新一線城市碳排放效率的空間關聯網絡結構及影響因素分析

摘" 要：基于15個新一線城市2006—2021年的面板數據，采用超效率SBM模型計算其碳排放效率，通過修改的引力模型構建空間關聯網絡并使用社會網絡分析法分析其結構，運用QAP回歸模型研究新一線城市空間關聯網絡的影響因素。結果表明，15個新一線城市碳排放效率的年平均值處于平穩上升的勢態;新一線城市碳排放效率表現出穩定的的網絡關聯關系，其整體網絡結構、個體網絡結構特征均呈波動上升趨勢;南京、武漢、鄭州、合肥、蘇州、杭州等城市在新一線城市碳排放效率關聯網絡中處于主導地位;對外開放程度、科技投入水平、資源稟賦結構、能源利用效率、人口分布特征、產業結構升級和空間距離關系對新一線城市碳排放效率的空間關聯具有重要影響。

關鍵詞：碳排放效率;新一線城市;超效率SBM模型;社會網絡分析法;QAP回歸

中圖分類號：X321" " " 文獻標志碼：A" " " " " 文章編號：2095-2945（2024）26-0022-06

Abstract： Based on the panel data of 15 new first-tier cities from 2006 to 2021， the super-efficiency SBM model is used to calculate their carbon emission efficiency， the modified gravity model is used to construct the spatial association network and the social network analysis method is used to analyze its structure， and the QAP regression model is used to study the influencing factors of the new first-tier urban spatial association network. The results show that the annual average value of carbon emission efficiency of 15 new first-tier cities is rising steadily， and the carbon emission efficiency of new first-tier cities shows a stable network correlation， and the characteristics of overall network structure and individual network structure all show a fluctuating upward trend. Nanjing， Wuhan， Zhengzhou， Hefei， Suzhou， Hangzhou and other cities play a leading role in the correlation network of carbon emission efficiency in new first-tier cities. The degree of opening to the outside world， the level of scientific and technological investment， resource endowment structure， energy use efficiency， population distribution characteristics， industrial structure upgrading， spatial distance relationship have an important impact on the spatial correlation of carbon emission efficiency in new first-tier cities.

Keywords： carbon emission efficiency; new first-tier cities; super-efficiency SBM model; social network analysis; QAP regression

伴隨著“雙碳”戰略的實施，我國學者對于碳排放的研究也越來越多。碳排放效率指標能兼顧環境因素與經濟因素，直觀體現勞動力、資本等投入要素與碳排放等產出要素間的關聯。碳排放效率的影響因素分析更是為實現“雙碳”目標政策而制定的“風向標”[1]。城市作為人類生產和生活的中心，其區域內的碳排放量大約占全球碳排放75%～80%，在中國更是碳排放的主體部分[2-3]。由于碳排放的流動不受城市邊界的限制，會隨著空氣流動向周邊城市擴散，亦會隨著城市間貿易往來等生產要素的流動而轉移，導致對整個區域的生態環境產生影響[4]。……