| 扬州城市绿地景观格局分析 |
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| 引用本文： | 蔡春菊,彭镇华,王成.扬州城市绿地景观格局分析[J].城市环境与城市生态,2009(5). |
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| 作者姓名： | 蔡春菊 彭镇华 王成 |
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| 作者单位： | 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 中国林业科学研究院林业研究所城市林业室 |
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| 基金项目： | 国家“十一五”科技支撑项目(2006BAD03A0603) |
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| 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。
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| 关 键 词： | 扬州 城市绿地 斑块 景观结构 破碎化 |
Analysis of Landscape Pattern of Urban Vegetation in Yangzhou City |
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| CAI Chun-ju,PENG Zhen-hua,WANG Cheng.Analysis of Landscape Pattern of Urban Vegetation in Yangzhou City[J].Urban Environment & Urban Ecology,2009(5). |
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| Authors: | CAI Chun-ju PENG Zhen-hua WANG Cheng |
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| Institution: | CAI Chun-ju1,PENG Zhen-hua1,2,WANG Cheng2(1.International Center For Bamboo , Rattan,State Forestry Administration Key Laboratoryof Science , Technology of Bamboo , Rattan,Beijing 100102,China,2.The Research Instituteof Forestry,China Academy of Forestry,Beijing 100091,China) |
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| Abstract: | 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... |
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| Keywords: | Yangzhou City urban vegetation patch landscape structure fragmentation |
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