居民的生态系统文化服务需求与公园可达性的关系

Relationship between Residents’Cultural Ecosystem Services Demand and Park Accessibility

公园是生态系统文化服务的主要供给区,探索公园可达性与生态系统文化服务需求的关系,可为生态系统文化服务供需平衡视角下的公园布局与设计优化提供参考。研究以成都市主城区为例,运用GIS空间分析及问卷分析探索居民的生态系统文化服务需求与公园可达性的统计学关联性。结果表明:1)生态系统文化服务需求量与公园可达性呈显著的正相关性,指数随公园可达性的增加而递增,当公园可达性大于17后,居民的生态系统文化服务需求明显提高;2)生态系统文化服务需求缺口并非随公园可达性的增加持续下降,而是呈现先上升后下降的趋势,即可达性中等区间的居民需求缺口最高;3)居民对各类别生态系统文化服务的需求偏好随公园可达性的增加趋于平均化。基于研究结果,对城市公园的布局与设计提出相关优化建议。

Park is the main supplier of cultural ecosystem services(CES).This paper explores the relationship between park accessibility and cultural ecosystem services demand,aiming to provide reference for the layout and design optimization of parks from the perspective of supply-demand balance in culture ecosystem services.The main urban area of Chengdu is taken as an example to explore the statistical correlation between residents’cultural ecosystem service demand and park accessibility using GIS spatial analysis and questionnaire analysis.The results show that:1)The demand for CES has a significant positive correlation with park accessibility,and increases exponentially with the increase of park accessibility.When the accessibility index is greater than 17,the residents’demand for CES increases significantly;2)The demand gap of CES does not continue to decline with the increase of park accessibility,but shows a trend of increasing first and then decreasing,and the average value of the demand gap in the medium range of accessibility is the highest;and 3)Residents’demand preference for cultural services of various ecosystems tends to be average with the increase of park accessibility.Based on the research results,relevant optimization suggestions are put forward for the layout and design of urban parks.