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	Restoration of an incised mountain stream using artificial step-pool system
	Zhang K.
	2010
关键词	Artificial step-pool system benthic invertebrates fluvial morphology incised mountain stream restoration high-gradient streams flow resistance geomorphic significance bed morphology channels velocity rivers rehabilitation displacement communities
英文摘要	A field experiment using an artificial step-pool system was conducted to restore the Diaoga River, a seriously incised mountain stream in Yunnan-Guizhou Plateau, southwest China. Twenty-four artificial steps, designed to mimic natural step forms, were constructed on three stretches of about 260m length in the middle reach of the river. Channel topography, hydraulic features, aquatic habitats and stream ecology were monitored for 20 months. Following the construction of the artificial step-pool system, the stream bed development coefficient increased significantly. This indicates that actions helped to dissipate flow energy more effectively, enhancing the stability of the stream bed. The step-pools have effectively controlled the incision and stabilized the river morphology. In addition, they have created multiple habitats for different species and increased the habitat diversity. Improvement of the aquatic ecosystem is confirmed by increased density and taxa richness of benthic macro-invertebrates, which are used as an indicator species to evaluate stream ecology.
出处	Journal of Hydraulic Research
卷	48
期	2
页	178-187
收录类别	SCI
ISSN号	0022-1686
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/22523]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Zhang K.. Restoration of an incised mountain stream using artificial step-pool system. 2010.

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