摘要
在全球气候变化等诸多挑战下,实现城市绿地的均衡配置是增加城市韧性、保证居民健康幸福的重要途径,而高密度城区绿地的均衡发展存在极大空间限制,基于此,提出将非正式绿地(IGS)作为提升城市绿地公平性的重要潜在空间,以不同方式将IGS纳入现有公园绿地系统,以缓解绿地资源不公平的问题。以徐州市老工业区鼓楼区为例,基于高斯两步移动搜索法、基尼系数方法,量化鼓楼区公园绿地公平性现状水平,进而建立一种以促进绿地公平性为目标的IGS更新时序评估方法。研究结果表明:(1)徐州市鼓楼区公园绿地处于严重不公平状态,公园绿地现状基尼系数高达0.79。(2)78.46%(51块)的IGS对于提升鼓楼区公园绿地公平性具有不同程度的潜力,但“非常高”和“高”潜力值IGS占比仅为1.54%和4.62%,提升潜力有限。(3)鼓楼区公园绿地布局优化方案中拟新增综合公园选址10处、社区公园选址8处、游园选址3处。研究结果可为高密度城市建成区的绿地更新规划提供精细化参考,也可作为棕地、闲置地功能更新决策的重要依据。
In the contemporary city,where numerous challenges such as global climate change are increasingly prevalent,the strategic allocation of urban green spaces emerges as a crucial mechanism to bolster urban resilience.Furthermore,the equitable distribution of these green spaces is paramount for safeguarding the health and well-being of urban residents.However,the pursuit of such balance is notably arduous within the context of high-density urban areas,where spatial constraints impose significant limitations on the development and distribution of green spaces.This paper proposes to use Informal Green Spaces(IGS)as an important potential space to improve the equity of urban green spaces.To address the issue of spatial limitations,the paper suggests that IGS should be integrated into the existing urban green space system through a variety of innovative and contextually sensitive strategies.By doing so,it aims to alleviate the problem of unequal distribution of green resources,which is a common issue in densely populated urban environments.To this end,the study takes the Gulou District,located within the old industrial area of Xuzhou City,as a case study.Utilizing the Gaussian two-step moving search method coupled with the Gini coefficient method,the paper conducts a quantitative assessment of the current equity levels of urban green spaces within the district.Moreover,the research establishes a temporal evaluation framework for the renewal of IGS,which serves to further promote the equity of green spaces over time.The results show that:(1)The green spaces in the Gulou District of Xuzhou City are in a severely unequal state,with a Gini coefficient of 0.79.(2)78.46%(51 plots)of the IGS have varying degrees of potential to improve the equity of green spaces in Gulou District,but the proportions of IGS with very high and high potential are only 1.54%and 4.62%,respectively,with limited potential for upgrading.(3)The renewal plan for the spatial distribution of green spaces in Gulou District includes the proposed addition of 10 comprehensive parks,8 community parks,and 3 gardens.The comprehensive guidance provided by the study′s findings is of significant utility for the renewal planning of green spaces within high-density urban built-up areas.It can inform and guide the strategic development of urban green spaces in a manner that is cognizant of the need for equity and sustainability.Moreover,the study′s insights provide a substantial basis for decision-making processes in the context of brownfield redevelopment and the repurposing of idle land functions.By doing so,the research contributes to the broader objectives of sustainable development within urban communities.
作者
冯姗姗
陈怡沁
寇晓丽
李成
常江
FENG Shanshan;CHEN Yiqin;KOU Xiaoli;LI Cheng;CHANG Jiang∗(School of Architecture and Design,China University of Mining and Technology,Xuzhou 221116,China)
出处
《生态学报》
CAS
CSCD
北大核心
2024年第20期9173-9182,共10页
Acta Ecologica Sinica
基金
国家自然科学基金项目(42001241)
中央高校基本科研业务费专项资金(2023ZDPYSK11)。
关键词
非正式绿地
绿地公平性
更新时序
高斯两步移动搜索法
徐州市
informal green space
equity of green space
renewal sequence
Gaussian two-step moving search method
Xuzhou City
