基于夜间灯光数据的中国城市增长与收缩时空动态特征分析
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作者单位:

1.塔里木大学水利与建筑工程学院;2.浙江大学建筑工程学院

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基金项目:

国家自然科学基金项目(面上项目,重点项目,重大项目)


Analysis of spatiotemporal dynamic characteristics of urban growth and contraction in China based on night light data
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Affiliation:

1.Tarim University;2.浙江大学建筑工程学院;3.College of Water Resources and Architectural Engineering, Tarim University,

Fund Project:

The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)

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    摘要:

    城市增长与收缩都是快速城镇化的必然结果,过度的增长或收缩都会带来资源错配、生态环境恶化等问题。研究基于1992―2019年中国各区县夜间灯光数据,深度挖掘中国城市增长与收缩的时空动态特征及其成因,以期为未来新型城镇化建设、资源均衡配置和国家发展政策制定提供借鉴依据。研究发现:①中国城市增长与收缩现象交替发生,城市增长与收缩两极分化特征越来越明显;②形成了较稳定的增长轨迹,城市增长的重心一直在南阳市内移动;并呈现出带状为主、点状为辅的增长结构;其中带状增长结构包括沿海城市带和近期形成的“北京―郑州―南昌”城市带,点状结构是指以内陆省会城市为核心的集聚增长现象。③形成了由东北转向华中、再转向华西的城市收缩轨迹,收缩重心由邢台市转移到安康市,收缩重心出现了明显的变动;收缩结构由分散的点状收缩逐渐转变成了“北京―西安―成都―昆明”方向的带状收缩结构;④全球化的金融周期变化、产业结构转型、国家政策等因素都是中国城市增长、收缩的主要动因。

    Abstract:

    Urban growth and contraction are the inevitable result of rapid urbanization. Excessive growth or contraction will bring problems such as resource mismatch and ecological environment deterioration. Based on the nighttime light data of China's districts and counties from 1992 to 2019, this paper deeply explores the temporal and spatial dynamic characteristics and causes of urban growth and contraction in China. In order to provide reference for the future new urbanization construction, balanced allocation of resources and national development policy-making. The results show that: ① Urban growth and contraction alternate in China, and the polarization between growth and contraction is more and more obvious. ② The center of urban growth has been moving in Nanyang city. The growth structure is mainly zonal and supplemented by a dot. The belt growth structure includes the coastal urban belt and the recently formed "Beijing―Zhengzhou―Nanchang" urban belt. Point structure refers to the agglomeration growth phenomenon with inland provincial capital cities as the core. ③ The center of contraction shifted from Xingtai City to Ankang City, and the center of contraction changed obviously. The contraction structure gradually changed from scattered point contraction to "Beijing―Xi'an―Chengdu―Kunming" belted contraction structure. ④ Global financial change cycle, industrial structure transformation, national policies and other factors are the main causes of urban growth and contraction in China.

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张小东,韩昊英,罗国娜,唐拥军,刘爽.基于夜间灯光数据的中国城市增长与收缩时空动态特征分析[J].南京信息工程大学学报,,():

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  • 收稿日期:2021-09-02
  • 最后修改日期:2021-11-04
  • 录用日期:2021-11-05
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