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CRECIMIENTO URBANO Y VULNERABILIDAD AL CAMBIO CLIMÁTICO DE CALDERÓN EN EL DISTRITO METROPOLITANO DE QUITO, ECUADOR
JOHANNA ELIZABETH VILLAVICENCIO-ORDÓÑEZ, DIANA RAQUEL LÓPEZ-GUZMÁN, ÁNGEL PATRICIO VELÁSQUEZ-CAJAS
REVISTA URBANO Nº 49 / MAYO 2024 - OCTUBRE 2024
PÁG. 94 - 107
ISSN 0717 - 3997 / 0718 - 3607
I. INTRODUCTION
In Latin America, urban growth occurs in an accelerated
and disorderly way, reflecting “deep causes of an
economic and social origin, along with a lack of
adequate urban planning” (Herrera & Pecht, 1976, p.
18). Consequently, problems such as regional and
urban network imbalance, marginality, unemployment,
absence of essential services, and increased urbanization
in the peripheries are revealed (Vilela & Moschella,
2017). However, climate change has become one of the
current narratives that influence the political, economic,
territorial, and cultural spheres, and this, accompanied
by accelerated urbanization processes, is a significant
challenge. Firstly, urbanization in developing countries
is related to being less prepared for environmental
challenges. Secondly, large cities are vulnerable to climate
change risks such as losing natural resources or even
natural disasters. Thirdly, cities produce the highest level
of greenhouse gases and energy consumption (Duque
& Montoya, 2021). Similarly, urban expansion causes
variations in air temperature that can affect the residents’
well-being (Ferrelli et al., 2016).
According to the UN (2011), understanding urban area
growth is essential to mitigating climate change. These
areas have obvious risks from weather patterns that
have become the daily realities of the most vulnerable
population. The analysis of climate and environmental
change in the context of Latin America and the Caribbean
is particularly relevant, given that it is a primarily
urban region. Cities are home to more than 80% of the
population and most economic activities, which generates
a high demand for land, public services, drinking water,
and energy. This, in turn, seriously impacts air quality and
greenhouse gas emissions (Duque & Montoya, 2021).
Therefore, urban growth has replaced forests, wetlands,
and agricultural fields, as can be seen in the study by
Mendes et al. (2020), who note that “the homogeneity
of hot and humid areas eliminates the thermal contrasts
needed to generate local breezes and winds” (p. 192),
which explains the high levels of pollution in medium-
sized and large cities.
In this context, the studies reviewed on urban expansion
in Calderón confirm the parish’s situation in terms of
territorial and environmental conflicts. For example,
Altamirano’s (2016) research shows that urban expansion
is related to the environment. He points out that
demographic growth has been generated by diverse
factors such as the location of residential, industrial, and
equipment areas. This presents an environmental impact
due to high levels of pollution as a result of the increase in
population, industries, and automobile fleet, among other
aspects. Another study by Vásquez (2007) mentions that
population growth and the need for territory to urbanize
the land with an agricultural vocation have disappeared.
Therefore, urban development affects protection and
conservation areas. It should be noted that no research
has been carried out regarding the relationship of urban
growth with climate change in the studied territory
beyond the environmental issue, reorganization, and
proposal of urban models for the parish. Therefore,
analyzing this case is relevant to understanding how
unplanned urban expansion and territorial conflicts
exacerbate the parish’s vulnerability to the adverse effects
of climate change, such as temperature increases, extreme
weather events, and the alteration of rainfall patterns.
These effects threaten the natural environment and the
quality of life of its inhabitants.
In this way, it is proposed to identify the vulnerability of
Calderón parish, considering that accelerated growth has
affected it socially, economically, and environmentally. In
this sense, the general objective of this work is to identify
the vulnerability to climate change by analyzing the urban
growth of Calderón to define climate change adaptation
measures. Three specific objectives were raised: analyzing
urban growth historically and spatially, determining the
relationship between urban growth and vulnerability,
and establishing climate change adaptation measures.
The research was based on a mixed approach study,
combining quantitative, qualitative, and spatial methods
over three stages: 1) historical and spatial analysis of
urban growth, 2) evaluation of the relationship between
urban growth and vulnerability to climate change, and
3) proposals for adaptation measures. For this, thirteen
indicators were used to measure exposure, sensitivity,
and adaptive capacity. This paper proposes guidelines on
climate change based on the governance and absence of
adaptation measures in the Territorial Organization and
Development Plans (PDOT, in Spanish) and the recent
Climate Change Adaptation Plan (2023).
II. THEORETICAL FRAMEWORK
The research is carried out in three categories: urban
growth, climate change, and vulnerability. Urban growth is
understood from three processes: expansion, consolidation,
and densication. The term expansion “refers to the change
of land use, i.e., when spaces used for rural activities are used
in city-related activities” (Ramírez & Pértile, 2013, p. 196). On
the other hand, consolidation is related to the set of services,
infrastructure, and densication. It includes the increase in
population and housing per unit area. Small cities have a
concentric urban expansion trend. However, there is gradual
demographic growth with a change in the development