Multiscale spatiotemporal dynamics analysis of urban green space: Implications for green space planning in the rapid urbanizing Hefei City, China

Under the pressure of rapid urbanization, spatiotemporal dynamics urban green spaces (UGS) have enormous impacts on local ecological system and environment at different scales. In this study, UGS in Hefei City, which has experienced urbanization from 1995 to 2015, were extracted based time-series Landsat-5 TM Landsat-8 OLI images, types parks mapped GF-2 images combined with multi-source metadata. Dynamic patterns space examined by drawing spatial variations city, inner park Results revealed that: (1) At city level, decreased especially farmland sharply lost areas around existing along transportation corridors. (2) inner-city concentric analyses showed that changes rings had unique trends, dynamic most significant Rings 2 3. Comparative analysis old new districts common characteristics transfer-out transfer-in built-up land, newer region, more intense changes. (3) number area increasing center periphery, type gradually changed single rich. Significant heterogeneity was identified landscape fishnet cell analysis. It is fundamental assign construction land for socio-economic development, while planning scales; moreover, integrating space-related policies could protect maintain its stability. Only way can combine economic, social, benefits under background urbanization.