IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 4 - HYDRO-ENVIRONMENT : Habitat Suitability of Tor Sinensis in the Middle Reach of the Lancang River
Habitat Suitability of Tor Sinensis in the Middle Reach of the Lancang River
Author : Yujun Yi, Xi Chen and Caihong Tang
The Lancang-Mekong River, the reach in China is called Lancang River, is the most important international river in Southeast Asia. The Lancang River basin is the area with abundant species resource and biodiverse. As the high hydraulic slope, the mainstream has significant potential as a source of hydropower. Cascade hydropower dams constructed on the mainstream has brought great economic benefit. However, the physical habitat of fishes, include rare species and fishes with economic value, have been affected. The Tor sinensis is an endemic and economically important fish. Considering the spawning characteristics of the fish, a habitat suitability index model (HSI) was established by coupling a one-dimensional (1-D) mathematical model and habitat suitability function. Based on the simulated result of the HSI model, Weighted Usable Areas for adult (WUA ) and spawning (WUA ) were obtained. The d s simulation result show that dam construction influenced the WUA by altering the discharge, flow s velocity, nutrients, and water quality to some extent. The impacts of reservoir operation on WUA are d significant.
File Size : 394,675 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 18/07/2016
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