摘要
公园绿地与城市功能空间存在空间占有及利用的关联,相关特征与演化规律仍有待揭示。引入生态位宽度、生态位重叠、总体和类型间联结性模型,结合POI、土地利用数据,探究2012、2016和2020年南京公园绿地与城市功能空间的空间占有与利用特征,揭示二者关联和演化规律。结果表明:1)公园绿地的生态位宽度呈缩减趋势,与城市各功能空间差异显著;2)公园绿地与城市功能空间整体呈显著正联结,空间格局渐趋稳定,但其与各类型呈不显著联结,稳定性有待提高;3)公园绿地与城市各功能空间均存在不同程度的生态位重叠,空间利用的分化程度渐趋提高,均由正联结向负联结转化,关联度呈商服>公共服务>交通>居住>工业生产空间的规律。研究结果有助于深化公园绿地与城市空间关系理论体系,为存量更新中城市空间资源配置效率提升、空间结构优化提供科学依据。
Park green space,as a fundamental component of urban green ecological spaces,plays a pivotal role in both ecological and recreational functions,making them one of the core elements of the "Park City" construction.They nest and interact with different types of urban functional spaces,primarily hard-gray spaces,presenting dynamic and phased correlation patterns throughout urban evolution.While numerous studies have explored the spatial configurations and functional benefits of park green space and urban functional space separately,there is a lack of comprehensive research that integrates both components into a multilevel system.Furthermore,the few studies that explored their relationships tend to focus on the one-way effects of urban functional space on park green space or general superficial relationships such as spatial distribution.From the perspective of space utilization and allocation which can't be ignored in the process of spatial harmonization,it remains challenging to effectively address the differences in level,directional roles,the degree of interaction between park green space and urban functional space,and the laws of spatial-temporal evolution.This lack of clarity hinders the efficient allocation and sustainable development of ecological-recreational resources and urban spatial elements.To address these issues,this study introduces the theory of ecological niche and connectivity,which offers valuable insights into spatial positioning and the status of resource occupation.This theoretical framework is examined through three levels of correlation:individual elements,overall relationships,and inter-type relationships.Using niche width,niche overlap,and overall and inter-type connectivity models,the study investigates the spatial occupancy and utilization of park green space with urban functional space integrating the Points of Interest and land use data.With the main urban area of Nanjing as a case study,we select nested urban sample zones to reveal the evolutionary patterns at three key time nodes in 2012,2016,and2020.The results show that:1) The niche width of park green space shows a shrinking trend,and its value is significantly lower than those of all types of urban functional spaces,placing individual space utilization at a disadvantage;2) Park green space and urban functional space show a significant positive correlation overall,and the spatial pattern is becoming more and more stable.However,there is no significant correlation with different types,indicating the need to improve their inter-type stability;3) Park green space and each type of urban functional space show different degrees of niche overlap,with increasing spatial utilization differentiation,and the direction of correlation shifts from positive to negative.The degree of correlation follows the pattern:commercial service> public service> traffic> residential> industrial production space.Based on these findings,this study proposes strategies to expand the niche width of park green space by integrating fragmented resources and optimizing the utilization of existing spatial stock.It also advocates for creating a hierarchical structure of urban space niche based on green space and promoting the niche integration of multifunctional composite green space to harmonize the correlation between park green space and urban functional space.This study aims to deepen the theoretical understanding of the relationship between park green space and urban space,providing a scientific and dynamic foundation for improving the efficiency of urban spatial resource allocation and optimizing spatial structure in urban renewal processes.
作者
夏莹欣
吴殿鸣
邵大伟
XIA Yingxin;WU Dianming;SHAO Dawei(School of Architecture and Urban Planning in Suzhou University of Science and Technology,Suzhou 215011)
出处
《中国园林》
北大核心
2025年第4期103-108,共6页
Chinese Landscape Architecture
基金
国家自然科学基金面上项目(51878429)
风景园林学“十四五”江苏省重点学科(2022—2025年)建设经费项目
江苏省研究生实践创新计划(SJCX23_1758)。
关键词
风景园林
公园绿地
城市功能空间
生态位
关联性
南京
landscape architecture
park green space
urban functional space
ecological niche
correlation
Nanjing
作者简介
夏莹欣,2000年生,女,江苏泰州人,苏州科技大学建筑与城市规划学院在读硕士研究生,研究方向为绿地与城市空间耦合效应(苏州215011);通信作者:吴殿鸣,1984年生,女,山东泰安人,博士,苏州科技大学建筑与城市规划学院副教授,硕士生导师,研究方向为城乡生态空间效能(苏州215011),E-mail: wudmsz@163.com;邵大伟,1982年生,男,山东济南人,博士,苏州科技大学建筑与城市规划学院教授,硕士生导师,研究方向为绿地与城市空间耦合效应(苏州215011)。
