扬州城市绿地景观格局分析  

Analysis of Landscape Pattern of Urban Vegetation in Yangzhou City

作　　者：蔡春菊[1] 彭镇华[1,2] 王成[2] 

机构地区：[1]国际竹藤网络中心国家林业局竹藤科学与技术重点实验室,北京100102 [2]中国林业科学研究院林业研究所城市林业室,北京100091

出　　处：《城市环境与城市生态》2009年第5期7-10,共4页Urban Environment & Urban Ecology

基　　金：国家"十一五"科技支撑项目(2006BAD03A0603)

摘　　要：对2002年扬州市城区绿地斑块分布及其景观结构特征进行了研究,结果表明:小斑块(≤1 hm2)在研究区分布广,数量最多,占绿地斑块总数的59.86%;其次是面积在1~5 hm2的斑块,占总量的33.4%,大于10 hm2的斑块仅占4.2%。面积在1~5 hm2的斑块和大于10 hm2的绿地斑块,分别占绿地总面积的37.6%和39.6%。绿地率在20%~30%的绿地斑块最丰富,占总数的41.7%,占绿地总面积的24.8%;绿地率大于60%的斑块占总面积的32.8%;绿地率≤20%的绿地以小斑块为主,占总面积的8.51%。对绿地景观指数分析表明:城市绿地多样性指数高,总体分布均衡。从老城区到新城区,绿地景观特征表现为总面积增加,平均绿地斑块面积增大,景观破碎度降低,城市绿化的理念不断提升。加强广陵区内绿地斑块的改造,提高斑块间的连接度,增加维扬区和邗江区绿化廊道和绿地斑块的营造,应成为今后城市绿化的重点。The distribution characteristics and landscape structure of urban vegetation in Yangzhou City were studied in 2002.The results showed that the urban vegetation in built-up urban areas mostly consisted of small patches(≤1 hm2)covering 59.86% of the total number of green-land ones,patches with size of 1～5 hm2 33.4% and large patches(>10 hm2)only 4.2%.The urban vegetation was mainly composed by vegetated patches with size of 1～5 hm2and large patches(>10 hm2),which covered separately 37.6% and 39.6% of the tota...

关 键 词：扬州 城市绿地 斑块 景观结构 破碎化 

分 类 号：S731.2[农业科学—林学]