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Model-based assessment of shading effect by riparian vegetation on river water quality
- Source :
-
Ecological Engineering . Jan2009, Vol. 35 Issue 1, p92-104. 13p. - Publication Year :
- 2009
-
Abstract
- Abstract: Shading by riparian vegetation affects incident solar radiation and water temperature in small- and moderate-size streams, and is thus an important component in the influence of forested riparian buffers on streams. The water quality effects of riparian shading are largely unknown. A simulation study was carried out to evaluate the effect of shading on six water quality variables in a moderate-size Belgian river stretch. A dynamic modelling approach making use of the River Water Quality Model No. 1 was chosen to represent the system. The scenarios developed indicate that shading may be an effective tool in controlling stream eutrophication (44% reduction in phytoplankton productivity in the simulated stretch) but has a limited effect on dissolved oxygen, chemical oxygen demand, nitrates, ammonium nitrogen, and phosphates. Results suggest that shading can effectively be implemented as a direct management strategy to improve water quality conditions in small and moderate-size watercourses that are exposed to excessive algal growth during summer periods. [Copyright &y& Elsevier]
- Subjects :
- *WATER quality
*RIVERS
*RIPARIAN areas
*VEGETATION management
Subjects
Details
- Language :
- English
- ISSN :
- 09258574
- Volume :
- 35
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Ecological Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 35926390
- Full Text :
- https://doi.org/10.1016/j.ecoleng.2008.09.014