Assessment of Urban Greenspace Landscape Based on Land Suitability Analysis

Abstract

Urban green spaces play an important role in urban ecosystems, they provide diverse environmental and social services to improve the quality of life in cities. In this study, based on the high resolution remote sensing images and other auxiliary data, we conducted a suitability analysis for the city of Changzhou under the support of Geographic Information System (GIS) technology. In addition, landscape index were also involved in the quantitative assessment of green landscape with high suitability. Results revealed that the green patches in Changzhou were seriously fragmented, middle and small patches accounted for 96% of the total amount of green patches and 40% of the total green landscape area. In the highly suitable region, the green patches with middle and small size should take up 45% of the total amount and 14% of the total area, its patch structure is obviously superior to whole the city. The Yellow Mountain, Qing Ming and Fang Mao Mountain area, in the northern and eastern part of Changzhou, were less fragmented. It is evidenced by a high aggregation index and a developed green landscape in these areas. For the low suitable areas, attention should be paid to increase the arbor coverage rate, reduce the fragmentation degree and the layout of patch.