| With the acceleration of urbanization in Harbin, many migrants settled in Harbin and the real estate rapidly developed. Under the impetus of the housing regulation reform, house becomes a popular commodity. When people purchased house, they increasingly pay attention to landscape of residential environment. Application of plant’s self-purification and regulation of ecological features was valuable for residential environment.This study focused on Harbin, an typical city in higher latitude region, and eight typical residential areas including’Hongqi’,’Minjiang’,’Aijian Ziyuan",’Aijian Jinyuan’,’The city in Europe’,’Taifu Changancheng’, "Four seasons on East’. and’Chenneng Creek Green’was studied. A total of 39 plants derived from green land center of these eight residential areas, were selected. Tree leaf area was measured via CI-203 laser leaf area meter and then calculated the leaf area index of all tested plants. The rate of photosynthesis and transpiration of these tested plants were measured through Li-6400 plant photosynthesis, and then, calculated capacity of release oxygen and fix carbon, decreasing temperature and increasing humidity, fixation dust of plant in eight tested residential area. NTsys2.11 software was used to do cluster analysis for ecological benefits. GGE-biplot software was used to evaluate leaf area index, capacity of release oxygen and fix carbon, decreasing temperature and increasing humidity, and fixation dust of plant in eight tested residential quarter, and then the biggest eco-efficiency configuration was build based on advantages plants. The result was followed:1) Plants in eight tested residential quarter were surveyed, which involved 60 kinds of trees and shrubs. Of them,37 kinds of trees, accounted for 61.7%; 23 kinds of shrubs, accounted for 38.3%. After calculating the frequency of application of tree species, a total of 39 species was selected to be used as tested plant.2) Leaf area index of 39 species, were measured, which showed tree> shrubs, evergreen> plants. The leaf area index of 23 arbor species and 16 shrub species was sequenced. Cluster analysis leaf area index of 39 species was analyzed via NTsys2.11 software; the results showed that these tested plants were classified into three kinds.3) Release oxygen and fix carbon in unit leaf area and unit land area was different in these 39 species, generally, release oxygen and fix carbon capacity between tree and shrub was similar in unit leaf area, however, release oxygen and fix carbon capacity of tree was more than that of shrub for unit land area. NTsys2.11 software was used to do cluster analysis for Carbon fixation and oxygen release of 39 species, the results showed that these tested plants were classified into three kinds. Release oxygen and fix carbon in unit land area of these tested plants were evaluated via GGE biplot software, the distinguishing ability of tested land, analysis of plant adaptability,based on comparison with deal plant, it is concluded 15 stable plants with better release oxygen and fix carbon.4) Decreasing temperature and increasing humidity in unit leaf area and unit land area was different in these 39 species, generally, Decreasing temperature and increasing humidity of tree in unit leaf area was better than that of shrub, however, release oxygen and fix carbon capacity of tree was more than that of shrub for unit land area. Decreasing temperature and increasing humidity of deciduous species in unit leaf area and unit land area were better than that of evergreen species. NTsys2.11 software was used to do cluster analysis for decreasing temperature and increasing humidity of these 39 plants, the results showed that these tested plants were classified into four kinds. Decreasing temperature and increasing humidity of these tested plants were evaluated via GGE biplot software, the distinguishing ability of tested land. analysis of plant adaptability. based on comparison with deal plant, it is concluded 16 stable plants with better release decreasing temperature and increasing humidity.5) Fixation dust in unit leaf area and unit land area was different in these 39 species, generally, fixation dust of coniferous plant was better than that of broad-leaved plant. NTsys2.11 software was used to do cluster analysis for fixation dust of these 39 plants, the results showed that these tested plants were classified into four kinds. Fixation dust of these tested plants was evaluated via GGE biplot software, the distinguishing ability of tested land, analysis of plant adaptability, based on comparison with deal plant, it is concluded 16 stable plants withbetter fixation dust.6) Comprehensive ecological benefit perform was evaluated via GGE-biplot, sevent een species were best and stable perform. According to dust absorption of these sevent een species, their order was Populus alba(P5)>Ulmus pumila(P6)>Viburmum sargenti(P3 0)>Malus asiatica(P16)>Lonicera maackii(P32)>Syringa oblate(P25)>Forsythi suspense (P26)>Malus baccata(P23)>Belula platyphylla(P7)>Weigel florida(P38)>Catalpa ovata(P1 9)>Maackia amurensis(P10)>Amygdalus triloba(P33)>Syringa reticulate var. amurensis(P1 4)>Prunus maackii(P17)>Cornus alba(P28)>Tilia amurensis(P12). At last, combined wit-h category clustering analysis and stability species via GGE analysis, propose the optimi-zed configuration structure and replaceable species.In all. this study focused on residential quarter green land in Harbin, use single specie as the research object, and study the ecological benefits of Harbin residential quarter green space tree species. Based on the basis of the traditional measurement and calculation method, ecological benefit research via GGE biplot analysis, which provide the reference for construction of plant configuration mode at residential area in Harbin. |
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