自然资源学报 ›› 2017, Vol. 32 ›› Issue (12): 2100-2114.doi: 10.11849/zrzyxb.20161068

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基于夜间灯光的城市居民直接碳排放及影响因素——以中原经济区为例

赵金彩1, 钟章奇2, *, 卢鹤立3a, 吴乐英3b , 陈玉龙1   

  1. 1. 华东师范大学地理信息科学教育部重点实验室,上海 200241;
    2. 浙江财经大学经济学院,杭州 310018;
    3. 河南大学 a. 环境与规划学院, b. 黄河文明与可持续发展研究中心,河南 开封 475001
  • 收稿日期:2016-10-08 修回日期:2017-06-07 出版日期:2017-12-20 发布日期:2017-12-20
  • 通讯作者: 钟章奇(1985- ),男,湖南岳阳人,博士,讲师,研究方向为区域科学与经济政策模拟。E-mail:zzqi111@163.com
  • 作者简介:赵金彩(1989- ),女,河南延津人,博士研究生,研究方向为地理计算。E-mail:zhaojincai1989@163.com
  • 基金资助:
    河南省高校科技创新人才支持计划(16HASTIT022); 浙江省社科规划课题(18NDJC149YB); 国家自然科学基金政策研究重点支持项目(71742001)

Urban Residential CO2 Emissions and Its Determinants: A Case Study of Central Plains Economic Region

ZHAO Jin-cai1, ZHONG Zhang-qi2, LU He-li3a, WU Le-ying3b, CHEN Yu-long1   

  1. 1. Key Laboratory of Geographic Information Science, East China Normal University, Ministry of Education, Shanghai 200241, China;
    2. College of Economics, Zhejiang University of Finance & Economics, Hangzhou 310018, China;
    3. a. College of Environment and Planning, b. Key Research Institute of Yellow River Civilization and Sustainable Development, Henan University, Kaifeng 475001, China
  • Received:2016-10-08 Revised:2017-06-07 Online:2017-12-20 Published:2017-12-20
  • Supported by:
    Science & Technology Innovation Talents in Universities of Henan Province, No.16HASTIT022; Zhejiang Provincial Social Science Planning Fund Program, No.18NDJC149YB; National Natural Science Foundation of China, No.71742001

摘要: 城市居民直接能源消耗及其碳排放对区域碳减排政策的制定具有重要影响。受统计数据缺乏与研究方法的限制,当前的研究不仅较少探讨精细空间尺度上的城市居民直接碳排放,同时也缺乏在县级尺度上对人均居民直接碳排放的影响因素进行深入分析。鉴于此,论文以中原经济区为例,通过引入夜间灯光数据,利用增强型饱和校正模型估算了网格尺度上的城市居民碳排放,并采用地理加权回归模型对其影响因素进行了分析。主要研究发现:中原经济区的碳排放总体空间特征是西北高、东南低。郑州市市辖区的城市居民直接碳排放总量位于首位,而邢台县、辉县市和襄垣县的人均碳排放较高。此外,就其影响因素来看,人均GDP、碳排放强度、第二产业比重和HDD(Heating Degree Days,热度日)均表现为正效应,城镇化率为负效应,而CDD(Cooling Degree Days,冷度日)的系数有正有负。城市居民直接碳排放的影响因素分析为中原经济区制定切实可行的区域碳排放政策提供了重要的基础理论依据。

关键词: 城市居民碳排放, 夜间灯光, 中原经济区

Abstract: Urban residential energy consumption and CO2 emissions have a major impact on regional carbon reduction policy. Due to lack of data and limitation of methods, spatial characteristics of urban residential CO2 emissions and its influencing factors at county scale have rarely been discussed. Therefore, taking the Central Plains Economic Region as a case, this paper used the DMSP-OLS nighttime light imageries corrected by enhanced saturation correction model to estimate the spatial distribution of carbon emissions at the 1 km resolution and analyze its influencing factors at the county scale with geographical weighted regression model. The rationality of our method was confirmed in the process of estimating carbon emissions. The linear regression model between the estimated CO2 emissions and the statistical CO2 emissions of urban residents with R2 of 0.837 1 demonstrated that the inversion model based on the nighttime light imageries has strong feasibility and suitability. Based on the carbon emissions of urban residents at 1 km resolution, we can calculate carbon emissions across administrative boundaries. In terms of spatial characteristics, CO2 emissions in the northwest Central Plains Economic Region were significantly higher than those in the southeast. Moreover, Zhengzhou District held the first place of CO2 emissions with total amount of 2.47 ×106 t, accounting for 6.58% of total CO2 emissions. However, Xingtai, Huixian and Xiangyuan were the regions with high CO2 emissions per capita, and these regions with higher carbon emissions per capita should be paid more attention. With respect to influencing factors, per capita GDP, carbon intensity, proportion of secondary industry and HDD (Heating Degree Days) all have the positive effects on urban residential carbon emissions at the county scale. However, urbanization rate presented a negative effect. Furthermore, it's important to note that CDD (Cooling Degree Days) has positive impact on urban residential carbon emissions in some cities while has negative impact in other cities. However, the maximum coefficient of its negative impact was 0.046 6, which could be ignored compared with the coefficient of positive impact. Therefore, CDD would be regarded as a positive influencing factor as a whole. Overall, the analysis of influencing factors in this paper provides an important theory basis for policy-makers to carry out more feasible policy on regional carbon emissions in the Central Plains Economic Region.

Key words: Central Plains Economic Region, CO2 emissions, nighttime light, urban resident

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