Study On Resources And Design Of Fall-color Trees In Nanjing

In numerous urban infrastructure,only has a life of plants as materials,is playing an increasingly important role in urban construction,which the color of plant leaves and flowers and,moreover,the role of plant leaves leaf color more than flowers,become the important link between the plant landscape construction.Landscape plant leaf color,autumn leaf landscape,much attention has been paid to historically as the Qixiashan red leaves,Beijing Xiangshan,have already become one of the residents travel destination of choice.So for the autumn leaf plant characteristics do more in-depth knowledge is particularly important.The author through to the Nanjing main park plaza and the autumn leaf tracking investigation,based on the vegetation ecology,from the autumn leaves of plant community species composition,population characteristics,sequence and discoloration period coloration of autumn leaf plants such as multiple dimensions of main park and square the autumn leaves of plants in Nanjing plant ecology analysis.In the theory of landscape ecology and landscape architecture under the premise of theory,using the analytic hierarchy process(AHP)to autumn leaf ecosystem of the flora,plant configuration,and create a landscape environment under the three evaluation indexes of nine individual evaluation standard to carry on the comprehensive evaluation.This article selected 5 park as research object,involved a total of 26 sample area,through the analysis of survey data found that:(1)In continuous research,involves the autumn leaves,a total of 35 species of 30 genera belonging to 21 families,including Joe no 34 species,only 1 kind of shrub.Which Rosaceae(6)and Ulmaceae(5)of plants is bigger,respectively 17.1%and 14.3%of the total number of autumn leaves the plant.(2)66.7%of the nanjing main park and square the autumn leaf plants the best ornamental period time in 5 to 15 days,watching the cycle time of the top five plants for:Metasequoia(52),Zelkova sinica Schneid(52),Zelkova schneideriana Hand-Mazz(43),Taxodium ascendens(39),Buckeye(38);Frequency of the top five plants for:Hackberry(11),Gingko(09),Acer palmatum(09),Zelkova schneideriana Hand-Mazz(06),Pistacia(06).(3)Nanjing autumn leaf plants are mostly on October 17,the most low temperature(17 ℃)before starting the leaves change color,and entered into the phase of rapid changes in leaf of color is roughly divided into two periods,one is on October 27th(the most low temperature 8 ℃)before and after the second phase is on November 6,before and after the most low temperature(6 ℃)and complete leaf color change is basically in the November 20(the most low temperature-2 ℃)after a few days ago,on December 6,the most low temperature(2 ℃)before and after completed the entire leaf cycles of color,a slightly different person most ended discoloration period around the end of December.(4)In continuous research,comprehensive evaluation value of the top five is infusing loving park that enjoy rock invites exhibit hold#22,seven bridge urn#6,that enjoy rock invites exhibit hold 15#,12#,24#Hanzhongmen square,its have in common is,community structure,larger autumn leaf plants and has obvious seasonal change,to be able to field the field of perfect expression of the spirit,and has a longer period,to watch over a long distance or close to appreciate the landscape can bring viewers don’t like autumn leaves beauty.Through the above research results mainly park in nanjing and square the autumn leaves a fuzzy understanding and evaluation on the plant landscape,nanjing main park and square the autumn leaf landscape overall present a good landscape effect,common autumn leaves rich in plant species.Through the study of this article,the existing autumn leaves to nanjing do an overview of plant landscape,at the same time,the deficiency of found in the research for the later researchers as example,the results of the study garden builders to provide some help,also hope to be able to help citizens to arrange related autumn leaf ornamental travel plans.