昆明市区立交桥周边绿化模式的景观效益评价

在对昆明市区18座立交桥绿化现状进行实地调查的基础上，归纳出4种典型的立交桥植物景观配置模式，即以乔、灌、草3层结构为主的复层植物配置模式（第1类），以灌、草2层结构为主的园林灌草配置模式（第Ⅱ类），疏林草地型（第Ⅲ类）及单纯地被型（第Ⅳ类）。从中分别选取具有代表性的1～2座立交桥，运用园林植物景观评价AHP模型，对各典型立交桥绿化植物景观配置模式的景观效果进行评价，得出第1类模式为“好”；第Ⅱ类模式的评价为“中等”；第Ⅲ类模式为“中等偏好”；第Ⅳ类模式为“差”。

Evaluation on Landscape Effect of Plant Disposition Patterns around Overpasses in Urban Area of Kunming City

Based on the field investigation into the present greening situation around the overpasses in Kunming urban area, the greening patterns around overpasses were classified into 4 types according to plant disposition. TypeⅠwas the multi-layered plant disposition pattern composed of arbor, shrub and herbaceous plant species. TypeⅡ, which was mainly composed of shrub and herbaceous species with 2 layered structure. TypeⅢ, the turf grass pattern with sparsely disposed trees. TypeⅣ, which was the simple groundcover greening pattern.1 or 2 typical overpasses from each of the above 4 types of overpasses with different plant disposition patterns were sampled separately for evaluating the landscape effects of the typical greenspace around each type of overpass by means of AHP model. The results showed that the landscape effects of typeⅠplant disposition pattern were evaluated as "good". The landscape effects of typeⅡ plant disposition pattern were evaluated as "intermediate". The landscape effects of typeⅢ plant disposition pattern were evaluated as "intermediate to good". The landscape effect of type Ⅳ plant disposition pattern was evaluated as "poor".