Disentangling the effects of urban form and socio-demographic context on street tree cover: A multi-level analysis from Montréal

Pham, Thi-Thanh-Hien; Apparicio, Philippe; Landry, Shawn et Lewnard, Joseph (2017). « Disentangling the effects of urban form and socio-demographic context on street tree cover: A multi-level analysis from Montréal ». Landscape and Urban Planning, 157, pp. 422-433.

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Résumé

Street trees provide a wide range of benefits for cities. Street tree cover (STC) is explained by urban form, social stratification and lifestyle theories that operate at multiple scales. In this paper we examine how the urban form (street characteristics), social stratification and lifestyle (socio-demographics) account for variations of STC in Montréal. Tree cover was identified from Quickbird images and then overlaid on street segments to compute the STC. Each street segment was nested in a census tract. We used 2-level models with mixed effects and interactions (between street attributes and socio-demographic variables) while introducing a spatial term. Political, socio-economic or other explanatory factors operating at the tract level can potentially explain 17.6% of the variation of STC. Overall, the street characteristics explained more variation in STC than the socio-demographic context. Lifestyle is less important than social stratification. Street length is positively associated with STC; street width and the percentage of duplexes and triplexes are negatively associated with STC, while construction age has a u-shaped effect on STC. Interactions show that STC is higher in expensive and highly-educated areas that have residential streets or streets with large setback (sidewalk). Areas predominantly comprised of low-income households could have higher or lower STC depending on the number of buildings and the percentage of duplexes and triplexes. Streetscape and socio-demographic contexts intertwine to create complex patterns of STC. Greening programs should be designed carefully according to local contexts since certain types of greening can lead to gentrification and displacement of low-income households.

Type: Article de revue scientifique
Informations complémentaires: Authors pre-print on any website, including arXiv and RePEC Author's post-print on author's personal website immediately Author's post-print on open access repository after an embargo period of between 12 months and 48 months Permitted deposit due to Funding Body, Institutional and Governmental policy or mandate, may be required to comply with embargo periods of 12 months to 48 months Author's post-print may be used to update arXiv and RepEC Publisher's version/PDF cannot be used Must link to publisher version with DOI Author's post-print must be released with a Creative Commons Attribution Non-Commercial No Derivatives License
Mots-clés ou Sujets: Street Trees ; Street Characteristics ; Socio-Economic Status ; Lifestyle ; Multi-Level and Mixed Models
Unité d'appartenance: École des sciences de la gestion > Département d'études urbaines et touristiques
Déposé par: Thi Thanh Hien Pham
Date de dépôt: 06 oct. 2016 12:41
Dernière modification: 31 oct. 2016 18:47
Adresse URL : http://www.archipel.uqam.ca/id/eprint/8930

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