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Sustainability 2018, 10(3), 714; https://doi.org/10.3390/su10030714

Quantifying Impacts of Land-Use/Cover Change on Urban Vegetation Gross Primary Production: A Case Study of Wuhan, China

1
College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
2
National Engineering Research Center of GIS, China University of Geosciences (Wuhan), Wuhan 430074, China
3
School of Information Engineering, China University of Geosciences (Wuhan), Wuhan 430074, China
*
Author to whom correspondence should be addressed.
Received: 27 December 2017 / Revised: 6 February 2018 / Accepted: 1 March 2018 / Published: 6 March 2018
(This article belongs to the Section Sustainable Urban and Rural Development)
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Abstract

This study quantified the impacts of land-use/cover change (LUCC) on gross primary production (GPP) during 2000–2013 in a typical densely urbanized Chinese city, Wuhan. GPP was estimated at 30-m spatial resolution using annual land cover maps, meteorological data of the baseline year, and the normalized difference vegetation index (NDVI), which was generated with the spatial and temporal adaptive reflectance fusion model (STARFM) based on Landsat and MODIS images. The results showed that approximately 309.95 Gg C was lost over 13 years, which was mainly due to the conversion from cropland to built-up areas. The interannual variation of GPP was affected by the change of vegetation composition, especially the increasing relative fraction of forests. The loss of GPP due to the conversion from forest to cropland fluctuated through the study period, but showed a sharp decrease in 2007 and 2008. The gain of GPP due to the conversion from cropland to forest was low between 2001 and 2009, but increased dramatically between 2009 and 2013. The change rate map showed an increasing trend along the highways, and a decreasing trend around the metropolitan area and lakes. The results indicated that carbon consequences should be considered before land management policies are put forth. View Full-Text
Keywords: land-use/cover change; gross primary production; urban areas; spatial and temporal adaptive reflectance fusion model land-use/cover change; gross primary production; urban areas; spatial and temporal adaptive reflectance fusion model
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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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Liu, S.; Du, W.; Su, H.; Wang, S.; Guan, Q. Quantifying Impacts of Land-Use/Cover Change on Urban Vegetation Gross Primary Production: A Case Study of Wuhan, China. Sustainability 2018, 10, 714.

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