地理科学 ›› 2019, Vol. 39 ›› Issue (7): 1147-1154.doi: 10.13249/j.cnki.sgs.2019.07.013

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紧凑城市空间结构对城市能耗的作用机制——基于江苏省的实证研究

韩刚1,袁家冬2,张轩1(),冯学良1   

  1. 1. 淮阴工学院建筑工程学院,江苏 淮安 223001
    2. 东北师范大学地理科学学院,吉林 长春 130024
  • 收稿日期:2018-10-09 修回日期:2018-12-05 出版日期:2019-07-10 发布日期:2019-07-10
  • 通讯作者: 张轩 E-mail:zxpolis@126.com
  • 作者简介:韩刚(1989-),男,甘肃白银人,博士,讲师,研究方向为大都市空间结构。E-mail: xiaosongshanzhu@163.com
  • 基金资助:
    国家自然科学基金项目(40371040);江苏省社会科学基金项目(18EYC003);吉林省教育厅“十三五”科学技术研究规划项目资助(JJKH20170918KJ)

The Mechanism of Compact City Spatial Structure on Energy Consumption: An Empirical Research Based on Jiangsu Province

Han Gang1,Yuan Jiadong2,Zhang Xuan1(),Feng Xueliang1   

  1. 1. Faculty of Architecture and Civil Engineering, Huaiyin Institute of Technology, Huaian 223001, Jiangsu, China
    2. College of Geographical Science, Northeast Normal University, Changchun 130024, Jilin, China
  • Received:2018-10-09 Revised:2018-12-05 Online:2019-07-10 Published:2019-07-10
  • Contact: Zhang Xuan E-mail:zxpolis@126.com
  • Supported by:
    National Natural Science Foundation of China(40371040);Social Science Fund of Jiangsu Province of China(18EYC003);‘13th Five-Year’Science and Technology Project in Jilin Province Department of Education(JJKH20170918KJ)

摘要:

以江苏省为研究对象,选取2007~2016年数据资料,探讨城市紧凑发展与能耗间的作用关系。首先计算城市紧凑度和能耗数值,紧凑度通过构建评价指标体系测算,包括土地利用、经济、人口、基础设施、公共服务5个一级指标以及12个二级指标,城市能源消耗以全社会用电总量、天然气供气总量、液化石油气供气总量折算标准煤方式获取。其次,将江苏省城市紧凑度和能耗数值进行空间可视化,观察两者在4个时间节点,地域和时空上的演变。最后,运用灰色关联分析法和计量经济学中的普通最小二乘法及一阶差分广义矩估计,对城市紧凑度与能耗的相关关系、作用机制进行定量研究。通过研究发现,江苏省城市紧凑度和能耗皆存在空间上的集聚分布特征,且两者具有较强的相关性,紧凑度的提升对能耗有显著的抑制作用,但这种作用表现出较为典型的时效性和滞后性,城市空间结构调整所带来的效用增长会缓慢作用于能源利用结构。

关键词: 紧凑城市, 能源消耗, 空间结构, 江苏省

Abstract:

The concept of compact city provides an efficient urban development model with a fine fabric and organic connection between urban spatial structures. It achieves intensive land utilization pattern by controlling the urban sprawl with urban growth boundary, as well as the linked communities by the advanced public transportation system. In addition, as one of the most recommendable urban development ways advocated by sustainability science, the greatest value of compact city is considered to reduce energy consumption significantly in the process of urban economic and social development. Taking Jiangsu Province as an example, this study selects mass of statistical data from 2007 to 2016, to explore whether a compact city can contribute to reducing power consumption and emission, and testing the quantitative relationship, how does compact urban structure affect energy consumption as well its force direction. Firstly, the urban compactness and energy consumption value are calculated. An assessment index system with five primary indicators (land utilization, economy, population, infrastructure, and public services) and twelve secondary indicators is built, and the urban compactness is measured by the value of these indicators. It should be noted that, subject to the limitation of the complexity of urban energy consumption statistics in China, energy consumption value is obtained by converting the original row data of the whole society’s electricity, total natural gas supply and total liquefied petroleum gas (LPG) supply into the standard coal then adding them together. Such processing method can greatly reduce the error of results. Secondly, the representation of urban compactness and energy consumption value are visualized spatially by prefecture-level city, and then the temporal and spatial evolution of these two variables are observed at four time points. Finally, the correlation between urban compactness and energy consumption is investigated by employing the grey relational analysis method, and the interactive mechanism of them is quantified by using the ordinary least squares method and the first-order difference generalized moment estimation in econometrics. This study finds that both urban compactness and energy consumption in Jiangsu Province have significant characteristics of spatial concentration, and the northern and southern parts of Jiangsu are significantly different by taking the Yangtze River as the boundary. Moreover, urban compactness and energy consumption are strongly correlated. The increase in compactness promotes its inhibitory effect on energy consumption, however, this effect shows typical timeliness and hysteresis. The utility of adjusting urban spatial structure will conduce to the changes of energy utilization structure gradually. Clearly, the results show that compact city plays an important role in the transformation process in terms of urban spatial development from incremental expansion to inventory optimization in the eastern China. Besides, from the perspective of practical application in spatial planning, compact city enhances the integration of production, living and ecological spaces in urban area, and promotes the sustainable and coordinated development.

Key words: compact city, energy consumption, spatial structure, Jiangsu Province

中图分类号: 

  • K928.5