The Improvement Of Huff Model And Its Application In The Analysis Of Urban Park Service Capacity

As a major recreation place in a city,urban park play an important role in ecological,economic and social benefits,in the way of urban sustainable development plays an indispensable role.In this paper,the urban park within the third-ring road in Shenyang as the research object,using ArcGIS9.3 software,construct the urban park,roads,demographic data,combined with the tourists number in urban park actually to improve Huff model,based on the improved Huff model measured the number of attracting leisure residents reached the urban park,service area,and the average time to the urban park.And then analysis of urban green space service ability,provide theoretical basis for the urban park planning in Shenyang,and put forward the optimization suggestions.Results show that Shenyang urban green space is at a development stage,the Shenyang urban park distribution is uneven,the center area of the urban park in the study area are few in number,the characteristics of the area is small,leading to the urban park service area is small,but the population base is large in this area,the existing urban park is facing bigger service pressure.In the study area,third-ring road nearby urban park service area is larger,fewer potential tourists in park,to a certain extent caused the park green space service resources waste.From each district,urban green space service level is higher in Shenhe district;The urban green space in Huanggu district service pressure is relatively larger than Shenhe district;Yuhong urban green space accessibility is poorer;Heping district urban green space service pressure is big,the potential number of recreation per unit area in Dongling district urban green space is at least,the Dadong district urban green space service pressure is bigger than Yuhong,its service ability is bad,The high density residential building lead to little number of urban park in Tiexi district,caused the urban park pressure is big.Combining the results of data analysis,the urban park layout is put forward reasonable Suggestions:distribute the urban park balanced;reasonable to increase the number of urban park,see seam in green;improve the park management system.This study can provide theoretical reference for urban park optimization layout in future,promote government put the limited funds into urban park planning reasonable,provide the planning strategies and Suggestions in the area of highest construction demand of the urban park,promote and improve the urban park system construction.