Spatial coupling coordination evaluation between land use efficiency and urbanization in the Chang-Zhu-Tan urban agglomeration, China

IF 2.8 3区 地球科学 Q2 ASTRONOMY & ASTROPHYSICS
Qiong Zheng, Huangteng Zhu, Qing Xia, Zixiao Guo, Lihong Zhu
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Abstract

Ensuring that land use efficiency and urbanization are in harmony has emerged as a critical concern requiring immediate attention to achieve sustainable urbanization in China. Taking the Chang-Zhu-Tan urban agglomeration (CZTUA) as an example, this study establishes an evaluation index system of land use efficiency and urbanization using multi-source remote sensing data in 2020 and analyzes the coupling coordination degree (CCD) between these factors. Furthermore, the standardization methods and exploratory spatial data analysis method are combined to investigate the spatial correlation of the CCD among land use efficiency and urbanization. The study shows that: (1) In CZTUA, there is a positive correlation between land use efficiency and urbanization and this promotes urbanization. (2) The overall coupling degree in the CZTUA is in the running-in level and most districts are at the elementary or middle rank coordinated levels. (3) The spatial clustering characteristics have the “center-periphery” pattern, with the further away from the core city, the lower the level of coupling coordination becomes. (4) From the perspective of geographical association, the High-High agglomeration, mainly located in Changsha City, showed higher development levels compared to surrounding areas. Development gradually diminished as one moves outward, forming a Low-High agglomeration. Low-Low agglomeration was represented by You, Chaling and Yanling districts. The methodology used in this study is relevant for promoting urbanization and improving land use efficiency in Chinese city clusters.
长株潭城市群土地利用效率与城市化空间耦合协调性评价
确保土地利用效率和城市化的和谐已成为中国实现可持续城市化的一个迫切需要关注的关键问题。以长珠潭城市群(CZTUA)为例,利用多源遥感数据建立了2020年土地利用效率与城市化评价指标体系,并分析了各因素之间的耦合协调度(CCD)。结合标准化方法和探索性空间数据分析方法,研究了土地利用效率与城市化之间CCD的空间相关性。研究表明:(1)长江三角洲地区土地利用效率与城市化呈显著正相关,促进了城市化的发展。(2)长江三角洲地区整体耦合度处于磨合水平,大部分地区处于初级或中级协调水平。③空间集聚特征呈现“中心-外围”格局,距离核心城市越远,耦合协调水平越低。④从地理关联上看,以长沙市为主体的高-高集聚区发展水平高于周边地区。向外发展逐渐减弱,形成低-高集聚。低-低集聚区以游区、茶陵区和燕陵区为代表。本文所采用的研究方法对中国城市群推进城市化和提高土地利用效率具有一定的指导意义。
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来源期刊
Advances in Space Research
Advances in Space Research 地学天文-地球科学综合
CiteScore
5.20
自引率
11.50%
发文量
800
审稿时长
5.8 months
期刊介绍: The COSPAR publication Advances in Space Research (ASR) is an open journal covering all areas of space research including: space studies of the Earth''s surface, meteorology, climate, the Earth-Moon system, planets and small bodies of the solar system, upper atmospheres, ionospheres and magnetospheres of the Earth and planets including reference atmospheres, space plasmas in the solar system, astrophysics from space, materials sciences in space, fundamental physics in space, space debris, space weather, Earth observations of space phenomena, etc. NB: Please note that manuscripts related to life sciences as related to space are no more accepted for submission to Advances in Space Research. Such manuscripts should now be submitted to the new COSPAR Journal Life Sciences in Space Research (LSSR). All submissions are reviewed by two scientists in the field. COSPAR is an interdisciplinary scientific organization concerned with the progress of space research on an international scale. Operating under the rules of ICSU, COSPAR ignores political considerations and considers all questions solely from the scientific viewpoint.
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