基于2SFCA的上海市郊野公园空间可达性的分析.pdf

(1)全市郊野公园空间布局没有明显的规律性,也未形成预期的以核心城区为中心的单中心结构,总体空间分布不均衡现象较为明显,空间分布公平性较差。(2)在欧氏距离的衡量标准下,按40km的服务阈值,上海所有居民都能享受到郊野公园的服务,但超过60%的街道(镇)可达性较差;在路网距离的衡量标准下,即使按40km的服务阈值,仍存在部分区域位于服务区范围外;在交通时间的衡量标准下,超过75%的街道(镇)可达性较差,表明可达性水平整体上处于较低状态。各阈值范围下可达性指数跨度都很大,最大值往往是最小值的数十倍,达到中间值的街道、乡镇数量不足30%,表明研究区域郊野公园空间分布公平性较差。(3)比较直线距离与交通时间两种衡量指标下的研究结果,前者计算和操作起来更为简单方便,但后者的逻辑性更为严密,研究结果也更符合上海市郊野公园空间可达性的实际情况。(4)综合以上分析,建议上海市不仅在郊野公园数量上应有所增加,还应坚持通过城乡土地整治等手段,调整城乡人口分布,从而降低公共服务提供的难度和不公平性。本文研究方法与评价体系仍有待完善,期望在掌握更多资料和实地调查基础上,在以后的研究中进一步深入。关键字:2SFCA;空间可达性;郊野公园;上海;服务区分析万方数据 UU Y2750867 Research on Spatial Accessibility Analysis ofCountry Parks inShanghai Based on 2SFCA ABSTRACT With thesignificant growth ofresidents’travel capabilitiesand a sharp decline ofecological landspace inShanghai,the Country Parkhas e an important public policy tomeet people’S recreation needsand ecological needs ensure public property of country park,notonly lawsandregulations should bepromulgated by the People’SGovernment,but fairness ofsiteselection should berestrained by planning accessibility isthebest embodiment of fairnessand equality ofcountry park on accessibility of country parksCanprovide decision support forthegovernment toseek a reasonable space has important significance toplan country park siteofother domestic cities,determine servicevacancyarea,adjust the urban and rural population distribution,protect the residents’ recreation demand andplay theparks’service function more effectively. Through consulting relevant documents andinformation,this paper uses geographic informationsystem(GIS)technology,geo-politic 3 万方数据 database and heSixthPopulation Census data,to make asummarization and furtherdiscussion ofresearch methods and theories ofcountry park analysis method work analysis method are used to confirm service area of Country on 2SFCA, Euclidean distance andtraveltime,as measurable indicators,are used to analyze accessibility of Count