| 北京城区住宅区森林群落结构与绿化空间辐射占有量潜力 |
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| 引用本文： | 郄光发,牟少华,王成.北京城区住宅区森林群落结构与绿化空间辐射占有量潜力[J].东北林业大学学报,2010,38(3). |
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| 作者姓名： | 郄光发 牟少华 王成 |
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| 作者单位： | 中国林业科学研究院林业研究所,北京,100091;中国林业科学研究院林业研究所,北京,100091;中国林业科学研究院林业研究所,北京,100091 |
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| 基金项目： | 国家“十一五”科技支撑专项(2006BAD03A17-2);;国家十一五科技支撑专项(2006BAD03A06-3) |
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| 摘 要： | 通过对北京城区25个住宅区的每木调查,研究了住宅区树木数量结构、径级分布和立木层次结构,概算了住宅区RO,G,S现状值与潜在值,分析了主要树种在绿量空间上的拓展潜力,提出了住宅区绿化建议。结果表明:国槐(Sophora japonica)、毛白杨(Populus alba)、侧柏(Platycladus orientalis)、臭椿(Ailanthus altissima)是住宅区中相对密度较大(0.08)、使用频度较高(0.50)的树种;住宅区乔木树种总体上处于高、粗生长阶段,植株平均高度9.9m,平均胸径22.1cm,大乔木(DB,H40cm)分布密度相对较小(1.61株.hm-2),大多数住宅区还没有形成一个成熟的群落结构。RO,G,S概算结果表明:25个住宅区的RO,G,S现状值为3827043m3,绿化空间平均辐射高度1.51m;RO,G,S潜在值为11703933m3,潜在增幅空间为现状值的2.06倍,95%以上的树种在理论上仍有2倍以上的绿量拓展潜力。立地环境差、重度修剪和建筑物阻挡是制约住宅区空间绿量扩增的主要因素。建议通过建设绿荫停车场、绿荫广场、林荫道路等措施,实现树冠下地面空间利用和冠层绿量空间拓展的有机结合,有效增加居住区绿量空间。
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| 关 键 词： | 北京 住宅区 绿化结构 绿化空间辐射占有量(R_(O G S)) |
Forest Community Structure and Radiate Occupation of Green Space in Residential Areas in Beijing |
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| Qie Cuangfa,Mu Shaohua,Wang Cheng.Forest Community Structure and Radiate Occupation of Green Space in Residential Areas in Beijing[J].Journal of Northeast Forestry University,2010,38(3). |
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| Authors: | Qie Cuangfa Mu Shaohua Wang Cheng |
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| Institution: | Research Institute of Forestry;Chinese Academy of Forestry;Beijing 100091;P. R. China |
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| Abstract: | By investigating all the trees in 25 residential areas in Beijing,the tree quantity structure,diameter class distribution,and stratum structure were analyzed. The status and potential values of radiate occupation of green space (ROGS) were calculated,and the expanding potential of the main tree species in the green spaces were analyzed. Some suggestions on afforestation in the residential areas were proposed. Results showed that in the residential areas some species,such as Sophora japonica,Populus alba,Pla... |
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| Keywords: | Beijing Residential areas Forest community structures Radiate occupation of green space |
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