Research On The Planning And Design Of Country Park In Loess Hilly-gully Region Of Central Gansu

Under the influence of urban and rural overall planning,rural revitalization,and new demand for leisure tourism,domestic country parks have gradually developed and improved.However,in the Northwest Loess Plateau and other regions of China,due to its complex site conditions and weak economic foundation,the construction of country parks is relatively lagging behind,therefore,the pilot construction and related research in such areas are imminent.This article summarizes the research and construction of country parks at home and abroad,and focuses on the analysis and discussion of the problems and countermeasures for the construction of country parks in China.Secondly,this paper studies and analyzes the cases of country parks and soil and water conservation green spaces,summarizes their planning and design characteristics and can be used for reference to guide the planning and design of the research area.The main research area in this paper,the hilly and gully area of Longzhong,has complex site conditions,frequent geological disasters,severe soil erosion,water shortage,and a single landscape.Based on analyzing of the current situation and problem,the opportunities and challenges faced by the construction of country parks in this area are summarized.It mainly explained the principles of building country parks,explored planning and design methods and strategies,and carried out detailed theoretical deductionon the three aspects of the site's geological protection,rainwater collection and water conservation,and regional landscape modeling to form the main ideas of country park planning and design in hilly-gully region of Longzhong.According to these planning and design methods and strategies,this paper takes the typical representative of longzhong hilly and gully area,Qin'an xishan country park,as an example to verify the feasibility of constructing country park in this area.The author summarizes the current situation of water and soil on the site,and puts forward the two design strategies of "safe ecology" and "open source and throttling".In terms of "safe ecology",multiple factors in the site were superimposed and analyzed by GIS platform,and geo-safe zones were designated to guide the protection level of the park,so as to formulate different geological protection and water and soil conservation measures according to the graded zones.In the aspect of "open source and reduce expenditure",the catchment area is designated to determine the water volume,and the catchment water is used to build the landscape water surfaces and irrigate some plants.In the areas that cannot be irrigated,drought-tolerant species that do not need watering are adopted,so as to realize the self-sufficiency of park water in an ideal state.It also highlights the regional landscapes such as terraces,valleys,etc.Based on these,the park's detailed overall landscape planning design and special design are carried out to provide support and useful reference for related planning research.