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Sustainability 2016, 8(7), 677; doi:10.3390/su8070677

Effect of Land Use and Cover Change on Air Quality in Urban Sprawl

1
Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring, Ministry of Education, Changsha 410083, China
2
School of Geosciences and Info-Physics, Central South University, Changsha 410083, China
3
School of Geography and Environment, University of Oxford, Oxford OX1 2JD, UK
*
Author to whom correspondence should be addressed.
Academic Editor: Audrey L. Mayer
Received: 29 April 2016 / Revised: 7 July 2016 / Accepted: 12 July 2016 / Published: 18 July 2016
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Abstract

Due to the frequent urban air pollution episodes worldwide recently, decision-makers and government agencies are struggling for sustainable strategies to optimize urban land use/cover change (LUCC) and improve the air quality. This study, thus, aims to identify the underlying relationships between PM10 concentration variations and LUCC based on the simulated PM10 surfaces in 2006 and 2013 in the Changsha-Zhuzhou-Xiangtan agglomeration (CZT), using a regression modeling approach. LUCC variables and associated landscape indexes are developed and correlated with PM10 concentration variations at grid level. Results reveal that the overall mean PM10 concentrations in the CZT declined from 106.74 μg/m3 to 94.37 μg/m3 between 2006 and 2013. Generally, variations of PM10 concentrations are positively correlated with the increasing built-up area, and negatively correlated with the increase in forests. In newly-developed built-up areas, PM10 concentrations declined with the increment of the landscape shape index and the Shannon diversity index and increased with the growing Aggregation index and Contagion index. In other areas, however, the reverse happens. These results suggest that LUCC caused by urban sprawl might be an important factor for the PM10 concentration variation in the CZT. The influence of the landscape pattern on PM10 concentration may vary in different stages of urban development. View Full-Text
Keywords: urban sprawl; air quality; LUCC; landscape; urban agglomeration urban sprawl; air quality; LUCC; landscape; urban agglomeration
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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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Zou, B.; Xu, S.; Sternberg, T.; Fang, X. Effect of Land Use and Cover Change on Air Quality in Urban Sprawl. Sustainability 2016, 8, 677.

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