| Rose is one of the traditional top ten famous flowers in China.Because of its wide variety,rich colors and unique flower patterns,it plays an important role in urban landscaping,production of cut flowers,courtyard landscaping,and home decoration.In order to optimize the beautification of the urban garden landscape of Guiyang,This study integrates literature and field investigation methods to find out the application status of Chinese rose in urban gardening and greening in Guiyang City;Establish rose application landscape evaluation system by analytic hierarchy process,And through it to evaluate and analyze the rose landscape group;Filter out high-quality rose species suitable for Guizhou garden application by scoring method;Filter out cultivation substrates suitable for the growth of French rose through experimental research methods;Recommend suitable varieties and configuration modes for different types of green spaces and landscape clusters with poor landscape effects in garden applications,suitable.It aims to provide a reference for the application and construction of rose in the landscaping of Guiyang and surrounding areas in the future,Make the rose play a higher value in landscaping,Provide a theoretical basis for improving the scientific and artistic nature of rose in the garden application.The main findings are as follows:1.The analysis results of the application status of roses in urban garden greening in the main urban area of Guiyang show:(1)Rose application points are concentrated in Nanming District and Guanshan Lake District,and the rose application points are the most in the protective green space.(2)A total of 129 rose varieties are used,and the commonly used rose varieties are all cultivated outside the province or abroad.(3)The planting forms are mainly solitary planting,row planting,cluster planting,and patch planting;the application forms are mainly flower belts,flower borders,flower beds,flower corridors,etc.(4)The community structure is relatively rich and diverse,and the main application models are trees + shrubs + ground cover,trees + shrubs,shrubs + ground cover and other models.(5)There are a total of 103species(species)of plants used in matching applications,belonging to 52 families and 91 genera,including 60 woody plants and 43 herbaceous plants.Contains the main native plants of Guizhou such as ginkgo,osmanthus,rhododendron,etc.(6)Among the main application points,Luchongguan Forest Park has the largest number of application varieties,reaching 100;the application form of The Zhucheng square application point is the most abundant,mainly using group flower borders,vertical greening,flower beds and other application forms;Deng Gaoyun The Shan Forest Park has the only European-style rose garden in Guiyang.2.The evaluation and analysis results of the application landscape of rose for urban garden greening in Guiyang City show that among the 20 groups of rose application landscapes,there are 4 landscape groups at level I,4 landscape groups at level II,6 landscape groups at level III,and5 landscape groups at level IV.,1 group of Grade V landscape.The order of the evaluation scores of the rose application landscape group for different green space types is: square land>park green space>affiliated green space>protective green space.Among them,the flower border application form of group J2 of The Zhucheng square has the highest comprehensive level.3.Observation and analysis results of 20 introduced Rosa plants show that 95% of the varieties have good adaptability and ornamental properties,among which 7 are excellent varieties with higher adaptability and ornamental properties: Sichuan perfume rose,multi-headed perfume rose,and adenocalyx perfume Chinese rose,single rose,double light yellow perfume rose,rose red perfume rose and multi-flowered long-pointed leaf rose.4.The filtering results of cultivation substrates for French rose growth show that compared with other substrate combinations,in substrate C(20% peat + 40% perlite + 20% humus soil + 20% garden soil),the growth of Libin rose The content of physiological indicators is relatively high.5.The recommended results of urban landscaping varieties and configuration modes in Guiyang City show:(1)Recommended varieties.In the park green space and square green space,we recommend Caiyun,Fragrant Garden,Xinghua Village,and other rose varieties with obvious flowering effects and no or few thorns;in the protective green space,Ira pompon,Monet,red da Vinci,etc.are recommended for good resistance.Self-cleaning varieties;in the subsidiary green space,it is recommended to use the parade,spectrum and Angelaru and other thorny vines as three-dimensional greening to reduce the area and increase the layering of the landscape;the regional green space recommends varieties with fast growth,strong resistance and good ornamental characteristics,such as Rosa Mitsuka,Sichuan perfume rose and the multi-flowered long-pointed leaf rose.(2)Recommended configuration mode.Flower wall application configuration mode recommended: Angela rose,Rosa glabra,clematis +green wave rose,fine-leaf beauty cherry,alum root,buddha grass;Flower door,flower gallery application configuration mode recommended:Parade/Angela+ Harmony,Vine Rainbow + Purple Star,Bolero +Calendula,Queen’s Carriage + Boxwood;Recommended Flower Border Application Configuration Mode: Cherry Blossom + Blue Sage,Pink Spiraea,Pink Fan Rose,Blue Moon Rose,Wood chrysanthemum,hydrangea,lupine flower,martian flower + moheim rose,golden mary rose,impatiens,green onion,beauty cherry,vinca,petunia;flowerbed application configuration mode recommended: Meilang lipstick,red fan,gold Mary,Wonderland + Ophiopogon japonicus,Four Seasons Begonia,Dianthus,White Clover;Recommended configuration mode for tree-shaped rose application: tree-shaped red fan + string of red,tree-shaped powder fan + harmony,tree-shaped Hanqian + winter plum,tree-shaped Golden Phoenix + Golden Mary.In the main urban area in urban gardening and greening of Guiyang,the application of Chinese rose is widely distributed,diverse application forms and good landscape effects,indicating that the rose is suitable for landscaping applications in Guizhou and is worthy of promotion.This research filtered out 7 excellent rose garden varieties and cultivation substrates suitable for the growth of French rose,and made variety selection and application configuration model recommendations for different types of green spaces and application forms,which is helpful for the promotion of rose in Guizhou landscaping construction application. |