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【精选】福州城市绿地斑块景观结构和异质性分析.pdf

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福建林学院学报 2006 ,26(1 ):31 - 35 JournaI of Fujian CoIIege of Forestry 福州城市绿地斑块景观结构和异质性分析 * 陈 灿,洪 伟,吴承祯,洪 滔,范海兰,王萍兰 (福建农林大学林学院,福建 福州350002 ) 摘要:对福州城区绿地生态系统景观结构和异质性进行了分析,结果表明,附属绿地数量最多, 占城区绿地斑块总数的87. 35% ,但面积只占城区绿地总面积的14. 60% ;其它绿地的数量最 少,但面积却占到了城区绿地总面积的31. 82% ;防护绿地只有25 块,但面积却也占到了城 区绿地总面积的23. 81% . 福州城区绿地生态系统斑块大小其它绿地和防护绿地平均值较大, 分别达到 326. 2 和 29. 30 hm2 ;公园绿地和生产绿地斑块平均值次之,分别是 10. 87 和 9. 30 hm2 ,但斑块大小变化范围较大;而附属绿地斑块平均值最小,斑块大小变化范围也相对 较小. 总得来说,各类型的各级斑块在面积上的变化比块数上的变化要大得多. 其它绿地多样 性指数最低,次低的是生产绿地,最高的是附属绿地. 优势度在福州城区的5 个区的不同绿地 中都比较小. 相比之下,附属绿地的分布最为均匀. 绿地分布不均衡,应加强土地规划,同时 造林绿化,优化生态环境,建造具有本城区特色的景观斑块和廊道. 关键词:景观结构;景观异质性;绿地;福州 中图分类号:@149 文献标识码:A 文章编号:1001 - 389X(2006 )01 - 0031 - 05 Structure and heterogeneity of urban Vegetation landscape in Fuzhou CHEN Can ,HONG Wei ,WU Cheng-zhen ,HONG Tao ,FAN Hai-Ian ,WANG Ping-Ian (CoIIege of Forestry ,Fujian AgricuIture and Forestry University ,Fuzhou 350002 ,China ) Abstract :The structure and heterogeneity of urban Iandscape in Fuzhou city were studied in this paper ,the resuIts showed that the most vegetation patches were Attached GreenbeIets,account for 87. 35% of the totaI vegetation patches,but their area was onIy 14. 60% of the totaI vegetation area. The Ieast were Other GreenbeIt ,but their area was 31. 82% of the totaI vegetation area. AI- though Green buffers had onIy 25 patches,their area account for 23. 81% of the totaI vegetation area. In items of the size of the pat- ches ,the average area of Other GreenbeIt and Green buffer were 326. 24 and 29. 30 hm2 respectiveIy ,whi
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