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    基于AHP的北京地区观赏海棠景观价值评价

    关键词:园林植物;观赏海棠;层次分析法;观赏价值

    Key words:landscape plants; Malus species; Analytic Hierarchy Process; ornamental value

    摘要:在对北京各类型绿地中的观赏海棠资源进行全面调查的基础上,采用层次分析法对北京地区67种观赏海棠的景观价值进行综合评价,建立了定性与定量相结合的综合评价层次结构模型。评价结果表明:Ⅰ级(≥4.0),综合评分很高的种类,共11种;Ⅱ级(3.6~4.0),综合评分较高的种类,共25种;Ⅲ级(3.2~3.6),综合评分一般的种类,共19种;Ⅳ级(≤3.2),综合评分较低的种类,共12种。Ⅰ级和Ⅳ级的海棠种数较少,而Ⅱ级、Ⅲ级海棠种类占绝大多数。参考AHP的综合评价及各层次评价结果,结合海棠的观赏特性、景观营造需求及苗圃的生产销售,推荐了较适合北京地区园林应用的海棠种类。

    Abstract:On the basis of comprehensive investigation of the crabapple resources of city parks and nurseries in Beijing, the AHP was used to evaluate the landscape value of 67 Malus species, and the comprehensive evaluation model of landscape value was built. The evaluation results show that: level I (≥4.0), species score highest in the comprehensive landscape evaluation, a total of 11; level II (3.6~4.0), species score higher in the landscape evaluation, about 25; level III(3.2~3.6), species that are general in the landscape evaluation, about 19; leve IV(≤3.2), species score lower in the landscape evaluation, nearly 12. The species of level Iand IV are less compared with the ones of level II and III, which accounts for most of the Malus species. Consulting the AHP comprehensive evaluation and results of each level, the authors combine the ornamental characteristics of Malus, special landscape demand and production sales of nurseries to recommend the Malus species which are suitable to be used in Beijing area.