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    张德顺, 李科科, 李玲璐, 章丽耀, 刘鸣. 上海滨海地区25种园林树种的抗风性研究[J]. 北京林业大学学报, 2020, 42(7): 122-130. DOI: 10.12171/j.1000-1522.20190253
    引用本文: 张德顺, 李科科, 李玲璐, 章丽耀, 刘鸣. 上海滨海地区25种园林树种的抗风性研究[J]. 北京林业大学学报, 2020, 42(7): 122-130. DOI: 10.12171/j.1000-1522.20190253
    Zhang Deshun, Li Keke, Li Linglu, Zhang Liyao, Liu Ming. Wind resistance of 25 landscape tree species in coastal area of Shanghai[J]. Journal of Beijing Forestry University, 2020, 42(7): 122-130. DOI: 10.12171/j.1000-1522.20190253
    Citation: Zhang Deshun, Li Keke, Li Linglu, Zhang Liyao, Liu Ming. Wind resistance of 25 landscape tree species in coastal area of Shanghai[J]. Journal of Beijing Forestry University, 2020, 42(7): 122-130. DOI: 10.12171/j.1000-1522.20190253

    上海滨海地区25种园林树种的抗风性研究

    Wind resistance of 25 landscape tree species in coastal area of Shanghai

    • 摘要:
        目的  台风是我国东部沿海地区的主要气象灾害之一,近年来气候变化引发的风害发生的频度和成灾强度有不断上升的趋势,加强园林树种的抗风性研究直接关乎城市绿地体系的生态稳定性。
        方法  本文通过对上海常见的25种园林树种的静态拉力实验、树木形态稳定性评价、树木木材测试以及土壤紧实度测量,综合评价了各树种的抗风性特征。
        结果  实验结果显示,各树种的抗拉力矩与抗拉角度呈对数函数关系;稳定性指数随着树木高度、冠高比、树冠不对称性指标的上升而减小;树木树芯的抗压强度与抗压弯度呈线性关系。
        结论  将25种受试树种大致分为两大类:一类是以广玉兰、梧桐、金丝楸、枫香为中心的静态拉力较大、弯曲角度较小的刚性树种,另一类是以银杏为中心的静态拉力较小、弯曲角度较大的韧性树种。

       

      Abstract:
        Objective  Typhoon is one of the main meteorological disasters in the east coast of China. The frequency and intensity of wind damage caused by climate change have been increasing in recent years. The study on wind resistance of landscape tree species is directly related to the ecological stability of urban green space system.
        Method  The comprehensive evaluation was taken for the wind resistance of 25 tree species by the static tension test, morphological stability evaluation, timber property determination and soil compactness measurement.
        Result  There was a logarithmic function relationship between the tensile torque and the tensile angle of each species; the stability index decreased with the increase of tree height, crown width/crown height, canopy size and asymmetry; there was a linear relationship between the compressive strength and the bending strength of tree cores.
        Conclusion  Finally, 25 species were categorized into two groups: the first was a rigid tree with a large static tension and a small bending angle like Magnolia grandiflora, Firmiana simplex, Catalpa bungei ‘Jinsi’ and Liquidambar formosana. Another group was toughness trees with small static tension and large bending angle like Ginkgo biloba.

       

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