Ecological Services of Urban Forest in Barcelona. Chaparro, L. & Terradas, J. .
Ecological Services of Urban Forest in Barcelona [link]Paper  abstract   bibtex   
[Excerpt: Summary] Forests and urban trees generally offer multiple services and environmental benefits to society. These trees are distributed into different land uses (in our case, land uses are defined from the third edition of Mapa Ecològic de Barcelona, 2006), ranging from forest environments and gardens, to densely built areas or polluted urban environments. The structure, and consequently the composition, of urban forest vary in these different land uses, whether public or private. Trees, and the functions and services that they offer, such as air quality improvement, carbon sequestration or temperature reduction, are directly influenced by management and actions that affect its structure (composition of species, number and location of individuals...). Therefore, proper management of urban green spaces may increase the environmental benefits of trees present in our city. The first step to improve the management of urban forest is to evaluate their current structure and benefits. [\n] On January 2009, began a study to quantify the effects of urban forest from different plots distributed throughout the entire city of Barcelona (including the areas of Montjuïc and Collserola), going from the most natural to the most urbanized zones. This assessment was mainly analyzed with the UFORE model (Urban Forest Effects), a computer program able to evaluate the structure of urban forest, like the species composition, tree density and numerous derived functions, such as storage and carbon sequestration, pollution reduction, volatile organic compounds formation, as well as other important services. [\n] [...] The report describes the structure of urban forest and the ecological benefits derived from this urban forest (shrubs and trees) of the city. Other environmental services such as noise pollution, water cycle and vulnerability of urban forest to the climate change, will be also treated. [\n] [...] [Conclusion] The vulnerability of urban vegetation to climate change is very difficult to quantify. However, in Barcelona's parks and gardens these changes could be mitigated by appropriate management. As well as increasing the permeable surface (which, as has been seen, is only 36%) and the tree cover, the health of trees must be improved with specific watering and maintenance systems depending on the requirements of the species to promote tree growth, make them less vulnerable to drought, and improve the benefits they bring to the climate and pollution elimination. This must be accompanied by measures tending to make maintenance activities more sustainable. [\n] This study, focusing on the environmental benefits of urban vegetation, has revealed very interesting results. However, in order to obtain other information, such as energy savings or which species best filter polluted air, it would have to be completed with ecophysiological studies, at least of the most abundant plant varieties in the city, as we already know that some species are more affected than others by warming and drought episodes. So, the choice of species through research and genetic selection could improve the state of the city's trees and ensure greater biodiversity, thereby reducing the risk from pests. Measures are also required to prevent the proliferation of invasive species in natural areas. [\n] Due to Barcelona's great population density, the environmental services of the urban vegetation play a modest role; by contrast their social services, not included in this study, are more important, due to the need (biophilia) varying from person to person, to enjoy the presence of vegetation in streets, balconies, gardens, etc. and the improvements to the landscape this involves.
@report{chaparroEcologicalServicesUrban2009,
  title = {Ecological Services of Urban Forest in {{Barcelona}}},
  author = {Chaparro, Lydia and Terradas, Jaume},
  date = {2009},
  pages = {96},
  institution = {{Centre de Recerca Ecològica i Aplicacions Forestals - Universitat Autònoma de Barcelona}},
  url = {http://mfkp.org/INRMM/article/14040392},
  abstract = {[Excerpt: Summary]

Forests and urban trees generally offer multiple services and environmental benefits to society. These trees are distributed into different land uses (in our case, land uses are defined from the third edition of Mapa Ecològic de Barcelona, 2006), ranging from forest environments and gardens, to densely built areas or polluted urban environments. The structure, and consequently the composition, of urban forest vary in these different land uses, whether public or private. Trees, and the functions and services that they offer, such as air quality improvement, carbon sequestration or temperature reduction, are directly influenced by management and actions that affect its structure (composition of species, number and location of individuals...). Therefore, proper management of urban green spaces may increase the environmental benefits of trees present in our city. The first step to improve the management of urban forest is to evaluate their current structure and benefits.

[\textbackslash n] On January 2009, began a study to quantify the effects of urban forest from different plots distributed throughout the entire city of Barcelona (including the areas of Montjuïc and Collserola), going from the most natural to the most urbanized zones. This assessment was mainly analyzed with the UFORE model (Urban Forest Effects), a computer program able to evaluate the structure of urban forest, like the species composition, tree density and numerous derived functions, such as storage and carbon sequestration, pollution reduction, volatile organic compounds formation, as well as other important services.

[\textbackslash n] [...] The report describes the structure of urban forest and the ecological benefits derived from this urban forest (shrubs and trees) of the city. Other environmental services such as noise pollution, water cycle and vulnerability of urban forest to the climate change, will be also treated.

[\textbackslash n] [...]

[Conclusion] The vulnerability of urban vegetation to climate change is very difficult to quantify. However, in Barcelona's parks and gardens these changes could be mitigated by appropriate management. As well as increasing the permeable surface (which, as has been seen, is only 36\%) and the tree cover, the health of trees must be improved with specific watering and maintenance systems depending on the requirements of the species to promote tree growth, make them less vulnerable to drought, and improve the benefits they bring to the climate and pollution elimination. This must be accompanied by measures tending to make maintenance activities more sustainable.

[\textbackslash n] This study, focusing on the environmental benefits of urban vegetation, has revealed very interesting results. However, in order to obtain other information, such as energy savings or which species best filter polluted air, it would have to be completed with ecophysiological studies, at least of the most abundant plant varieties in the city, as we already know that some species are more affected than others by warming and drought episodes. So, the choice of species through research and genetic selection could improve the state of the city's trees and ensure greater biodiversity, thereby reducing the risk from pests. Measures are also required to prevent the proliferation of invasive species in natural areas.

[\textbackslash n] Due to Barcelona's great population density, the environmental services of the urban vegetation play a modest role; by contrast their social services, not included in this study, are more important, due to the need (biophilia) varying from person to person, to enjoy the presence of vegetation in streets, balconies, gardens, etc. and the improvements to the landscape this involves.},
  keywords = {*imported-from-citeulike-INRMM,~INRMM-MiD:c-14040392,classification,ecosystem-services,forest-resources,land-cover,land-use,science-society-interface,spain,urban-areas,vegetation}
}

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