| The strategy of "rejuvenating the country by science and education" has been put forward,Higher education is gradually developing towards more and more popular.For this reason,the expansion of the new campus and the reconstruction of the old campus are like a raging fire.As a part of the educational environment,campus landscape has also won more and more attention,among which the color-leafed plants that bring huge benefits to campus landscape have been favored.Therefore,it is great significance to study the status,analyze the problems and explore the application mode of color-leafed plants in the future.On the basis of studying the relevant literature at home and abroad,this paper chooses 8 old and new campuses of four typical universities,such as NanJing University,NanJing Normal University,NanJing University of Finance and Economics,NanJing University of Posts and Telecommunications,to conduct on-the-spot investigation on the application of Color-leaved tree species in 40 sample plots of 5 functional areas of the campus,applies landscape aesthetics and landscape ecology to the configuration form,species composition.Quantitative characteristics and ornamental characteristics,and the landscape aesthetic perception was evaluated by analytic hierarchy process(AHP)and fuzzy evaluation.The main results are as follows:(1)By investigating the five functional areas of teaching area,sports area,leisure and recreation area,living area and road greening in four typical universities in NanJing,it is found that there are differences in the allocation forms and the selection of tree species in different functional areas,and the landscape quality is also different;among them,the better allocation forms are teaching area,leisure area,followed by sports area and living area.road greening the overall level of the district is poor and needs to be improved.(2)Through the analysis of community characteristics of Color-leaved tree species in 40 sample plots,it can be seen that most of the Color-leaved tree species in university campuses are native tree species,among which deciduous broad-leaved tree species,evergreen broad-leaved shrub species and coniferous tree species are less.The number and species advantages of Color-leaved trees are obvious,the species and quantity of C olor-leaved shrubs are at a disadvantage.Only a few of Color-leaved trees and shrubs are fully utilized.In the application of Color-leafed trees in campus green space,the Red-leafed trees are dominant in spring,yellow-leafed trees in autumn,and the species are more abundant than those in spring,while the evergreen-leafed trees are less.In the application of Color-leafed shrubs,the Red-leafed trees are dominant in spring and autumn,and the spring-leafed trees are more than autumn-leafed trees,while the evergreen and spot-leafewer are relatively fewer.(3)Through the comparative analysis of the application effect of Color-leafed tree species in the new and old campus,the overall landscape effect of the new campus is better than that of the old campus,and the landscape of Color-leafed tree species in some sample plots of the old campus needs to be improved urgently.(4)In the aesthetic evaluation,the order of weight of the three B-level indicators is plant individuals.The landscape aesthetics of the colour-leaved tree species community in university campus is better as a whole.plant allocation and environmental construction from.There are 13 grade Ⅰ plots,21 grade Ⅱ plots and 6 grade Ⅲ plots.Based on the analysis of 40 sample plots,this paper summarizes the current situation and existing problems of Color-leaved tree species landscape in NanJing University,and puts forward some optimization suggestions,which provides a reference for the future use of Color-leaved tree species in University campuses. |
