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摘要：本文采用实地抽样调查和走访相结合的方法对徐州市保利鑫城小区、世茂东都小区、下洪尚景园小区及香溪左岸小区4个新建居住小区外来树种的应用情况进行了调查。结果表明：新建成居住小区现有绿化树种112种（包括部分变种），隶属42科70属。其中，乔木与灌木种类比约为1:1.47，落叶树种与常绿树种之比约为1:0.74，乡土树种有57种，外来树种有55种，乡土树种与外来树种的比约为1:0.96，大部分绿化树种生长良好。同时，对四个新建成居住小区的绿化树种生长状况进行调查和对外来树种的应用进行种类综合对比以分析徐州市新建成居住小区绿化树种的应用情况。最后，在调查分析的基础上分别提出了相应的改进建议：应增加乡土树种的应用，以提高本地特色；丰富外来树种应用形式，着力表现出外来树种的优势，注意树种的生态学习性；增加变色叶树种的应用，以丰富四季景色；加强绿化树木的后期养护。32530
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毕业论文关键词：外来树种、新建成居住小区、树种、调查、徐州市
Study on the application of Exotic tree species of The newly built communities in Xuzhou City
Abstract：This article investigated and applicated Exotic tree species and their disposition situation of four XuZhou newly built communities by adopting the method of field sampling combined with visits. They are：Baolixincheng community、Shimaodongdu community、Xiahongshangjing community、Xiangxizuoan community.The results are as follows:There is a total of 112 greening trees (including varieties) in these newly built community, belonging to 42 families and 70genera.In addition, the proportion of trees and shrubs species was 1:1.47,the ratio of deciduous trees and evergreen trees was 1:0.74,there were 57species of native trees and 55 species of exotic trees, the ratio of native green trees and exotic green trees was about 1:0.96; and most of the green trees growed well.At the same time,in order to analyze the application of green tree species in newly built community, it make a survey of growth situation on green trees species and make a comprehensive comparison on the application of exotic green trees species.Finally, based on the analysis in the survey, it put forward corresponding recommendations for improvement: it may highlight the local characteristics and increasing the use of native trees in community;Increasing the application forms of exotic trees,focus on showing the advantages of exotic trees，take care of the ecological habits of green trees species;Improving the use of color leaf tree species,to rich the view of different seasons;Enhancing maintenance and management of green trees.
Key words：Green of community、 Exotic tree species、Newly built communities in Xuzhou、Greening tree species、Application on tree species
目 录
1、 新建成居住小区概况 3
1.1 保利鑫城小区概况 3
1.2 世茂东都小区概况 3
1.3 下洪尚景园小区概况 4
1.4 香溪左岸小区概况 5
2、 调查内容与方法 5
3、 调查结果与分析 6
3.1各小区树种构成情况分析 6
3.1.1 保利鑫城小区 6
3.1.2 世茂东都小区 7
3.1.3 下洪尚景园小区 8
3.1.4 香溪左岸小区 8
3.2 新建成居住小区外来树种构成情况分析 10
3.2.1 外来常绿乔木 11
3.2.2 外来落叶乔木 12
3.2.3 外来常绿灌木 12
3.2.4 外来落叶灌木 12
3.2.5外来藤本植物 12
3.3新建成居住小区外来树种与乡土树种的数量对比分析 12