Study On Ecological Design Of Urban Park In Yan'an City

In recent years,the rapid development of China's economy has caused frequent problems in the ecological environment,and the ecological environment is facing the most severe test in history.The state attaches great importance to this and has successively introduced a series of policies to curb the momentum of the environmental deterioration,and plans to restore the ecological environment.Yan'an City responded to the national policies and actively carried out ecological restoration and reconstruction projects,and achieved a series of results.At present,Yan'an City's old city reconstruction and new city construction are in full swing.As the "green lung" of the earth,the garden plays an irreplaceable role in the regulation and restoration of the ecological environment.City park is the most important green space of the city and undertakes the important task of repairing and maintaining the urban ecological environment.This requires the garden workers to carry out the landscape design and construction to fully reflect the ecological nature.This paper selects the representative Yan'an Zaoyuan Park,Yan'an Victory Square and Yan'an Shifogou Riverside Park as target parks,practicing according to garden elements separately.In addition,typical plant communities were selected as research objects to conduct ecological experiments in each park,the soil under the plant communities was collected separately and the physical and chemical properties of the soil were analyzed.Through qualitative evaluation and experimental analysis,the advantages and disadvantages of the target park design are discussed,making suggestions for optimization of the inadequacies.Finally,the following conclusions are drawn:(1)The plant design of Yan'an City Park should be based on the deciduous arbor + shrub + lawn community form,highlight the native plants,make appropriate use of exotic plants and economic tree species,attach importance to seasonal changes and vertical greening,and rationally arrange open and closed spaces.Creating plant landscape with cultural,ecological and artistic features.(2)The landscape design of Yan'an City Park should be based on the premise of imitating nature,and the landscape should be selected rationally according to the park area,the design of rock should be integrated into the cultural connotation,the design of water should introduce rainwater collection and recycling system,and the construction of park water system in conjunction with surrounding river,dry landscape or dry river can also be used instead of waterscape,and the construction of ecological revetment should be emphasized.(3)The architecture and furniture design of Yan'an City Park should focus on the preservation and renovation of the site's environment,pay attention to the use of environmentally-friendly building materials and local building materials,do a good job in building detailed design,and introduce clean energy.The most important thing in design is to show the cultural connotation.In addition to the red culture and regional culture,we should maintain an open attitude towards the excellent culture at all times and in all over the world,and handle well the relations between cultures.(4)The landscape road design of Yan'an City Park shall adhere to the people-oriented principle and reasonably divide the grade of the landscape road.Different roads shall be selected according to local conditions and priority shall be given to the laying of the ecological park road.Design should be combined with other garden elements,and on the basis of ensuring function and aesthetics,the ecological corridor should be set aside.(5)The topographic design of Yan'an City Park should be based on the principles of conservation and transformation,integrate the needs of various groups of visitors,balance the earthwork,and solve the drainage problems as much as possible.The relationship between the topography and other garden elements should be well handled,create a variety of landscapes through the rich changes in the terrain.(6)Yan'an City Park should make good publicity,call on tourists to take away personal rubbish to prevent pollution of the soil;We should also strengthen management,remove debris in the soil in time,and apply organic fertilizer appropriately so as to improve the soil environment,beautify the appearance of the city park and improve the grade of urban park.