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Investigating Land-Use Dynamics at the Periphery of a Fast-Growing City with Cellular Automata at Two Spatial Scales

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Modeling of Land-Use and Ecological Dynamics

Part of the book series: Cities and Nature ((CITIES))

Abstract

The city of Calgary in southern Alberta, Canada has a current population of 1,120,000 inhabitants; it has experienced steady population and unprecedented land-cover growth over the past six decades due to the strong Alberta economy centered on petroleum industry, tourism, and agriculture. The residential land developments currently expanding at the periphery add up to a sprawling city that is expected to reach 1.5 million inhabitants in 2020 and 2.3 million over the next 50–70 years. Such a rapid growth imposes dramatic land-use changes within and around the city that affect the adjacent environmentally sensitive areas, particularly in the western fringe of Calgary, located in the Elbow River watershed. This paper describes the application of two cellular automata (CA) designed at two spatial scales to investigate the land-use dynamics occurring respectively in the whole watershed and in the eastern portion of the watershed, immediately adjacent to the City of Calgary. The first CA is a cell-based model applied at a spatial resolution of 60 m while the second one is a patch-based model specifically designed to account for the greater level of details that can be observed at the resolution of 5 m. These two models were used to simulate different land development scenarios over a period of 20–30 years. The CA model implemented at the scale of the watershed provides useful information about alternative spatial distributions of urban areas that can occur according to spatial constraints imposed on land development, which can help decision makers find the most adequate distribution of population in regards to the resources that are available to sustain that population in the watershed. The CA model designed at fine spatial resolution allows the identification of detailed land-use classes and changes in their internal structure. It reveals how land consumption can be considerably diminished by encouraging the protection of sensitive areas and increasing the density of existing and new urban residential areas.

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Acknowledgements

This research has been funded by three research grants awarded to D. Marceau by GEOIDE, Tecterra, and NSERC Discovery and by an iCORE scholarship awarded to F. Wang from Alberta Innovates. We also thank Alberta Environment Sustainable Resource Development for their financial support and expertise.

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Correspondence to Danielle J. Marceau .

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© 2013 Springer-Verlag Berlin Heidelberg

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Marceau, D.J., Wang, F., Wijesekara, N. (2013). Investigating Land-Use Dynamics at the Periphery of a Fast-Growing City with Cellular Automata at Two Spatial Scales. In: Malkinson, D., Czamanski, D., Benenson, I. (eds) Modeling of Land-Use and Ecological Dynamics. Cities and Nature. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-40199-2_4

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