NDLI: Environmental and social predictors of phosphorus in urban streams on the Island of Montréal, Québec

Content Provider	Springer Nature Link
Author	Pfeifer, Laura R. Bennett, Elena M.
Copyright Year	2011
Abstract	Researchers have identified the importance of social characteristics for understanding ecological patterns in cities but the use of these characteristics in urban stream research has yet to be fully explored. Urban development is currently the second-largest cause of stream impairment in North America due in part to nutrient loading. However, research into factors that influence nutrient concentrations in urban streams is lacking. We sampled seven streams on the island of Montréal daily to measure phosphorus (P) concentration and P flux in each stream. We then compared stream P concentration and flux to several watershed characteristics commonly used to predict stream nutrients (e.g., watershed imperviousness, land use, existence of a riparian buffer) as well as several socio-economic characteristics of the watersheds (e.g., average home value, median household income). Overall, impervious surface cover and measures of land use were most effective at explaining the variation in P concentration and P flux in streams on the island of Montréal, while the riparian buffer and socio-economic variables were less effective. However, dollars spent on fertilizer per hectare of residential land and percent residential land use became important predictors of stream P concentration when impervious surface cover was removed from the regression model. This suggests that after accounting for the impact of physical watershed characteristics, social factors may be important predictors of urban stream P concentration. The results of our study suggest that more research is needed to determine the role that socio-economic variables play with respect to urban stream P.
Starting Page	485
Ending Page	499
Page Count	15
File Format	PDF
ISSN	10838155
Journal	Urban Ecosystems
Volume Number	14
Issue Number	3
e-ISSN	15731642
Language	English
Publisher	Springer US
Publisher Date	2011-02-16
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Urban ecology Streams Phosphorus Nutrients Watershed Socio-economic Montréal, Québec Nature Conservation Ecology Environmental Management Urban Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology Urban Studies

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