams and reservoirs are being undertaken by the municipalitie. t, states, and Federal governments. Los... 

Human activities can affect this water cycle. Cutting vegetation can increase the rate of runoff, causing less water to become absorbed into the soil. Man-made dams and reservoirs increase the surface area available for water evaporation. Using more groundwater than can be replenished may deplete the aquifers and lead to water shortages. And society can contaminate the water in a wide variety of ways that 1 discuss in this chapter. 

What is the largest dam and reservoir project completed in the world to date How is it related to energy and food production What have been some of the environmental implications of this massive project ... 

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