Study On Planning Of Landscape Plants In City Green Space System Planning Of Guangshui

Owing to the increasing manifestation of issues concerning urbanization and the burgeoning of landscape garden cities, growing importance has been attached to the construction of ecosystem within urban green space, where vegetation constitutes its main body as well as its only living material foundation. Therefore, the application and arrangement of the plants will act as much on the ecological functions of urban green space as on its view. The city of Guangshui, located in the hilly urban area of northeastern Hubei, is comparatively abundant in zonal vegetation types; however, its current green space is faced with the lack of variation and structure of vegetation communities. This paper, in light of the theory of seminatural communities, intends to investigate the vegetation planning in the urban green space of Guangshui.This paper will begin with a research into the theory of seminatural communities, including its concepts, causes, and features while taking into account the contents of vegetation planning in urban green space. The analysis will demonstrate that seminatural communities can serve as the theoretical grounds on which the vegetation planning is justified. They are also essential to the construction of a stable urban green space system, featured urban landscapes, and species variety. The vegetation types and the dominant species in seminatural communities can provide the basis for the plant selection and proportion so as to properly characterize urban green space with zonal vegetation and bring into better play the stability of its ecological system.Secondly, information about the vegetation types in seminatural communities and their regional features in the city of Guangshui has been collected by means of field study. The study has shown that in the seminatural communities in Guangshui, the primary vegetation types consist of such zonal types as horsetail pine forest, chinese fir forest, cypress thickets, oak forest, and Liquidambar formosana forest. Meanwhile, the area enjoys the healthy growth of the vegetation communities that include fragrant camphor tree, Liquidambar formosana, pinus massoniana, holm oak, crape myrtle, dyetree, cork oak, and cacumen Platycladi. The vegetation types under research consist of5families,11genuses, and25types of gymnosperms and75families,170genuses, and326types of angiosperms, among which the dominant families are rosaceae, fahaceae, fagaceae, lauraceae, ulmaceae, and celastraceae, each covering over10types of plants. These families are crucial to the flora formation and characterization within the seminatural communities in question. Additionally, compared to the total families in this area, the proportion of the vegetation families in the globe, in tropical zones, intemperate zones, and in China are respectively17.5%,42.5%,36.25%, and2.5%. According to the statistics, it is evident that the tropical vegetation types are the most abundant, followed by the temperate types, which marks the flora’s transition from subtropical to warm temperate zones.Further investigation has been carried out concerning the current application of vegetation in Guangshui’s urban green space, which shows that there are in total51families,85genuses, and118types of vegetation, including7families,10genuses, and13types of gymnosperms and44families,75genuses, and105types of angiosperms. There are24families,14genuses, and55types of trees,24families,36genuses, and45types of shrubs, and7families,14genuses, and18types of herbs, lianes, and bamboo plants, which include13types of herbs3types of lianes, and2types of bamboo plants. There are34families,50genuses, and70types of evergreen tree species,26families,37genuses, and48types of deciduous tree species,50types of flower plants, and41types of foliage plants.The final discussion will argue that the vegetation planning in Guangshui’s urban green space should follow the principles of highlighting the characteristics of seminatural communities, insisting upon matching species with the site, considering both natural rules and human history and culture, and combining ecology with garden aesthetics. This paper will including the results of the various species of plant planning content ratio, select the tone and backbone tree species, and the wide water city flower and city tree recommendations. This paper will also propose methods of classification and planning according to various kinds of urban green space in Guangshui and put forward a layout mode that complies with the three particular vegetation types of the city.