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世博会参展国自建馆是各个国家展现本国特色、文化和民俗风情的平台。各国的特色植物具有很强的地域性特征和丰富的文化内涵,是自建馆营造异域风情,体现独特民族特色的重要元素。选择适合世博会使用的参展国特色植物需要考虑多方面因素。在文化性、适应性、观赏性、经济性原则下,制定越夏抗性、文化特色、管理养护频度等10个指标作为选择依据,采用灰色关联法对特色植物量化评分后进行综合评价。以西班牙自建馆特色植物选择为例,在52种参选特色植物中,16种被列为重点推荐用于世博会西班牙馆景观绿化,25种为适宜应用种类,12种植物被列为不推荐使用的种类。研究表明,灰色关联法对于多指标的植物选择和综合评价方面是科学的、有效的,具有一定实用价值。
Expo self-built museum exhibitors in various countries to showcase their own characteristics, culture and folk customs platform. The characteristic plants of all countries have strong regional characteristics and rich cultural connotations, and they are important elements of creating exotic customs and unique ethnic characteristics in self-built museums. Select suitable for the World Expo exhibitors characteristics of plants need to consider many factors. Under the principles of culture, adaptability, ornamental and economy, 10 indicators of resistance, cultural characteristics, frequency of conservation and management were set as the basis of selection. The quantitative evaluation of characteristic plants was carried out by using gray correlation method. Taking the selection of featured plants in Spain's self-built museum as an example, of the 52 participating plants, 16 are listed as being highly recommended for the greening of the Expo site in Spain, 25 are suitable for application and 12 are not recommended The type of use. The research shows that the gray correlation method is scientific, effective and practical for plant selection and comprehensive evaluation of multiple indicators.