The Problems In The Urban Green Space Constrution.

This article is based on the investigation to Lianyungang city's green spaces system.Making use of principles and methods that are relative to ecology,we find out existing problems and the solutions to these problems through analyzing and summing up them.It will make the green spaces plan more scientific and practical,thus contributing greatly to the improvement of the urban green space construction in China.1.The biological problems in the green space structure.The article mainly analysizes the present situations of the main factors of green space: patch, corridor and matrix. It points out that while having an important function, the patches are destroyed to different degrees, with a tendency towards shattering. This kind of phenomenon appears with the accelerating urbanization progress, and can pose great affect to the green space system. The main ways for protecting it are:the building of corridors; analysizing the existing problem in the green space structure through the use of main factors number research method, and propose a solution— the organic structure; searching for solutions for the main problems in the green space structure in the intersecting parts of the patch and matrix.2. The protecting and constructing biodiversity.It brings comprehending the concept of biodiversity comprehensively.Through compare biodiversity with landscape diversity it aim at the misapprehending and partial understanding of the concept of biodiversity. Making use of principles and methods that are relative to biodiversity and analyzing actuality. It points out the necessity of building biodiversity environment and plants source storage; it also answers questions about the bring big trees into the city and planting southern trees in the northern area of China.It request limitting "big trees transplanting" and analyses the relation between planting trees and grasses.3.The problems in the green space function. By analyzing the main problems in the park green space, affiliating green space, production green space, and protection green space, it points out the direction in which the all kinds of green space construction should develop.The green space function is not definite. Landscape function in viewing and admiring , amusement is not enough. Park types are simplex.Landscape plants are simple. Close green space is excessive.Street green space and water front area are many,while active equipments are lesser. It can not satisfy with dweller's daily needs. Planting of housing area is single. Entironment is of a short. Scenery is short of characteristic. All in all,It'whole scenery isn't good.It is short of working nurseries, which makes against urban green space constructing.4. The features of green space. Through comparing city image with city features, it points out that green space scenery and city features are very correlative.It also indicates that the city is modern,but city manner is jumbled and city feature are not definitude.So, aiming to solve the problem that the green space does not havedistinct feature, it points out the city shoud construct city forests and build localcivilization and natural scenery.