Ecological Infrastructure And Construction Strategy Of City Parks

In the Early history of our country’s garden design, the ecological connotation has been reflected. In modern times, no matter at home and abroad, landscape eco-design theory and practice has also been explored in the designing industry for a longer time. Concerning that the previous ecological garden design methods focused mostly on the level of construction methods, this paper attempts to introduce the concept of Ecological Infrastructure into the urban landscape design area, and make suggestions and strategies about the building of city parks.Adopting the methods of comparative study,literature review,field surveys as well as systematic integration, the article makes a comprehensive analysis of practice of landscape eco-design, the development of green parks and the relative theory of ecological infrastructure at home and abroad, and then made certain research of the related park cases.Traditionally, city parks mainly play the role of provider of pleasant scenery and relaxing spaces. However, when city parks are considered as an integral part of the ecological infrastructure, they should serve as a kind of the natural environment to provide certain ecological services which include: ecosystem acting, environmental improvement and maintenance, biodiversity conservation, cultural and historical continuity, disaster prevention, aesthetics and recreation, etc. The main difference with previous ecological design is that it focuses on keeping the systematicness and contact of ecological environment, emphasizing the joint work done with the surrounding larger-scale regional green.El has been applied in three levels:macro(regional)-meso(city)-micro(venue). When concerned with the design and construction of city parks, we should follow the systematicness principle of eco-system in the macro level in the first place,and perfect the city parks’s connections with surrounding green spaces in the urban dimension to ensure the smooth flow of biological, physical, energy contact channel.Secondly, we should focus on the establishment and maintenance of various types of green corridors, with which parks are able to play as nodes to conserve species and maintain history. Finally, through the guidance of micro-scale eco-technology applications, the parks themselves can play a role in all aspects of energy conservation, flood control, education, tour and diversity of local protection. Beijing Olympic Forest Park is a large urban green park established to meet the2008Beijing Olympic Games, whose construction has concentrated a large number of advanced concepts and techniques. Besides, a lot of concepts and methods during its building are in line with the construction requirements of parks as ecological infrastructure. Combining analysis of the park and the previous research, the article summarized some strategies which park construction should follow under the guidance of EL The main contents include:(1) to maintain the continuity of the ecological infrastructure system;(2)respect to the native status of the environment;(3) diverse native habitats establishment and maintenance;(4) wetlands restoration and maintenance;(5) the application of clean energy and economical use of resources;(6) the establishment of cultural heritage conservation corridor.