NDLI: Landscape and morphometric controls on water quality in stormwater management ponds

Content Provider	Springer Nature Link
Author	Chiandet, Aisha S. Xepoulos, Marguerite A.
Copyright Year	2016
Abstract	Stormwater management ponds (SWMPs) are used to mitigate the adverse effects of urbanization on water quality, and are increasing in numbers in the urban landscape. Given that these novel urban environments are becoming more ubiquitous and are being used as habitat by myriad flora and fauna, it is important to understand what controls water quality in SWMPs. We sampled 50 SWMPs and associated forebays in Southern Ontario, Canada for water quality to investigate the role of morphometric and landscape characteristics in determining water quality under baseflow conditions. SWMPs were characterized by extremely variable water quality, which was highly degraded compared to natural ponds. We found significant differences in water quality among varying ponds types, including ponds with different forebay designs and those without forebays. Ambient pond water quality was correlated with variables such as watershed imperviousness contributed by roads, sewershed area, and rainfall amount. We found that pond morphometry influenced nutrient concentrations, and that pond length, width, length: width ratio and surface area: perimeter ratio had the highest correlation with water quality. Over 80 % of SWMPs were found to show thermal structure, which often resulted in low dissolved oxygen, particularly at the sediment-water interface. These results will improve understanding of these new urban aquatic systems, including their suitability as habitat, and help managers improve pond nutrient removal efficiency.
Starting Page	1645
Ending Page	1663
Page Count	19
File Format	PDF
ISSN	10838155
Journal	Urban Ecosystems
Volume Number	19
Issue Number	4
e-ISSN	15731642
Language	English
Publisher	Springer US
Publisher Date	2016-05-03
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Water quality Urbanization Stormwater management ponds Nutrients Landscape effects Morphometry Urban habitat Urban Ecology Environmental Management Ecology Nature Conservation
Content Type	Text
Resource Type	Article
Subject	Ecology Urban Studies

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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