Investigation And Analysis On The Application Of Ornamental Plant In Cheng-Qin Expressway

The construction of the expressway will have a great influence on the environment of the surroundings which requires a haghly standarded development scheme when the expressway is being built.Now it appears that there is a more stable ecological environment and a less polluted surrounding here.The transportation of the expressway means a lot to both the city of Chengde and Qinhuangdao,which promotes the development of tourism,culture,and economy.Also it shares a connection of Funing dictrict,Qinglong county and Kuancheng district.But the construction of the expressway leads to the destruction of the local ecological surroundings to some degree.To know more about the development and the management in and abroad,the author analyzes a great many of relative data and books in order to study the application of the ornamental plant in Cheng--Qin Expressway.In the course of investigation,we find that there is a relatively bad natural condition of the district.It is recommended that trees and plants be planted in the right place,the native plants are the main ones,and the ornamental plants are selected to adapt to the local natural ecological environment;.In order to create enrich the green landscape,we also actively introduce ornamental plants suitable for local growth,in order to enrich the plant species in the road section and make it coordinated and complementary.This paper analyzes the present situation of green space construction in Badaohe station,Badaohe interchange,Qinglong service,K111 040-K112 005 central separator and some slopes in the Cheng--Qin Expressway.For example:the distribution of plants,the pests and diseases of plants,the prune of plants and the density of plants,the weed infection and garbage of plants.The administration ought to pay more attention to the density of the plants and the pollution of weed infection and rubbish.In order to solve the problem,it is proposed to optimize the plant configuration mode,pest management,fertilization management,tree and lawn pruning,and transplanting and replanting,etc..All the measures above provide basis for the further improvement of the transformation.Here are the results of the study below:(1)The green belt construction of Cheng--Qin Expressway follows the principles perfectly.It adjusts measures to local conditions and ensures the ecological security.All above brings us a harmonious and beautiful landscape.(2)The combinations of the evergreen and the defoliation,the green leaf and the color leaf,nature and rulesform the green space design of every single district.But the proportion ofarbor and shrub is not proper enough.In order to get a better function of the landscape,the best ratio is between1/3 and 1/6.However,the ratio of arbor and shrub in Badaohe Station is1:1.1.Further more,the ratio in Badaohe interchange and Qinglong service area is 1:0.7 and1:1.5.Whereas in the central isolation zone marked K111+040-K112+005,the ratio is1:1.2.None of the statistics above satisfies the proper planting need.So it is better to get more and more kinds and quantities of shrub planted.(3)There are plentiful species ornamental plants here in every partition,including 11 kinds of arbor,12 kinds of shrub and 6 kinds of ground cover plants.They are mainly about pine,spruce,elm,acacia,lilac,gold and silver and so on.Also there are large quantities of planting,which includes 2605 stems of arbor,4310 stems of shrub and 16993 ? of grass and flower.To some extent,it is enough for the need of the landscape.But there are some existing problems in every partition because of the lack of following management.For example,the powdery mildew of the wild rose and the harm of aphid and red spider did to the purple leaf plum.The employees of the maintenance management department should trim the planting in time and fertilize them more.Besides,they should make a perfect plan in order to lower the cost and ensure the healthy growing of the ornamental plant.