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    南京市主城区乡土木本植物应用调查及开发建议

    关键词:园林植物;南京;乡土木本植物;城市绿地;观赏特性

    Key words:landscape plants; Nanjing; native woody plants; urban green space; ornamental characteristics

    摘要:针对城市绿化中乡土植物应用的薄弱环节,重点开发稀缺物种,对于加速以乡土植物为主的园林绿化建设具有重要意义。采用样方法及标准段法调查了南京市主城区61个非道路绿地和150段道路绿地中的木本植物在乡土特性、应用频度及观赏特性等方面的特点,共有木本植物246种,其中,乡土木本植物仅69种。研究建议:非道路绿地中,乡土植物应用推广序列为乡土观果乔灌木>乡土色叶乔灌木>乡土观花乔木>其他。而在道路绿地中,乡土植物应用推广序列为乡土色叶灌木>乡土观果灌木和乡土观花乔木>其他。在此基础上,提出了可开发推广的乡土木本植物种类建议。

    Abstract:Studying the weakness in the application of native plants in urban greening to find the species to be developed urgently was very important for facilitating the construction of an urban green space dominated by native plants. The species composition and utilizing frequency of woody plants in 61 sampling sites and 150 road sections in Nanjing were surveyed by quadrat and standard section methods respectively. The native attribution, utilizing frequency, and ornamental characteristics of these plants were analyzed. In non-road green space surveyed, there are 167 species in arbor layer, including 15 native flowering species, 9 native fruiting species and 13 native color-leaf species; there are 156 species in shrub layer, including 22 native flowering species, 4 native fruiting species, and 5 native color-leaf species. Meanwhile, in road green space surveyed, there are only 45 species in arbor layer, including only 2 native flowering species, 5 native fruiting species and 5 native color-leaf species; there are 46 woody species in shrub layer, including 7 native flowering species, 2 native fruiting species, and no native color-leaf species was recorded. So, in non-road green space, the development and popularization rank of native woody plant is native fruiting arbor & shrub > native color-leaf arbor & shrub > native flowering arbor > other. Meanwhile, in road green space, the development and popularization rank of native woody plant is native color-leaf shrub > native fruiting shrub and native flowering arbor > other. Based on the results, a list of native woody plant for developing and popularizing is suggested.

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