Reservoir impoundment influence on river flow regime

Author

Yang, Yinke ; Wang, Wenke ; Cheng, Donghui ; Yang, Hongbin

Author_Institution

Sch. of Environ. Sci. & Eng., Chang´an Univ., Xi´an, China

Volume

2

fYear

2011

Firstpage

1087

Lastpage

1089

Abstract

Reservoir impoundment can have significant impact on natural flow regime of rivers. This paper takes Quwa reach of Bailong River located in Zhouqu County, Gansu Province as the study area. Analysis is done on changes happened to the flow regime of Bailong River from the dam to Lingba Village in Quwa Township, after the Daronglijie hydropower plant was built in Zhouqu County. The result indicates that the natural velocity of flow in this reach is above 2.0 m/s, but it decreased to 0.5 m/s after the dam was built. The velocity of flow declined, river level went up and sediment transport capacity of river dropped significantly, which is a major cause of serious river channel sedimentation.

Keywords

dams; reservoirs; rivers; sedimentation; Bailong River; China; Daronglijie hydropower plant; Gansu Province; Lingba Village; Quwa Township; Quwa reach; Zhouqu County; dam; reservoir impoundment influence; river channel sedimentation; river flow regime; river level; sediment transport capacity; Fault location; Hydroelectric power generation; Reservoirs; Rivers; Rocks; Sediments; Bailong River; flow regime of rivers; reservoir impoundment;

fLanguage

English

Publisher

ieee

Conference_Titel

Water Resource and Environmental Protection (ISWREP), 2011 International Symposium on

Conference_Location

Xi´an

Print_ISBN

978-1-61284-339-1

Type

conf

DOI

10.1109/ISWREP.2011.5893203

Filename

5893203