| City road is an important display window in the city,and also the city green space system and the ecological system is an important component,reflects the complex and diverse functions,to grasp the main road of Fuzhou area of plant landscape,and provide scientific guidance for further reference for the greening of Fuzhou city main roads and landscaping,on the basis of the comprehensive survey of the 83 main roads in Fuzhou urban district,the selected 84 most representative samples(two samples in Minjiang Avenue)were detailedly investigated.Through the data of the samples,plant species,life form,configuration,main road section form,greenning rate,ratio of green space,crown density,etc were mastered and photographed.On the basis of it,the data in each group was analyzed.And the plant landscape AHP evaluation model of main roads in the urban district of Fuzhou urban district was constructed.With the application of AHP and SBE,the landscape was evaluated.The main result was as follows.1.In the result,it was showed that there were 76 species of plants in main roads,belonging to 42 families and 60 genera.There were 34 species of arbors,31 species of trees and 13 species of herbages.At all levels in main roads,there were obvious dominant species.In the more important species of the tree layer,there were Ficus microcarpa,Mangifera indica,Cinnamomum camphora,Ficus virens.In the more important species of the shrubby layer,there were Ficus microcarpa,Duranta repens,Fagraea ceilanica,Loropetalum chinense,Rhododendron pulchrum.In the more important species of the herbaceous layer,there were Zoysia japonica,Eremochloa ophiuroides,Cynodon dactylon.It is obviously to show the symbol of "Ficus microcarpa" in Fuzhou and its south asia tropical style.2.The area between the green space,shrub and grass in main road is 47:7:2,the proportion of evergreen and deciduous is 5:1,the evergreen trees are the main part of landscape and the plant level is relatively simple.The application of ornamental plant in leaf and flowers is more frequent,the number are 43 species and 33 species respectively,there are less species of ornamental plant in fruit and shape and plant species with the whole road plant equipped with the characteristics of evergreen in seasons and flowering months.3.According to the analysis of the diversity index of three,shrub and herbages in the main road.It is showed that the shrub layer has a more complicated plant community structure,and more diversed configuration method,moreover,the herb layer was not more than 2 kinds of plants.4.Section form of main road are 4 types,with a big part of type of two sections,53 roads in total,which accounting for 63.10%of the survey sample.There are 6 kinds of green belt plant allocation patterns,and the most common form is single tree configuration,which had appeard 56 times.5.Green belt equipped with the function of reducing noise and cooling.The noise reduction rate of the green belt on the main road is 5%～10%,and the cooling rate is 10%～15%.The average green rate is 14.49%,the average greening rate is about 35.74%,and there is no significant correlation between the greening rate and the canopy density.6.There is a significant correlation on the results of AHP and SBE,the correlation index is 0.53,and the results of the two evaluation showed that it has some improvement when it comes to the quality of plant landscape in the main roads of Fuzhou.7.Summary of better evaluation of different sections of trunk road green plant configuration features:the four plates with five sections of road equipped with the obvious characteristics of plant species diversity,configuration flexibility;the main road four and two in three with a third belt section form equipped with rhythmic and focus on the pedestrian guidance and isolation on the driver and apedestrian;a two section form,tree crown large,create a road landscape are paying more attention to one characteristics itself.8.Through the survey and evaluation,summarized Fuzhou City plant landscape transformation main advantages,and from the Fuzhou climate characteristics,culture conditions,road greenbelt guidance function,road elevation status and landscape maintenance aspects,discusses the Fuzhou urban trunk road plant landscape optimization measures. |
