Research On Park Green Space Layout Methods Of The County In Loess Gully Region Of Northern Shaanxi

In view of the existing problems in the planning and construction of the park green space of the county in the loess hilly and gully area of north Shaanxi,the park green space is low,the adaptability of the relevant standard standards is inadequate,and the current layout method is difficult to be applied,etc.,And it is urgent to solve the practical and theoretical problems.Fairness and justice of the concept of public facilities,in-depth research and full integration of the county area of the region's natural environment,economic and social development,urban spatial patterns and the use of parks and other aspects of the characteristics of the population,respectively,from the following aspects.First,park type study.In the framework of the existing classification standard of park green space,according to the characteristics of the close relationship between the county seat and surrounding mountain,the mountain park is unclear and the statistical indicators are random,the characteristics of urban construction land use tension and so on,Put forward the concept of area(hill)park,in order to ensure the seriousness of existing industry standards and adaptability to regional characteristics.At the same time,from the perspective of park green space layout,supplement the concept and connotation of community park,Street park and belt park.Second,park accessibility study.In order to solve the problem of spatial adaptability and spatial fairness of the existing green space layout methods of parks,and to adapt to the trend of fine layout of park green space,traffic pedestrianization and demand-oriented,combined with the characteristics of mountainous terrain,The urban space characteristics of the city and the habit of park use of the inhabitants,the spatial layout method of the community park and the patch area(mountain)park based on accessibility is constructed respectively.The former mainly includes the following four aspects: "the suitable land consolidation of community,Initial point,comparison,point Final selection".The latter mainly includes the selection and assignment of land suitability evaluation factors,establishment and calculation of land suitability evaluation model,selection of candidate sites and distribution of parks.The above methods are aimed at maximizing the adaptability of the local natural environment,the pertinence of the residents 'habit of using the park,the comfort of the residents' travel distance,the minimum number of parks and the economy of the individual parks,and improving the fairness of park green space service the related indexes were also discussed in the study.Third,park enjoy degree research.In view of the existing park green space layout method can not support the concept of social fairness and justice,based on the theory of location entropy and the evaluation method of park green space service level,the concept of the degree of enjoyment,the calculation method and related indexes are put forward,and the optimal layout of park green space based on the degree of enjoyment is established.Including the "determine the scale of park land,service area coverage analysis,enjoy degree calculation,single class park enjoy degree model analysis,comprehensive enjoy degree superposition calculation and model analysis,spatial layout optimization".This method pays attention to the distribution of park green space,the matching between the scale and the service population,and improves the social fairness of park green space service.Finally,the inherent mechanism of park-green layout of "environment-crowd-facility" is extracted,and the spatial structure of park-spillover green space,adaptable park type,suitability index system,and the suitable layout of park green land in loess hilly and gully region of northern Shaanxi was established,Including "spatial structure of green space of park,the adaptable park green space type,the suitability index system,the layered park green space layout method".