Journal of Food, Agriculture and Environment
Vol 11,
Issue 2,2013
Online ISSN: 1459-0263
Print ISSN: 1459-0255
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Investigation of surface grain size in a mountainous gravel-bed creek in Taiwan using automated image analysis
Author(s):
Szu-Hsien Peng 1,2 *,
Chuan Tang 2Recieved Date: 2013-01-20, Accepted Date: 2013-04-22
Abstract:Most reaches of rivers in the mountainous regions of Taiwan are gravel-bed rivers. Thus, it is convenient to apply the digital image processing method for surface grain-size investigation of these rivers. The surface grain-size distributions (GSDs) in gravel-bed rivers are interesting for hydraulic engineers and others because of their role in regulating bed-load flux and GSDs, their values in environmental reconstruction, and their ecological significance for both invertebrates and fish spawning. Therefore, this research selected an area located in Nantou County, Taiwan, as the sample area to carry out a field test. We applied the automated image analysis, AIA method proposed by Sime and Ferguson to carry out a surface grain-size distribution survey 1. In addition, from the results of this field investigation and the GSDs, we expect to study the distribution of riffles and pools, and to explore the relationship between riffles/pools and ecological environments in the future.
Keywords:Grain size analysis,
digital image processing, gravel-bed riverJournal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 2
Category: Environment
Pages: 820-824
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