Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/44100
Title: In-Stream physical heterogeneity, rainfall aided flushing, and discharge on stream water quality
Authors: Gomes, PIA
Wai, OWH 
Keywords: Ephemeral streams
Physical heterogeneity
Stream discharge
Water quality
Issue Date: 2015
Publisher: Water Environment Federation
Source: Water environment research, 2015, v. 87, no. 8, p. 758-768 How to cite?
Journal: Water environment research 
Abstract: Implications of instream physical heterogeneity, rainfallaided flushing, and stream discharge on water quality control have been investigated in a headwater stream of a climatic region that has contrasting dry and wet seasons. Dry (low flow) season's physical heterogeneity showed a positive correlation with good water quality. However, in the wet season, physical heterogeneity showed minor or no significance on water quality variations. Furthermore, physical heterogeneity appeared to be more complementary with good water quality subsequent to rainfall events. In many cases stream discharge was a reason for poor water quality. For the dry season, graywater inputs to the stream could be held responsible. In the wet season, it was probably the result of catchment level disturbances (e.g., regulation of ephemeral freshwater paths). Overall, this study revealed the importance of catchment-based approaches on water quality improvement in tandem with in-stream approaches framed on a temporal scale.
URI: http://hdl.handle.net/10397/44100
ISSN: 1061-4303 (print)
1554-7531 (online)
DOI: 10.2175/106143015X14362865225997
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