Urban socio-ecological dynamics: applying the urban-rural gradient approach in a high Andean city

Santiago Bonilla-Bedoya, Anabel Estrella, Angélica Vaca Yánez and Miguel Ángel Herrera

Landscape Research, 2020, vol. 45, issue 3, 327-345

Abstract: The urban-rural dichotomy and the simple cause-effect relationship do not allow establishing specific criteria for territorial management from a socio-ecological perspective. The gradient approach could be a powerful tool to understand urban socio-ecological dynamics. This research applied a methodological protocol to obtain urban-rural gradients while considering the specific characteristics of a mid-size Andean city. To achieve this goal, a mixed classification process was applied to a Landsat 8 image. Subsequently, a factor analysis (FA) grouped 25 urbanisation variables. Finally, we applied agglomerative hierarchical clustering.FA established four factors that explained (72%) of the urbanisation metrics’ variation. From this information, we obtained factor maps and a gradient map. The resulting map differentiated six gradients that contrast with the city’s territorial planning based on the urban-rural dichotomy. This study is a starting point to apply the gradient approach in land-use management and urban ecology planning for Andean cities.

Date: 2020
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DOI: 10.1080/01426397.2019.1641589

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