FrancoeurDagenaisPaquetteEtAl2021

Référence

Francoeur, X.W., Dagenais, D., Paquette, A., Dupras, J., Messier, C. (2021) Complexifying the urban lawn improves heat mitigation and arthropod biodiversity. Urban Forestry and Urban Greening, 60. (Scopus )

Résumé

Urban green infrastructures (GI) are important features of cities which provide many ecosystem services promoting citizens’ well-being. As space is often limited in cities for establishing new GI, it is important to optimize the contribution of ecosystem services of existing GI. The objective of this paper is to compare the performance of lawns to three more complex types of recently established common low-height urban green infrastructures (LHGI) in relation to two ecosystem services: heat mitigation and habitat for biodiversity. We collected data from 48 plots in a semi-controlled context in the Greater Montreal area (Canada) where we compared unmanaged sowed indigenous herbaceous vegetation (flower meadow), medium-sized hedgerow (hedgerow), highly maintained lawn (lawn) and naturally regenerated unmanaged shrub vegetation (natural). We quantified the contribution of plant structure and species diversity to the two ecosystem services, using surface temperature and arthropods morphospecies richness as indicators of heat mitigation and habitat for biodiversity. We also tested the use of the Mean Information Gain (MIG) computed from photos, a measure of complexity, as a possible indicator of LHGI performance. There were major differences in both surface temperature and arthropod morphospecies richness between lawns and the other three LHGI. Results showed that plant structure and diversity improved LHGI performance. Finally, MIG was not found to be usable as good LGHI indicator in our experimental context. This study shows that increasing plant structural complexity and/or diversity increases heat mitigation and habitat for arthropod biodiversity of LHGI. Given its extent in North America, complexifying the omnipresent urban lawns holds considerable potential for GI improvement. © 2021 The Authors

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@ARTICLE { FrancoeurDagenaisPaquetteEtAl2021,
    AUTHOR = { Francoeur, X.W. and Dagenais, D. and Paquette, A. and Dupras, J. and Messier, C. },
    JOURNAL = { Urban Forestry and Urban Greening },
    TITLE = { Complexifying the urban lawn improves heat mitigation and arthropod biodiversity },
    YEAR = { 2021 },
    NOTE = { cited By 0 },
    VOLUME = { 60 },
    ABSTRACT = { Urban green infrastructures (GI) are important features of cities which provide many ecosystem services promoting citizens’ well-being. As space is often limited in cities for establishing new GI, it is important to optimize the contribution of ecosystem services of existing GI. The objective of this paper is to compare the performance of lawns to three more complex types of recently established common low-height urban green infrastructures (LHGI) in relation to two ecosystem services: heat mitigation and habitat for biodiversity. We collected data from 48 plots in a semi-controlled context in the Greater Montreal area (Canada) where we compared unmanaged sowed indigenous herbaceous vegetation (flower meadow), medium-sized hedgerow (hedgerow), highly maintained lawn (lawn) and naturally regenerated unmanaged shrub vegetation (natural). We quantified the contribution of plant structure and species diversity to the two ecosystem services, using surface temperature and arthropods morphospecies richness as indicators of heat mitigation and habitat for biodiversity. We also tested the use of the Mean Information Gain (MIG) computed from photos, a measure of complexity, as a possible indicator of LHGI performance. There were major differences in both surface temperature and arthropod morphospecies richness between lawns and the other three LHGI. Results showed that plant structure and diversity improved LHGI performance. Finally, MIG was not found to be usable as good LGHI indicator in our experimental context. This study shows that increasing plant structural complexity and/or diversity increases heat mitigation and habitat for arthropod biodiversity of LHGI. Given its extent in North America, complexifying the omnipresent urban lawns holds considerable potential for GI improvement. © 2021 The Authors },
    AFFILIATION = { Université du Québec à Montréal, Canada; Université du Québec en Outaouais, Canada; Université de Montréal, Canada },
    ART_NUMBER = { 127007 },
    AUTHOR_KEYWORDS = { Green space; Heat island; Lawn; Mean information gain; Structural complexity; Turfgrass; Urban biodiversity; Urban green infrastructure },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1016/j.ufug.2021.127007 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85102635414&doi=10.1016%2fj.ufug.2021.127007&partnerID=40&md5=0165e8c5449b43be33c6328c189f7527 },
}

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