基于低维护营造的水生草本植物筛选评价

Selection and Evaluation of Aquatic Herbs Based on Low-maintenance Construction

水生植物是城市水景营造的重要组成部分,复层结构的水景植物配置具有较好低维护特点,需要匹配适应的水生草本植物种类。以珠三角地区为研究区域范围,选取了32种城市水景广泛应用的水生草本植物,运用层次分析法,建立了包括观赏价值、适应性以及生长特性3个准则层和10个评价因子指标的评价模型,对水生草本植物的筛选与运用进行讨论研究。结果表明,32种水生草本植物可分为3个等级,其中Ⅰ等级6种,Ⅱ等级11种,Ⅲ等级15种,优选推荐翠芦莉Ruellia simplex、风车草Cyperus involucratus、柳叶箬Isachne globosa和菖蒲Acorus calamus等作为低维护城市水景植物景观营造种类。

Aquatic plants are an important part of the construction of urban waterscapes.The multi-layered waterscape plant configuration has good low-maintenance characteristics and needs to match the t ypes of aquatic herbs.Taking the Pearl River Delta region as the research area,32 kinds of aquatic herbs widely used in urban waterscapes are selected.Using the Analytic Hierarchy Process,an evaluation model including three criterion layers of ornamental value,adaptability and growth characteristics and 10 evaluation factors is established to discuss and research on the selection and application of aquatic herbs.The results show that 32 aquatic herbs can be divided into three grades,of which 6 species are grade Ⅰ,11 species are grade Ⅱ,and 15 species are grade Ⅲ.Ruellia simplex,Cyperus involucratus Isachne globosa and Acorus calamus are recommended as low-maintenance urban waterscapes plants.