Evaluation And Recommendation Of Urban Landscape Plants In Shanghang County

Green building as an important part of the whole city' s infrastructure construction,it's also has far-reaching influence.Plant as the main part of city green space,it is the base of protection of city biodiversity,construction of city characteristic landscape.Based on the investigation of garden plants in Shanghang county city,the basic theory of plant diversity,ecology,landscape aesthetics,combined with the status of Shanghang county resources to establish the evaluation model of landscape plants in Shanghang county city,and evaluate the result of comprehensive evaluation based on investigation of plant,working out the plant of Shanghang County landscape classification,Giving a promotion application of plant species of Shanghang County green space.The results are as follows:(1)according to the types of green space were selected statistical investigation and analysis of landscape plants in Shanghang County of typical sample investigation,its family and genus composition,life form,ornamental characteristics were analyzed.The following conclusions:? There are 472 species of urban landscape plants in Shanghang,which belong to the family of 129 genera and 346 species,There are 113 families and 320 genera of angiosperms,and there are about 16 genera,including 8 families and 28 genera,of which there are about 10 species,belonging to 8 families and 10 genera;Shanghang County landscape plants in dominant families cosmopolitan species(He Benke,Rosaceae,Leguminosae,Liliaceae,Moraceae)and pan tropical families(Euphorbiaceae,Magnoliaceae,Palmae,Myrtaceae)in subtropical regions with similar natural conditions.? There are 389 species of native plant species in Shanghang area,belonging to the family of 120families.Among them,there are 8 families and 10 genera of ferns,which belong to the genus of 107 families,105 genera and 359 species.There are about 14 genera and 5 species of gymno sperms in the family of 20 genera.More than 10 families were Euphorbiaceae,Gramineae,Leguminosae,Liliaceae,Moraceae,Lauraceae,rosaceae.?The evergreen trees in the urban green space of Shanghang County accounted for 53.8%,deciduous trees accounted for about 23.7%,The proportion of deciduous trees and evergreen trees is about 1:2.3,The proportion of city structure makes the seasonal variation is not prominent;In the plant statistics,the proportion of high bud plants is about 6%of the total plants,which indicates that the construction time of the urban green space in Shanghang is short.?The ornamental characteristics of landscape plants in Shanghang county are mainly concentrated in flowering plant,followed by Ornamental plant,Foliage plants.Flowering plants to white flowers up to a total of 49,followed by red and yellow,respectively 34 and 32;Foliage plants are 33 species of ornamental foliage and morphological species,and there are about 19 species of ornamental foliage plants,and there are about 3 species of ornamental plants;The results show that the plant landscape of city green space obviously seasonal changes in summer and autumn show,spring leaf plants,flowering plants are less than other seasons.(2)The comprehensive evaluation model of urban landscape plants in Shanghang city was constructed by analytic hierarchy process combined with the current situation of Shanghang urban green space and natural environment,and invesgatied 459 plants were comprehensively evaluated,The comprehensive evaluation of plants was divided into grade?,?,?.Among them,there are 136 kinds of plants of grade ?,there are 214 species of plants in grade ?,there are 109 species of plants in grade ?.The grade of ? showed that it was better and better in all aspects of urban application performance,and it could be widely used in the construction of urban green space in Shanghang;The grade of ? showed that the comprehensive benefit was also good,which could be used as an alternative to the general plant diversity;However,plants of those the grade of ? is low,and there are obvious deficiencies in one or a few aspects,which can be used as the supplement of urban plants according to their habitat conditions.(3)According to the results of comprehensive evaluation of urban landscape plants in Shanghang County,the paper draws up the key tree of urban green space in Shanghang.A backbone tree species,tree species generally,and according to the different classification done to promote the corresponding plant,provides a list of candidates for the Shanghang County plant city green building,provide scientific data for the city landscape construction and development update.