MO Junxiong,SUN Piling*,GONG Qiaoqiao,et al.Spatial-Temporal Differentiation of Urban Green Space and its Influencing Factors: A Case Study of the Yangtze River Economic Belt, China[J].Mountain Research,2024,(2):196-209.[doi:10.16089/j.cnki.1008-2786.000816]





Spatial-Temporal Differentiation of Urban Green Space and its Influencing Factors: A Case Study of the Yangtze River Economic Belt, China
(1. 曲阜师范大学 地理与旅游学院,山东 日照 276826; 2. 中国农业大学 土地科学与技术学院,北京 100193)
MO Junxiong1 SUN Piling12* GONG Qiaoqiao1 LIU Qingguo1 SHEN Dandan1
(1. School of Geography and Tourism, Qufu Normal University, Rizhao 276826, Shandong, China; 2. College of Land Science and Technology, China Agriculture University, Beijing 100193, China)
城市绿地 时空分异 影响因素 地理探测器 长江经济带
urban green space spatial-temporal differentiation influencing factors geodetector the Yangtze River Economic Belt
城市快速发展改变了城市绿地结构和格局,影响城市环境质量和人类福祉,加剧资源环境约束。已有研究侧重对城市或城市群绿地景观形态、布局以及空间格局特征的研究,对自然环境与人类活动差异明显的流域经济带不同河段城市绿地的时空格局、影响因素及其驱动机制分析不足,缺乏实践指导意义。本文以长江经济带为例,运用空间自相关分析方法及地理探测器模型分析2000—2020年长江经济带城市绿地时空分异及影响因素。结果表明:(1)2000—2020年长江经济带城市绿地面积由 3357.66 km2 增加到 13 425.32 km2,城市绿地率由22.56%增加到39.04%,城市绿地率增速呈现出下游>上游>中游的特征。(2)2000—2020年长江经济带城市绿地呈现显著的空间集聚特征且两极分化明显,高值集聚区呈现向东部转移态势,主要分布于江西、安徽、江苏三省交界地区; 低值集聚区趋于中西部山区集聚,主要分布于四川、云南、贵州、湖北交接地带。(3)长江经济带城市绿地时空分异受气候条件、地形条件、人口规模、城市建设、经济发展、区域政策等因素的共同作用,上中下游地区城市绿地时空分异的关键影响因子不同。各影响因子之间的交互作用对长江经济带城市绿地时空分异呈现双因子增强与非线性增强效应。研究可以为长江经济带城市绿地合理布局与城市可持续发展提供一定参考。
The rapid urbanization in the Yangtze River Economic Belt, China has been significantly reforming the structure and pattern of urban green spaces, exerting profound impacts on urban environment quality and human well-being, and aggravating resource and environment conflicts. Previous studies mostly concerned about morphology, composition and configuration of green space in a city or in city cluster, but there was little knowledge of the spatio-temporal patterns, influencing factors and driving mechanisms of urban green space along different reaches of a typical basin economic zone, where cities in the proximity of the river exhibited distinct differences in resource, natural environment and economy; therefore they lacked of practical guidance significance.
In this study, it took the Yangtze River Economic Belt as a case study; spatial autocorrelation analysis and geodetector were used to analyze the spatial-temporal differentiation of urban green space in cities along the basin for the period of 2000-2020 and associated influential factors.
(1)Total area of urban green space in the Yangtze River Economic Belt increased from 3357.66 km2 to 13 425.32 km2, with a growth rate of 22.56% to 39.04% for 2000-2020. The growth rate of urban green space was in an order of downstream area > upstream area > midstream area.
(2)During 2000-2020, urban green space demonstrated a pattern of spatial agglomeration with obvious polarization. The areas of high-value agglomerations shifted to east, mainly distributed in the border areas of Jiangxi, Anhui, and Jiangsu provinces. The areas of low-value agglomerations tended to cluster in the mountainous mid-west areas, mainly in the intersection zones of Sichuan, Yunnan, Guizhou and Hubei provinces.
(3)The spatial-temporal differentiation of urban green space in the Yangtze River Economic Belt was governed by joint effect of climate, topography, population, urban construction, economic development, regional policy and so on; the dominant factors in the upstream, midstream and downstream regions were different. The interaction of factors showed a significant dual-factor enhancement effect and non-liner enhancement effect on the spatial-temporal differentiation of urban green space. The interactions among all influencing factors produced positive effects of two-factor enhancement and nonlinear enhancement on spatio-temporal differentiation of urban green space in the Yangtze River Economic Zone.
This study would provide valuable references for the design of urban green space and sustainable urban development in the Yangtze River Economic Belt.


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收稿日期(Received date): 2023- 07-22; 改回日期(Accepted date): 2024- 03-16
基金项目(Foundation item): 国家自然科学基金(42101258); 山东省自然科学基金(ZR2019QD006)。[National Natural Science Foundation of China(42101258); Natural Science Foundation of Shandong(ZR2019QD006)]
作者简介(Biography): 莫钧雄(1997-),男,广西贵港人,硕士研究生,主要研究方向:土地利用变化的生态环境效应及土地利用冲突。[MO Junxiong(1997-), male, born in Guigang, Guangxi, M.Sc. candidate, research on ecological and environmental effects of land use change and land use conflict] E-mail: mjx461@163.com
*通讯作者(Corresponding author): 孙丕苓(1984-),女,博士,副教授,主要研究方向:土地利用/覆被变化及其生态效应与土地利用多功能。[SUN Piling(1984-), female, Ph.D., associate professor, research on land use/cover change, land ecological effects and land use multi-function] E-mail: spling86@qfnu.edu.cn
更新日期/Last Update: 2024-03-30