Towards lower carbon cities: urban morphology contribution in climate change adaptation strategies

ABSTRACT Non-urbanized areas (NUAs) play an important role in reducing the effects of climate change by providing both carbon storage and sequestration. Urban areas are responsible for the emission of 60% of global greenhouse gas, 50% of which are produced by buildings. During the past decades, increasing urban growth and sprawl processes produced several urban layouts characterized by different morphological features and a common lack of sustainable energy and environmental solutions. Investigating the relationship between urban morphology, energy demand and carbon emission/sequestration represents a relevant topic for urban planning practices implemented to face urban climate change effects. This study proposes a method for a transformability assessment aimed at investigating the transformation suitability of different urban morphology types. The case study is the metropolitan area of Catania (Italy), characterized by an impressive urban growth since the 1960s. The proposed method identification of limits and options for increasing sustainability of urban areas considering the contribution of both NUAs and built-up areas. This approach allows to identify appropriate planning tools for new layouts of urban fabrics while increasing the objectivity of the decision process. In the framework of climate change mitigation and adaptation, the outcomes of this research may lead to innovative urban planning practices.

[1]  Elizabeth Brabec,et al.  Agricultural land fragmentation: the spatial effects of three land protection strategies in the eastern United States , 2002 .

[2]  H. Akbari,et al.  Analyzing the land cover of an urban environment using high-resolution orthophotos , 2003 .

[3]  E. Mcpherson,et al.  Carbon dioxide reduction through urban forestry: guidelines for professional and volunteer tree planters , 1999 .

[4]  A. Kaźmierczak,et al.  Climate change and the city: Building capacity for urban adaptation , 2015 .

[5]  G. Lindseth.  The Cities for Climate Protection Campaign (CCPC) and the framing of Local Climate Policy , 2004 .

[6]  K. Lee,et al.  Use of remote sensing and geographical information systems to estimate green space surface-temperature change as a result of urban expansion , 2005, Landscape and Ecological Engineering.

[7]  Robert E. Hoehn,et al.  Carbon storage and sequestration by trees in urban and community areas of the United States. , 2013, Environmental pollution.

[8]  G. Xie,et al.  The cooling effect of urban green spaces as a contribution to energy-saving and emission-reduction: A case study in Beijing, China , 2014 .

[9]  Qihao Weng,et al.  A survey of image classification methods and techniques for improving classification performance , 2007 .

[10]  D. L. Rosa.  Accessibility to greenspaces: GIS based indicators for sustainable planning in a dense urban context , 2014 .

[11]  James E. Bartlett,et al.  Organizational research: Determining appropriate sample size in survey research , 2001 .

[12]  Maurizio Sasso,et al.  Analysis and diagnosis of the energy performance of buildings and districts: Methodology, validation and development of Urban Energy Maps , 2013 .

[13]  ENHANCING CARBON SEQUESTRATION POTENTIAL OF URBAN GREEN SPACES THROUGH TRANSFER OF DEVELOPMENT RIGHTS STRATEGY , 2017 .

[14]  Jim W Hall,et al.  Assessment of climate change mitigation and adaptation in cities , 2011 .

[15]  Riccardo Privitera,et al.  Agricultural and green infrastructures: the role of non-urbanised areas for eco-sustainable planning in a metropolitan region. , 2011, Environmental pollution.

[16]  Tenley M. Conway,et al.  A comparison of neighborhood characteristics related to canopy cover, stem density and species richness in an urban forest , 2013 .

[17]  R. Dawson,et al.  Multi-sector mitigation strategies at the neighbourhood scale , 2018, Journal of Cleaner Production.

[18]  Matteo Ignaccolo,et al.  The density dilemma. A proposal for introducing smart growth principles in a sprawling settlement within Catania Metropolitan Area , 2011 .

[19]  Giuseppe Inturri,et al.  A model for mapping the energy consumption of buildings, transport and outdoor lighting of neighbourhoods , 2016 .

[20]  Lisa T. Smallbone,et al.  Socio-Economics and Vegetation Change in Urban Ecosystems: Patterns in Space and Time , 2009, Ecosystems.

[21]  N. Coops,et al.  A systems approach to carbon cycling and emissions modeling at an urban neighborhood scale , 2013 .

[22]  M. Whitehead,et al.  Cities, Urbanisation and Climate Change , 2013 .

[23]  Danièle Revel,et al.  Cities and climate change : an urgent agenda , 2011 .

[24]  D. Bengston,et al.  Public policies for managing urban growth and protecting open space: policy instruments and lessons learned in the United States , 2004 .

[25]  John Handley,et al.  Characterising the urban environment of UK cities and towns: A template for landscape planning , 2008 .

[26]  Pablo Tittonell,et al.  Livelihood strategies, resilience and transformability in African agroecosystems , 2014 .

[27]  M. L. Cadenasso,et al.  Characterization of Households and its Implications for the Vegetation of Urban Ecosystems , 2006, Ecosystems.

[28]  J. Jabbour,et al.  Climate Change Science Compendium , 2009 .

[29]  Joan Marull,et al.  A Land Suitability Index for Strategic Environmental Assessment in metropolitan areas , 2007 .

[30]  K. R I S T I,et al.  Carbon Sequestration Potential of Extensive Green Roofs , 2009 .

[31]  D. L. Rosa,et al.  Land Cover Analysis for Evapotranspiration Assessment in Catania Metropolitan Region , 2013 .

[32]  Åke Sivertun,et al.  Geographic Information Analysis for Sustainable Development and Economic Planning: New Technologies , 2012 .

[33]  C. Brack,et al.  Pollution mitigation and carbon sequestration by an urban forest. , 2002, Environmental pollution.

[34]  João Castro-Gomes,et al.  Green wall systems: A review of their characteristics , 2015, Renewable and Sustainable Energy Reviews.

[35]  D. L. Rosa,et al.  Characterization of non-urbanized areas for land-use planning of agricultural and green infrastructure in urban contexts , 2013 .

[36]  Marta Olazabal,et al.  Use of fuzzy cognitive maps to study urban resilience and transformation , 2016 .

[37]  E. Gregory McPherson,et al.  The potential of urban tree plantings to be cost effective in carbon credit markets , 2007 .

[38]  Chris Gossop.  Low carbon cities: An introduction to the special issue , 2011 .

[39]  Philipp Rode,et al.  Cities and Energy: Urban Morphology and Residential Heat-Energy Demand , 2014 .

[40]  D. L. Rosa,et al.  Green oriented urban development for urban ecosystem services provision in a medium sized city in southern Italy , 2014 .

[41]  Simone Bastianoni,et al.  Carbon dioxide sequestration model of a vertical greenery system , 2015 .

[42]  D. Ludlow.  Urban Sprawl in Europe - The Ignored Challenge , 2006 .

[43]  C. S. Holling,et al.  Resilience, Adaptability and Transformability in Social–ecological Systems , 2004 .

[44]  C. Ratti,et al.  Energy consumption and urban texture , 2005 .

[45]  Marjorie Musy,et al.  A hydrothermal model to assess the impact of green walls on urban microclimate and building energy consumption , 2014 .

[46]  Chi Yung Jim,et al.  Comprehensive greenspace planning based on landscape ecology principles in compact Nanjing city, China , 2003 .

[47]  Wendy Y. Chen.  The role of urban green infrastructure in offsetting carbon emissions in 35 major Chinese cities: A nationwide estimate , 2015 .