青岛市居住区主要灌木树种生态效益综合评价

Study and Assessment on Ecological Benefit of Main Shrubs in Residential Areas of Chengyang District in Qingdao City

运用综合指数法,对青岛市居住区19种主要灌木树种的固碳释氧能力、降温增湿能力、滞尘能力、杀菌和减噪作用进行测定,同时对植物的生态效益进行综合评价和分级。结果表明:综合指数越高的植物生态效益越好。根据综合指数的大小,将供试植物分为三大类,第Ⅰ类包括金银木,综合指数为0.9596,第Ⅱ类包括红瑞木、火棘、连翘等,综合指数分别为0.6184、0.4904、0.4163;第Ⅲ类包括金山绣线菊、紫荆、华北珍珠梅等植物,综合指数分别为0.2884、0.2757、0.2502。

Calculating of carbon fixation and oxygen release,cooling and humidification,dust detaining,sterilization rate and noise attenuation of plant,assessmed and ranked ecological benefit of nineteen shrub species in residential areas in Qingdao city by synthetical index method.The results showed that the more synthetical index was higher,the more ecological benefit was better.Accrording to synthetical index,these species was separated three kinds.The first kind included Lonicera maackii,the synthetical index was 0.9596.The second included Cornus alba,Pyracantha fortuneana,Forsythia suspense etc,the synthetical indices were 0.6184,0.4904,0.4163.The third involved Cercis chinensis,Spiraea×bumalda 'Goalden Mound',Photinia fraseri 'Red Robin' and so on,the synthetical indices were 0.2884,0.2757,0.2502.