基于GIS的徐州市区景观格局变化分析

以徐州市区2000年和2006年土地利用基础数据为数据源,建立景观类型与土地利用类型的对应关系。将徐州市区景观划分成农业景观、园林绿地景观、居住景观、工业景观、商服公共设施景观、水体景观、交通景观和其他景观8种类型,获得2000,2006年徐州市区景观分类图。计算出景观格局指数,利用GIS的空间分析功能,对徐州市区景观格局及其变化特征进行分析。结果表明:在城市化驱动下,徐州市区农业景观主要向居住景观、工业景观转移,商服公共设施景观、居住景观和工业景观的相互转移频繁;农业景观在空间上逐渐分散,其余的景观类型呈现聚集的趋势;徐州市区呈现出景观异质性程度、斑块破碎化程度和斑块复杂化程度均加强的景观格局变化趋势。

Analysis of Change of Urban Landscape Pattern in Xuzhou City Based on GIS

Based on the basic data of land use in Xuzhou City in 2000 and 2006,the correspondence between landscape types and land use types is established.The landscape classification maps are obtained in Xuzhou City in 2000 and 2006 by classifying the eight landscape types into agricultural landscape,garden green landscape,living landscape,industrial landscape,public facilities service provider landscape,water landscape,transportation landscape and other landscape.By use of the spatial analysis function of GIS,the urban landscape pattern and its change feature are analyzed with the help of the landscape indices calculated.Driven by the urbanization,the agricultural landscape was mainly shifted to the living landscape and industrial landscape,and the metastasis among living landscape,industrial landscape,public facilities service provider landscape was frequent in Xuzhou City.The agricultural landscape gradually dispersed in space while the other seven types of landscapes have a trend of aggregation.The landscape pattern in Xuzhou City shows an enhanced trend of all the landscape heterogeneity degree,patch fragmentation degree and patch complexity degree.