Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Biodiversity impact assessment of building's roofs based on Life Cycle Assessment methods
https://orcid.org/0000-0001-5536-0466
Abstract To fight against the biodiversity loss and to take advantage of ecosystem services that nature can offer, urban planners integrate green spaces in urban projects. However to assess green spaces, attention is generally paid to local biodiversity (i.e. “in situ”) which concerns the plot on which buildings are constructed. The biodiversity impacted outside the construction site (i.e. “ex situ”) which concerns the extraction of materials, transportation and waste, is rarely associated to the project assessment. In this study, two endpoint Life Cycle Assessment (LCA) methods are applied: ReCiPe 2016 and Impact World + to assess a conventional roof and three different types of green roofs. As Life Cycle Inventory (LCI) data about urban plants are missing, we created new data to model the vegetation layer of green roofs by collecting information nearby plants nursery. This work shows that 1) extensive green roof generates the least biodiversity loss, 2) “ex situ” biodiversity is 10 times more impacted than “in situ” biodiversity, 3) the impact of the vegetation layer on the biodiversity loss is significant. LCA methods do not enable to cover all pressures threatening biodiversity and they also lack precision to assess “in situ” biodiversity. Nevertheless, their main strength is to consider “ex situ” biodiversity along the value chain of the studied systems. Coupling LCA with ecological expertise should improve the assessment by taking into account local specificities and both negative and positive impacts of a system (e.g. “in situ” biodiversity gains with green roofs).
Highlights Biodiversity impacts are calculated and compared for four roof systems. Two Life Cycle Assessment (LCA) methods are used for calculation. Both impacts, on (in situ) and outside (ex situ) construction site, are considered. Data about plants used on green roofs are collected to consider their impacts. Limits of LCA methods for biodiversity assessment are highlighted.
Biodiversity impact assessment of building's roofs based on Life Cycle Assessment methods
https://orcid.org/0000-0001-5536-0466
Abstract To fight against the biodiversity loss and to take advantage of ecosystem services that nature can offer, urban planners integrate green spaces in urban projects. However to assess green spaces, attention is generally paid to local biodiversity (i.e. “in situ”) which concerns the plot on which buildings are constructed. The biodiversity impacted outside the construction site (i.e. “ex situ”) which concerns the extraction of materials, transportation and waste, is rarely associated to the project assessment. In this study, two endpoint Life Cycle Assessment (LCA) methods are applied: ReCiPe 2016 and Impact World + to assess a conventional roof and three different types of green roofs. As Life Cycle Inventory (LCI) data about urban plants are missing, we created new data to model the vegetation layer of green roofs by collecting information nearby plants nursery. This work shows that 1) extensive green roof generates the least biodiversity loss, 2) “ex situ” biodiversity is 10 times more impacted than “in situ” biodiversity, 3) the impact of the vegetation layer on the biodiversity loss is significant. LCA methods do not enable to cover all pressures threatening biodiversity and they also lack precision to assess “in situ” biodiversity. Nevertheless, their main strength is to consider “ex situ” biodiversity along the value chain of the studied systems. Coupling LCA with ecological expertise should improve the assessment by taking into account local specificities and both negative and positive impacts of a system (e.g. “in situ” biodiversity gains with green roofs).
Highlights Biodiversity impacts are calculated and compared for four roof systems. Two Life Cycle Assessment (LCA) methods are used for calculation. Both impacts, on (in situ) and outside (ex situ) construction site, are considered. Data about plants used on green roofs are collected to consider their impacts. Limits of LCA methods for biodiversity assessment are highlighted.
Biodiversity impact assessment of building's roofs based on Life Cycle Assessment methods
https://orcid.org/0000-0001-5536-0466
Abstract To fight against the biodiversity loss and to take advantage of ecosystem services that nature can offer, urban planners integrate green spaces in urban projects. However to assess green spaces, attention is generally paid to local biodiversity (i.e. “in situ”) which concerns the plot on which buildings are constructed. The biodiversity impacted outside the construction site (i.e. “ex situ”) which concerns the extraction of materials, transportation and waste, is rarely associated to the project assessment. In this study, two endpoint Life Cycle Assessment (LCA) methods are applied: ReCiPe 2016 and Impact World + to assess a conventional roof and three different types of green roofs. As Life Cycle Inventory (LCI) data about urban plants are missing, we created new data to model the vegetation layer of green roofs by collecting information nearby plants nursery. This work shows that 1) extensive green roof generates the least biodiversity loss, 2) “ex situ” biodiversity is 10 times more impacted than “in situ” biodiversity, 3) the impact of the vegetation layer on the biodiversity loss is significant. LCA methods do not enable to cover all pressures threatening biodiversity and they also lack precision to assess “in situ” biodiversity. Nevertheless, their main strength is to consider “ex situ” biodiversity along the value chain of the studied systems. Coupling LCA with ecological expertise should improve the assessment by taking into account local specificities and both negative and positive impacts of a system (e.g. “in situ” biodiversity gains with green roofs).
Highlights Biodiversity impacts are calculated and compared for four roof systems. Two Life Cycle Assessment (LCA) methods are used for calculation. Both impacts, on (in situ) and outside (ex situ) construction site, are considered. Data about plants used on green roofs are collected to consider their impacts. Limits of LCA methods for biodiversity assessment are highlighted.
Biodiversity impact assessment of building's roofs based on Life Cycle Assessment methods
Brachet, Aline (Autor:in) / Schiopu, Nicoleta (Autor:in) / Clergeau, Philippe (Autor:in)
Building and Environment ; 158 ; 133-144
05.04.2019
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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