The Study On Landscape Architecture Of Roof Greening Of Public Buildings In Xi'an

With the continuously development of city and building site is increasingly lacking, high-density exploitation has been producing ecological interference, it results in a series of negative ecological benefit, the environment has been worsen and urban living and production are affected. The task of perfecting the urban ecological system and improving the urban environment is urgent. Currently, the construction of garden city and ecological city spring up in the guidance of the concept of sustainable development. Roof greening is an effective way to be actively involved in construction of ecological city and to transform urban ecology. It almost as the area of buildings to repay the ground and so it can effectively relieve the contradiction of building covers and the urban green spaces, it can also improve the efficiency of urban space and the load of ecological benefit. In addition, green roof can relieve urban heat island effect and effectively improve urban environment by reducing energy consumption of buildings, improving efficiency and function, strengthening the function of local ecological system.This thesis is composed by five parts. The first two chapters mainly includes the analysis of background, the content and methods of the subject, the study of history and development of domestic and foreign roof greening and the summary of benefits of roof greening etc. The content of the third chapter first analyzes the environment and present situation of greenbelt system in Xian, and then sum up the problems and counter-measures of the current roof greening. This chapter leads the key section from the problem. The fourth chapter is focusing on the landscape architecture of roof greening of office and business building, two representative public buildings, from the theory and principle of roof greening, components, planting design, construction technology, management and maintenance etc. combine the climate characteristics and economic conditions of Xian. The content of the last chapter of the research mainly discusses the practical application of related theory and method, and summarizes the ideas and methods of roof greening landscape design of public buildings in Xian, combining the example of the project of roof greening landscape design of Xian government.In this paper, my own views appear in the study of coordination of landscape and architecture, form of roof greening, native plants etc. after the landscape design of roof greening is systematically studied. Finally, I hope these words can enhance practical skill on design of landscape architecture and promote the further development of the roof greening of public buildings in Xian.