Research On The Landscape Plants Investigation And Evaluation Of Three New Parks In NanNing

Parks which is the most representative landscape, is most important part of urbab.As one of four garden construction elements.The plant which has high ornamental characteristics and some ecological benefit,like adjust the air component,water conservation,improve the microclimate and reduced noise,has been paid more and more attention recently.The paper focused on the plant species and plant landscape evaluation of three city parks in Nanning(Children’s Park,Mingehu Park,Binshui Park).Mainly research achievements are:1.Through research on the plant species of three parks,its found that are 217 species plants belonging to 161 genera in 73 families.It has 86 species arbor,60 species shrub,54 species herb,11 species bine,6 species bamboo.The number of the arbor,shrubs,herb,bine,bamboo plang species accounted for the total number of investigations is 39.63%,27.65%,24.89%,5.07%,2.76%.2.Through the sufficient investigation of 3 parks’plant,the paper analyses the dominant families and the dominant species。Found the dominant families which includes Palmaceae, Caesalpiniaceae, Myrtaceae, Gramineae, Apocynaceae, Agavaceae;And the dominant species which includes Plumeria rubra, Lagerstroemia speciosa, Senna surattensis, Duranta repens cv. Dwarf Yellow, Cycas revoluta. Bougainvillea spectabilis, Zoysia matrella, Ophiopogon bodinieri。The most dominant species belong to exotic plant,the native plant either in total number or the dominant species,are applied less.3.Through the analyses the ornamental characteristics of the park plant,was found have 55 species of flowering plants,which is accounting for 25.35% of the total plant;50 species of composited ornamental plant,accounting for 23.04%;48 species of houseplants,accounting for 22.12%;47 species of shaping plant,accounting for 21.66%;Other types of ornamental plant less.Analyzed the landscapeplant’s changing of different seasons,found the most species which can ornament in spring and summer,lack of the autumn species.4.The paper has constructed a complete evaluation systerm.And the paper select 10 evaluating indicators about landscape ecological benefit and recreation.48 typical plant landscape were elected to evaluate by Analytic Hierachy Process.The outcome of the comprehensive evaluation index showed that the plant landscape puality of Nanning is moderately high.They have 12 plant landscape were on the first grade,23 plant landscape were on the second grade,8 plant landscape were on the third grade,5 plant landscape were on the fourth gfade.The landscape quality of 3 parks is different.MinGeHu park has the highest landscape quality,the second is BinShui park,Children park plants landscape quality is the worst.5. Through the sufficient investigation of 3 parks,the paper analyses the problems of the plant landscape in NanNing. Which includes the few species of plants in city park;Less bine,aquatic and bamboo plant; High similarity of palnt in the different paeks; Lack native plants about landscape plant. Understory plant landscape is monotonously; Low levels of the landscape plant caring; The plant landscape design was not suitable for the environment;Plant science was dysfunctionaly.6. Based on the data surveyed and combined the need of NanNing landscape development,the author have some sujjestions about the application of city park landscape plant. Which are:strengthed the development and utilization of native plants;expanding the introduction and promotion of good landscape plant; Increase the level of the plant community landscape;Riched wetland space plant landscape;Developing the level of planning,design and application; strengthening the care about landscape plant; launching the landscape plant science education appropriately.And recommened some plants which fit for Nanning.The last, Changed the part of the plant landscape.