基于改进型2SFCA的梅州城区公园绿地与人口耦合度的分析  

Analysis of Coupling between Urban Resident and Green Space of Typical Valley City in Northwest of Guangdong Province : A Case Study of Meizhou City

作　　者：陈志云[1] 蔡润鹏 谢作轮 CHEN Zhi-yun;CAI Run-peng;XIE Zuo-lun(School of Geography and Tourism,Jiaying University,Meizhou 514015,China)

机构地区：[1]嘉应学院地理科学与旅游学院,广东梅州514015

出　　处：《嘉应学院学报》2022年第3期49-55,共7页Journal of Jiaying University

基　　金：广东省自然科学基金(2021A1515012597);广东省普通高校重点领域专项(新一代信息技术)(2021ZDX1065);嘉应学院2020年大学生创新创业训练计划项目(202010582188)。

摘　　要：以居住单元为研究尺度,基于网络分析法及2SFCA改进型,分析评价梅州城区公园绿地与人口空间耦合度,采用网络分析法修正2SFCA计算过程中的空间作用域,以提高可达性结果精度.结果表明:(1)日常步行下仅有30%城市人口能够在15 min内达到公园,骑行和自驾方式仍不能满足全部居民15 min内到达公园绿地的需求;(2)改进型2SFCA显示32%的区域可达性为0.相较于原式,其在极值区域可达性数值出现较大差异.总之,梅州市人口与公园绿地空间分布耦合性较差,研究结果可为梅州市公园绿地的规划布局提供科学参考.Taking the residential unit as the research scale,based on the network analysis method and the improved two-step mobile search method,the coupling degree between the park green space and the population space in Meizhou city is analyzed and evaluated..The results showed that:1)Only 30%the residents can reach the park within 15 minutes by walking.Even though cycling and driving still cannot meet the needs of all residents to reach the park green space within 15 minutes.2)The improved 2-step floating catchment area method shows that 32% of the regional accessibility is0.Compared with the original formula,the reachability values in the extremum region are different.In general,the spatial distribution coupling between the residents and the park green space is poor in Meizhou city.The research results can provide some scientific reference for the park green space construction in Meizhou city in the future.

关 键 词：公园绿地 可达性 高斯型两步移动搜索法 网络分析法 梅州城区 

分 类 号：TU985.12[建筑科学—城市规划与设计]