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 : 36th Congress - The Hague (2015) ALL CONTENT : Flood risk management and adaptation : Riparian buffer hydrology: representing catchment-wide implementation and the influence on flood ris...
Riparian buffer hydrology: representing catchment-wide implementation and the influence on flood risk
EU and UK legislation advocates a sustainable approach to flood management, which has been a catalyst for further consideration of adopting natural processes and features to reduce flood risk. Riparian buffers are traditionally implemented to address water quality and diffuse pollution issues. Research to date has focused on this function, as well as their hydraulic properties, which can also affect flood risk. Intuitively, hydrological theory would suggest that riparian buffers: increase infiltration, intercept rainfall, enhance evapotranspiration and attenuate surface runoff (as well as several other hydrological functions) however; there is limited research and evidence to support that riparian buffer hydrology can reduce flood risk. Additionally, there is an ongoing debate about the spatial scale of effectiveness, optimal buffer width and event threshold whereby riparian buffers cease being effective. This paper examines: plot scale riparian buffer hydrology using empirical field data; the use of the physically based semi-distributed hydrological model, Soil and Water Assessment Tool (SWAT model); and the approach to incorporating the catchment-wide riparian buffer scenario, which reflects the riparian hydrological behaviour. The Tarland sub-catchment of the River Dee in Aberdeenshire, Scotland, is used as a study site and field data is utilised to establish the hydrological behaviour of riparian buffers to enable adequate representation in SWAT model, where data permits.
File Size : 740,805 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Flood risk management and adaptation
Date Published : 20/08/2015
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