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期刊杂志

    郑州市道路绿化分析、评价及模式构建

    关键词:园林植物;树冠体量;定量化;道路绿化;覆盖率;郑州市

    Key words:landscape plants; tree crown volume; quantification; road greening; coverage rate; Zhengzhou

    摘要:采用定量化的方法,对郑州市常用的56种行道树的树冠体量进行调查和量化排序,并按冠幅分为6类;对郑州市40条不同类型的典型道路绿化状况进行调查、分析及评价,结果表明:调查范围内道路的平均绿地率为10.16%,平均覆盖率69.72%,主要行道树的平均覆盖率64.83%。影响道路绿化效果的主要原因是较宽路段或新建路段种植小冠幅树种、低龄树种或高干嫁接树种,导致现阶段的行道树冠幅太小,无法满足遮阴需求。提出了“适路适树”“多板多带”等应对措施。结合乔木体量量化研究结果,构建了郑州市道路绿化的配置模式。

    Abstract:The tree volume of 56 kinds of common garden trees in Zhengzhou city were studied quantitatively and divided into 6 kinds according to their crown breadth. Investigation, analysis and evaluation of greening situation of 40 typical roads of different types in Zhengzhou city were carried out. The results showed that, within the scope of the survey, the average ratio of green land was 10.16%, the coverage ratio was 69.72%, the coverage ratio of street trees was 64.83%. And the main reasons of impacting road greening effects were that the small canopy tree, young tree and the grafted trees were planted on wider sections and new-building sections. As a result, the tree canopy was so small at this stage that it couldn't meet the demand of shade. Therefore, the corresponding measures were put forward: the crown volume of street trees should be suited to the width of the roads, and too wide roads should be divided into sections according to the crown volume of street trees. Finally, combined with the results of quantitative research of volume of arbor, configuration models of the road greening in Zhengzhou city were built.

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