五种原产非洲灌木在广东城市园林中的应用潜力评估

Assessing the Landscape Use Potential of Five Shrub Species Native to Africa for Urban Landscapes in Guangdong

摘要:

为筛选适宜在深圳园林中推广应用的原产非洲的优良灌木，采用层次分析法，构建了涵盖观赏性、适应性、生态安全性的综合评价模型，以5 种原产非洲的灌木为评价对象，对其园林应用潜力进行量化评估。结果显示，春毛老鼠簕Acanthus polystachyus、火梓Tinnea aethiopica、兔耳爵床Ruttya fruticosa、狭叶赤珠木Petchia erythrocarpa的综合评分均高于85 分，被评为Ⅰ级，具有较高的园林应用价值，且未表现出入侵风险，可在广东地区推广应用；长穗决明Sennadidymobotrya综合得分为83.90 分，被评为Ⅱ级，园林应用表现优良，同样适用于广东地区园林应用。通过检验对比，研究建立的综合评价体系具有合理性与可靠性，可为外来园林植物的科学筛选提供可操作的评估工具。

Abstract:

To identify superior shrub species native to Africa suitable for landscape use in Shenzhen, this study developed a comprehensive evaluation system based on the Analytic Hierarchy Process (AHP), incorporating ornamental value, adaptability, and ecological safety. Five shrub species native to Africa were selected for quantitative assessment of their landscape application potential. The results showed that Acanthus polystachyus, Tinnea aethiopica, Ruttya fruticosa, and Petchia erythrocarpa all scored above 85 points and were rated as Grade I, indicating high landscape application value with no invasive behavior observed in the assessment, broader use in Guangdong requires further monitoring. Senna didymobotrya scored 83.90 points and was rated as Grade II, also showing potential for landscape use in the same region. Through validation and comparison, the comprehensive evaluation system established in this study showed preliminary consistency with the comparison cases, and can provide an operational assessment tool for the scientific screening of introduced landscape plants.