北京城市公共绿地景观格局研究

Study on Landscape Pattern of Beijing City Public Green Space

以2000年和2008年两期遥感影像为主要数据源,在RS与GIS技术支持下提取北京规划市区公共绿地信息。应用景观生态学的原理与方法对北京规划市区公共绿地景观格局变化进行了分析。结果表明:①北京公共绿地数量与面积都不同程度地增加,公共绿地面积由2000年5542.68hm2增加到2008年的8321.98hm2。公共绿地北部较多,南部少。②公共绿地中超大型斑块所占面积比例高达80%,③公共绿地景观破碎度较高,特别是小型斑块;公共绿地分维数偏低,斑块边界较规则,形状较简单。

Take two years original remote sensing image data of Beijing（2000 and 2008）,under the support of RS and GIS,extract information of urban public green space planning,theories and methods of landscape ecology are used,and analyzed on the changes of urban public green space pattern.The results show that：（1）the number of public green area in Beijing is varying increased in both the number and the size.From 5 542.68 hm^2（2000）to 8 321.98 hm^2（2008）,the north public green space is more than the south.（2）large plaque in public green space ratio rise up to 80% of the total area.（3）public green space has more landscape fragment,especially in small patches;public green has lower fractal dimension,more regular patch boundary and simple shape.