基于上海市古银杏健康评价结果的古树周边景观设计策略分析

Analysis on Landscape Design Strategies Around the Ancient Trees Based on the Results of Ancient Ginkgo Health Evaluation in Shanghai

古树是城市园林绿化的亮点,本身也是一个独立的景观。银杏(Ginkgo Biloba)是我国特有的景观树种,也是上海市古树资源中数量最多的古树树种。为了分析古树周边景观对古树健康的影响因素,文章运用上海市古银杏健康评价指标体系,对古银杏健康程度值进行计算,分析古银杏健康指标的得分情况;得出影响古银杏健康的因素,结合评价结果阐述相应古树周边景观设计策略。结果表明,影响古树健康的因素主要有覆盖物影响、树冠缺损率、树皮完整率、周边人类活动影响、根部生长空间等。基于此,从景观设计元素空间布局、铺装类型、植物选择三个方面分别总结设计策略,以期为古树景观设计提供参考。

The ancient trees are urban landscaping highlights and an independent landscape themselves.Ginkgo Biloba is an unique landscape tree species in China,and it is also the most numerous ancient tree species in Shanghai’s ancient tree resources.In order to analyze the factors of the surrounding landscapes around the ancient tree on the health of the ancient trees,the paper uses Shanghai ancient Ginkgo Biloba health evaluation index system to calculate the value of the health degree of the ancient Gnkgo Biloba and to analyze the score of the ancient Ginkgo Biloba health indexes,and then derives the factors affecting the health of the ancient Ginkgo Biloba.Combining with the evaluation results,the paper elaborates the corresponding landscape design strategies around the ancient trees.The results show that the factors affecting the health of the ancient trees mainly include the influence of mulch,the rate of crown defects,the rate of bark integrity,the influence of surrounding human activities,and the space for root growth,and so on.Based on this,the design strategies are summarized from three aspects of landscape design elements:spatial layout,pavement type,and plant selection,respectively,in order to provide a reference for the landscape design of the ancient trees.