南京林业大学学报(自然科学版) ›› 2008, Vol. 32 ›› Issue (03): 79-82.doi: 10.3969/j.jssn.1000-2006.2008.03.019

• 研究论文 • 上一篇    下一篇

深圳特区城市绿地景观格局现状分析

乌日汗1,宋丽萍2,温小荣,佘光辉1*   

  1. 1. 南京林业大学森林资源与环境学院, 江苏 南京 210037; 2. 深圳市城市绿化管理处, 广东 深圳 518026
  • 出版日期:2008-06-18 发布日期:2008-06-18

Analysis of the current states on landscape pattern of urban green space in Shenzhen city

Wu rihan1, SONG Li-ping2, WEN Xiao-rong, SHE Guang-hui1*   

  1. 1. College of torest Resources and Environment Nanjing Forestry University, Nanjing 210037, China; 2. Urban Greening Administration of Shenzhen, Shenzhen 518026, China
  • Online:2008-06-18 Published:2008-06-18

摘要: <正>对重庆酸雨区不同优势等级马尾松单木的生物量及根系分布特征进行了系统调查。结果表明:马尾松个体生物量中地上部分占90%以上,根系不足10%,各器官生物量所占比例顺序从大到小依次为:干、枝、根、皮、叶。不同优势等级马尾松林木的根系分布深度与幅度有很大区别,优势木垂直根系深度可达130cm,水平根系集中在半径为3m的范围内;而非优势木垂直根系一般不超过80cm,水平根系集中在1.5m为半径的范围内。不同径级根系在根系生物量中所占比例顺序从大到小依次为:粗根、大根、中根、小根、细根,其中粗根和大根占总根量的90%以上,中、小、细根不足10%。通过根钻法调查酸化土壤中生长的马尾松林木细根的分布特征,发现在40cm深度范围内有大量马尾松细根存在,并在表层土壤较为集中;细根量随距样木距离的加大而不断减少,一般在距样木2.0m的位置减至最低。

Abstract: By using the geographic information system (GIS) and remote sensing (RS) and the fundamentals of landscape ecology, at the same time the high-resolution data of QuickBird satellite image as the main information source. landscape patterns of the urban green space in Shenzhen city were analyzed in this paper. The results shnwed that the whole green space coverage reached 51.36% in Shenzhen city, but the structure of green space landscape was unreasonable with the higher fragmentation and lower fractal dimension. Some construction proposals of Shenzhen city were proposed in light of these current states.

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