Journal ArticleDOI
Fine-grained sediment in river systems : Environmental significance and management issues
Philip N. Owens,Ramon J. Batalla,Alison Collins,Basil Gomez,D. M. Hicks,A. J. Horowitz,G. M. Kondolf,Michael Marden,Mike Page,David H. Peacock,Ellen L. Petticrew,Wim Salomons,Noel A. Trustrum +12 more
TLDR
The authors examines how anthropogenic activity has caused significant changes in the quantity and quality of fine-grained sediment within river systems, using examples of: land use change in New Zealand; the effects of reservoir construction and management in different countries; the interaction between sediment dynamics and fish habitats in British Columbia, Canada; and the management of contaminated sediment in USA rivers.Abstract:
Fine-grained sediment is a natural and essential component of river systems and plays a major role in the hydrological, geomorphological and ecological functioning of rivers. In many areas of the world, the level of anthropogenic activity is such that fine-grained sediment fluxes have been, or are being, modified at a magnitude and rate that cause profound, and sometimes irreversible, changes in the way that river systems function. This paper examines how anthropogenic activity has caused significant changes in the quantity and quality of fine-grained sediment within river systems, using examples of: land use change in New Zealand; the effects of reservoir construction and management in different countries; the interaction between sediment dynamics and fish habitats in British Columbia, Canada; and the management of contaminated sediment in USA rivers. The paper also evaluates present programmes and initiatives for the management of fine sediment in river systems and suggests changes that are needed if management strategies are to be effective and sustainable. Copyright © 2005 John Wiley & Sons, Ltd.read more
Citations
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Understanding the influence of suspended solids on water quality and aquatic biota
Gary Bilotta,Richard E. Brazier +1 more
TL;DR: This review suggests that high-resolution turbidity monitoring should be supplemented with direct, measurements of SS, and SS should also be characterised in terms of their particle-size distribution and chemical composition, to improve the understanding of the effects of SS on aquatic organisms.
Journal ArticleDOI
Effects of Agricultural Drainage on Aquatic Ecosystems: A Review
TL;DR: In many agricultural regions, more than 80% of some catchment basins may be drained by surface ditches and subsurface drain pipes (tiles), which has significant effects on channel morphology, instream habitats for aquatic organisms, floodplain and riparian connectivity, sediment dynamics, and nutrient cycling as discussed by the authors.
Journal ArticleDOI
Sustainable sediment management in reservoirs and regulated rivers: Experiences from five continents
G. Mathias Kondolf,Y. Gao,George W. Annandale,Gregory L. Morris,Enhui Jiang,Junhua Zhang,Yongtao Cao,Paul A. Carling,Kaidao Fu,Qingchao Guo,Rollin H. Hotchkiss,Christophe Peteuil,Tetsuya Sumi,Hsiao-Wen Wang,Wang Zhongmei,Zhilin Wei,Baosheng Wu,Caiping Wu,Chih Ted Yang +18 more
TL;DR: In this article, the authors summarized collective experience from five continents in managing reservoir sediments and mitigating downstream sediment starvation, and recommended that these sediment management approaches be utilized where possible to sustain reservoir capacity and minimize environmental impacts of dams.
Journal ArticleDOI
The impacts of fine sediment on riverine fish
TL;DR: In this paper, the authors identify the causal mechanisms that underpin the observed negative response exhibited by fish populations to enhanced fine sediment loads, and the variability across different fish species across different families.
Journal ArticleDOI
Importance of low-flow and high-flow characteristics to restoration of riparian vegetation along rivers in arid south-western United States
TL;DR: In this article, the authors studied the influence of low-flow and high-flow components of the surface and groundwater flow regimes on riparian vegetation in the Sonoran Desert region of the United States.
References
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Journal ArticleDOI
Geomorphic/Tectonic Control of Sediment Discharge to the Ocean: The Importance of Small Mountainous Rivers
TL;DR: In this paper, data from 280 rivers discharging to the ocean indicates that sediment loads/yields are a log-linear function of basin area and maximum elevation of the river basin.
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TL;DR: This chapter discusses interactions with Ligands, Particulate Matter and Organisms, and Metal Interaction with Organisms in Natural Systems, as well as Metal Concentrations in Sediments and the Transport of Metals.
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The role of phosphorus in the eutrophication of receiving waters: a review
TL;DR: It is best to measure and regulate total P inputs to whole aquatic ecosystems, but for an easy assay it is hest to measure total P concentrations, induding particulate P, in surface waters or NIP atomic ratios in phytoplankton.
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Metals in the hydrocycle
Wim Salomons,Ulrich Förstner +1 more
TL;DR: In this paper, the authors studied the relationship between metal oxides and organic compounds and found that oxides are more likely to interact with organic compounds than with other organic compounds in the environment.
Journal ArticleDOI
PROFILE: Hungry Water: Effects of Dams and Gravel Mining on River Channels
TL;DR: Management of sand and gravel in rivers must be done on a regional basis, restoring the continuity of sediment transport where possible and encouraging alternatives to river-derived aggregate sources.
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