Urban Sprawl as a Factor of Vulnerability to Climate Change: Monitoring Land Cover Change in Dar es Salaam

Congedo, Luca; Munafò, Michele

doi:10.1007/978-3-319-00672-7_5

Cited by 15 publications

(10 citation statements)

References 16 publications

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“…Realizing the high quality of people's living standards and the completion of infrastructure in the region is an important function for USS. Therefore, this paper selected popularization rate of compulsory education, urban social security coverage, road area per capita, per capita household electricity consumption, urban rail transit per capita mileage, centralized treatment rate of sewage and refuse as the evaluation index of social sprawl [12][13][14]20,46,47].…”

Section: Indicators For Urban Sprawl Sustainability and Climate Changmentioning

confidence: 99%

“…Scholars initially explored the mechanism of the interaction of urban sprawl-climate change system, including the feasible path of their coordinated development. Population growth, economic development, energy consumption, and spatial expansion during urban sprawl have caused coercion on climate change [14][15][16]. At the same time, climate change constrains urban sprawl through population expansion, urban infrastructure, energy activities, and policy intervention [4,[17][18][19].…”

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confidence: 99%

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Urban Sprawl Sustainability of Mountainous Cities in the Context of Climate Change Adaptability Using a Coupled Coordination Model: A Case Study of Chongqing, China

Wang

Pan

2018

Sustainability

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In recent years, a noticeable contradiction has emerged between the disorderly sprawl and fragile climate environment of many cities, especially in mountainous cities. Therefore, this paper respectively constructed evaluation indicators for urban sprawl sustainability (USS) and climate change adaptability (CCA). Next, a coupling coordination degree model was used to measure the coordinated development of USS and CCA. Finally, this paper analyzed the coordinated development type of USS and CCA in the Chongqing metropolitan area from 2007 to 2017. The results of this paper show that USS and CCA have gradually shifted to coordinated development in the Chongqing metropolitan area during the study period. However, there were obvious regional differences in the type of coordinated development in the Chongqing metropolitan area. The coordinated development degree of USS and CCA in nine districts ranged from 0.635 to 0.721 in 2017. It can be divided into three types: slightly coordinated development with lagging CCA; slightly coordinated development with lagging USS; and moderately coordinated development with lagging CCA. Those districts should give priority to the use of Nature-Based Solutions (NBS), and multi-center and multi-group approaches to enhance the coordinated development between USS and CCA, which is also helpful for mountainous cities in China and other countries. decline of urban climate change adaptability. Therefore, ways to urban sprawl sustainability while adapting to climate change have become a key issue in urban sustainable development.Mountainous cities are cities that are distributed mainly in mountainous areas, hills and rugged plateaus, which have different urban morphologies and ecological environments than plains and plateau cities [10]. Constrained by their own unique geological, hydrological, land, ecological environments, and natural resources, mountain cities are characterized by high sensitivity, weak compressive capacity, and poor self-adaptability [10,11]. In specific times and spaces, compared with other types of cities, mountainous cities are more vulnerable to climate change. And as western mountainous cities are in a period of rapid urban sprawl-affecting urban populations, spaces, economies, and other aspects-the impacts of climate change are even more serious. Therefore, the coupling relationship of climate change adaptability and urban sprawl sustainability in mountainous cities has become an important aspect of current urban sustainable development research.Coupling is a concept derived from the physical relationship between two (or more) subjects [12]. For example, when two pendulums are connected to a spring, their vibrations fluctuate and interact with each other. This interaction is called pendulum coupling. From an ecosystem perspective, coupling refers to the interaction, mutual evolution, and subsequent development of two or more system elements (or subsystems) [12]. Similarly, the phenomenon of interaction and mutual evolution between urban sprawl and climate change syst...

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Section: Indicators For Urban Sprawl Sustainability and Climate Changmentioning

confidence: 99%

mentioning

confidence: 99%

Urban Sprawl Sustainability of Mountainous Cities in the Context of Climate Change Adaptability Using a Coupled Coordination Model: A Case Study of Chongqing, China

Wang

Pan

2018

Sustainability

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“…Using the Dar es Salaam region as a study case, a methodology was developed to be economical, simple, and quick to execute [7 ]. Landsat images were preferred to SPOT and CHRIS Proba ones because of their vast data archive, good spectral and spatial (30 m) resolution, and affordability (provided freely by the United States Geological Survey).…”

Section: Assessing Land Cover Change In Dar Es Salaammentioning

confidence: 99%

“…1 The city is the most populous in Tanzania (4.4 million in 2012) and the main engine of the national economy (16.9% of the national GDP in 2001-2012). In the last decade, the population of Dar es Salaam region (which comprises the 3 municipalities of Kinondoni, Ilala and Temeke) has grown far beyond any projections (+76% against a projected +32% in 2002-2012) and the built-up areas have expanded enormously [7 ]. The key idea is that a vicious circle exists linking environmental degradation in the city and inner periurban areas to the furious rate of sprawl observed.…”

Section: Introductionmentioning

confidence: 99%

The demographic dimension of climate change vulnerability: exploring the relation between population growth and urban sprawl in Dar es Salaam

Congedo

Macchi

2015

Current Opinion in Environmental Sustainability

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According to vulnerability literature, the expansion of built-up areas is among the non-climate factors that will combine with climate change in threatening natural ecosystems and reducing water availability. This has even worse effects on rural-urban livelihood vulnerability in sub-Saharan African cities when the vicious circle linking environmental degradation to urban sprawl through population growth and ineffective land use planning is considered. This study delves into the relationship between urban sprawl and demographic growth in Dar es Salaam, Tanzania. On the basis of land cover classification, urban sprawl over a decade is assessed and its trend compared with population census data. A methodology for population estimation is proposed that combines land cover and household density as derived through primary surveys.

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“…Landsat images experienced difficulties in differentiating spectral similarity between bare soil and artificial white surfaces which led to poor classification especially in mixed urban areas [25]. Nevertheless both studies quantify the urban growth up to 2011, which create a need to understand urban land dynamic in Figure 1 shows the study area (Dar es Salaam) which geographically, located at 6˚51'S, 39˚18'E along the south western coast of the Indian ocean, covering total …”

Section: Introductionmentioning

confidence: 99%

Quantification of Annual Urban Growth of Dar es Salaam Tanzania from Landsat Time Series Data

Gombe¹,

Asanuma²,

Park³

2017

ARS

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The information on urban land cover distribution and its dynamics is useful for understanding urbanization and its impacts on the hydrological cycle, water management, surface energy balances, urban heat island, and biodiversity. This study utilizes machine learning, texture variables and spectral bands to quantify the urban growth annually. We used multi-temporal Landsat satellite image sets from 2007 to 2016 and Random Forest classification to map urban land-use in Dar es Salaam. We also applied Annual classification approach to detect the spatiotemporal patterns of urban areas. This approach improved classification accuracy and aided in understanding the urban land-use system dynamics operating in our study area. The results pointed out that, the total built-up areas have grown from 318 km 2 , 388.6 km 2 and 634.7 km 2 in 2007, 2012 and 2016 respectively. The built up areas growth rate is almost 8%, which makes Dar es Salaam be among the fastest growing cities in Africa. The results indicate that, combining spectral bands, texture variables (NDVI BCI, MNDWI) and annual classification map approach was sufficient to map the urban areas. The approach applied in this research provides a useful guide to the urban growth studies and may also serve as a tool for land management planners.

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Urban Sprawl as a Factor of Vulnerability to Climate Change: Monitoring Land Cover Change in Dar es Salaam

Cited by 15 publications

References 16 publications

Urban Sprawl Sustainability of Mountainous Cities in the Context of Climate Change Adaptability Using a Coupled Coordination Model: A Case Study of Chongqing, China

Urban Sprawl Sustainability of Mountainous Cities in the Context of Climate Change Adaptability Using a Coupled Coordination Model: A Case Study of Chongqing, China

The demographic dimension of climate change vulnerability: exploring the relation between population growth and urban sprawl in Dar es Salaam

Quantification of Annual Urban Growth of Dar es Salaam Tanzania from Landsat Time Series Data

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