Research On Colour Leaf Plant Resources And Landscape Application In Nanchang

Colorful leaf plants are an indispensable part of the ecological garden,which can enrich the landscape composition and color,and highlight the changes of the seasons,which are favored by the industry and have broad prospects.Nanchang has a long history culture and garden experience.It is also a garden city and forest city in China.Based on the colored plants diversity survey of five types of green space city(road,square,parks,residential areas,enterprises and institutions affiliated area),and on the basis of Nanchang colored plants analyzed in applicate frequency,method and aesthetic effect,constructs the plant landscape evaluation system with the method Analytical Hierarchy Process(AHP),point out the existing problems and promote the landscape strategy.The main research results show that:1.There are a variety of garden plants in Nanchang,with a total of 47 families,82 genera,116 species.Among them,trees 64(55.17%),shrub 31(26.72%),vines 10(8.62%),herbs 11(9.48%);evergreen 41(35.34%)and deciduous plants 75(64.66%);There were spring color plants 19(16.38%),autumn color plants 64(55.17%),bicolor plants 4(3.45%),normal plants 10(8.62%)and brindle plants 19(16.38%).There were aceraceae(11 species),rosaceae(9 species)and celadaceae(8 species).2.There were 75 native plants(64.66%)and 41 alien plants(35.34%)in Nanchang.3.Surveyed by 44 sample points of five types green space in Nanchang,the results showed that the top five colored plants were Cinnamomum camphora,Osmanthus fragrans,Prunus serrulata var.lannesiana,Elaeocarpus glabripetalus.Merr and Liquidambar formosana.And the top five important value of colored shrubs were Loropetalum chinense var.rubrum Yieh,Photinia×Fraseri Dress.cv.'Red Robin',Euonymus japonicas cv.‘Aureo-marginatus',Ligustrum vicaryi and Euonymus alatus(Thunb.)Sieb.4.The AHP method was used to construct the plant landscape evaluation system of Nanchang colour leaf plant from three aspects: landscape ecology,landscape ornamental and landscape function.The comprehensive evaluation was the first grade 7(15.91%),the second grade 16(36.36%),the third grade 17(38.64%)and the fourth grade 4(9.10%).Among the five types of green space,the grading of the landscape is: park green space(10.51)> residential area(10.15)> road green space(10.02)> attached green space(8.76)> square green space(8.32).5.Based on the analysis of plant community quantitative analysis and configuration in Nanchang,put forward the existence problem and make the appropriate recommendations.