北京居住区乔木数量结构特征与空间三维绿化结构研究  

A Study of Arbor Quantitative Structure and Three-dimensional Greening Structure in Beijing's Residential Areas

作　　者：郄光发[1] 王成[1] 彭镇华[1] 

机构地区：[1]中国林业科学研究院林业研究所,北京100091

出　　处：《中国城市林业》2011年第3期27-30,共4页Journal of Chinese Urban Forestry

基　　金：国家"十一五"科技支撑专项(2006BAD03A17)

摘　　要：通过对北京城区3种类型居住区树木数量结构、径级结构和立木层次结构的分析发现:毛白杨、国槐、泡桐、侧柏、臭椿、白蜡等6个树种是居住区中的主要树种,其累计数量占到了居住区树木总株的48.5%,相对覆盖度累计达到0.651;居住区树木平均胸径23.88 cm,平均株高11.74 m,树木水平胸径等级结构分布相对合理,而在垂直高度空间小乔木植株比例过大;从3类不同类型居住区的比较来看,专属单位附属居住区的绿化效果较好,其树木平均胸径和平均株高水平都要明显高于胡同居住区和普通居住区。By investigating species quantitative structure, distribution of diameter at breast height （DBH）, and stratum structure of standing trees in three types of residential areas in Beijing, the results showed that six species （Populus alba, Sophora japonica, Paulewnia fortunei, Platycladus orientalis, Ailanthus altissima and Fraxinus chinensis） were the main species the these residential areas, totally accounting for 48.5% of the total with the relative coverage accumulatively to 0.651. The average height and average DBH of the arbors in these residential areas were 11.74 m and 23.88 cm respectively, and the DBH structure was relatively reasonable while there was a large proportion of small trees in the vertical green space. Comparison of the three different types of residential areas showed that the average height, average DBH and crown coverage of trees in the residential area for institutions were significantly higher than Hutong residential area and other common residential area.

关 键 词：北京 居住区 树木数量结构 空间三维结构 

分 类 号：TU985.125[建筑科学—城市规划与设计]