研发创新对碳排放强度的时空影响——以京津冀和珠三角城市群为例

Qianting Zhu, Xiyue Wang
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引用次数: 0

摘要

中国非常重视降低碳排放强度,研发创新是有效的方法,特别是在珠江三角洲(PRD)和京津冀(BTH)城市群的工业企业中。基于2010- 2022年面板数据,研究了北京和珠三角地区研发规模和创新效率对碳排放强度的时空影响。研究发现:(1)在指标计算上,北京城市与珠三角地区在研发创新方面存在差异。京津冀研发规模呈s型增长,珠三角稳步增长;珠三角地区之间的创新效率差距普遍小于北京地区。(2)在空间上,两个城市群的碳排放强度通过不同的传导路径呈现空间效应。(3)从时间上看,城市交通r&d规模对碳排放强度的影响分为两个阶段。在珠三角地区,创新效率对碳排放强度的影响呈现出外延积累的特征。本研究比较了研发创新对两个关键城市群碳排放强度的时空影响,并突出了两者的差异。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Spatio-temporal impact of R&D innovation on carbon emission intensity: A comparative analysis of Beijing-Tianjin-Hebei and Pearl River Delta urban agglomerations
China places significant emphasis on reducing carbon emission intensity, with research and development (R&D) innovation serving as an effective approach, particularly among industrial businesses in the Pearl River Delta (PRD) and the Beijing-Tianjin-Hebei (BTH) urban agglomeration. Based on 2010- 2022 panel data, this study assesses the spatio-temporal effects of the R&D scale and innovation efficiency on carbon emission intensity in BTH and PRD. The findings reveal that (1) in terms of indicator calculation, there exist differences in R&D innovation between the BTH and the PRD. The R&D scale in the BTH followed an S-shaped growth pattern, while the PRD experienced steady growth; the innovation efficiency gap among areas in the PRD is generally smaller than in the BTH. (2) In a spatial perspective, both urban agglomerations exhibit spatial effects on carbon emission intensity through different transmission pathways. (3) In a temporal perspective, the BTH's R&D scale impact on carbon emission intensity evolves in two stages. In the PRD, the effect of innovation efficiency on carbon emission intensity reveals characteristics of extended accumulation. This study compares the spatio-temporal impacts of R&D innovation on carbon emission intensity in these two crucial urban agglomerations and highlights their differences.
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