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Predicting Land Use Changes in Philadelphia Following Green Infrastructure Policies

Villanova University, Department of Geography and the Environment, Villanova, PA 19085, USA
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Received: 20 December 2018 / Revised: 28 January 2019 / Accepted: 30 January 2019 / Published: 1 February 2019
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Abstract

Urbanization is a rapid global trend, leading to consequences such as urban heat islands and local flooding. Imminent climate change is predicted to intensify these consequences, forcing cities to rethink common infrastructure practices. One popular method of adaptation is green infrastructure implementation, which has been found to reduce local temperatures and alleviate excess runoff when installed effectively. As cities continue to change and adapt, land use/landcover modeling becomes an important tool for city officials in planning future land usage. This study uses a combination of cellular automata, machine learning, and Markov chain analysis to predict high resolution land use/landcover changes in Philadelphia, PA, USA for the year 2036. The 2036 landcover model assumes full implementation of Philadelphia’s green infrastructure program and past temporal trends of urbanization. The methodology used to create the 2036 model was validated by creating an intermediate prediction of a 2015 landcover that was then compared to an existing 2015 landcover. The accuracy of the validation was determined using Kappa statistics and disagreement scores. The 2036 model successfully met Philadelphia’s green infrastructure goals. A variety of landscape metrics demonstrated an overall decrease in fragmentation throughout the landscape due to increases in urban landcover. View Full-Text
Keywords: landcover change; green infrastructure; spatial modeling; TerrSet; policy; GEOMOD; Land Change Modeler; nature-based solutions landcover change; green infrastructure; spatial modeling; TerrSet; policy; GEOMOD; Land Change Modeler; nature-based solutions
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Shade, C.; Kremer, P. Predicting Land Use Changes in Philadelphia Following Green Infrastructure Policies. Land 2019, 8, 28.

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