本文将SO2作为环境污染的代理指标,运用修正的引力模型对环境污染的空间溢出关系进行识别,并采用QAP方法从环境规制的地区差异和地理近邻效应两个维度实证考察了环境污染空间溢出的来源。研究发现:(1)我国环境污染呈现出北高南低、东高西低的空间分布格局;而且已经突破了地理上的近邻效应,呈现多线程的空间网络结构特征。(2)环境规制的地区差异和地理近邻效应对环境污染空间溢出均具有显著的正影响。从地理距离上看,地理距离在0-750千米范围内环境污染存在显著的空间溢出,而超过这一范围环境污染的空间溢出便不再显著。(3)环境规制地区差异、地理近邻效应可以解释环境污染空间溢出的18.1%,而不同的环境规制代理变量对环境污染空间溢出的影响存在差异。基于上述研究本文提出了环境污染的跨地区协同治理思路。
This paper adopts SO: as the proxy indicator of environment pollution, uses adjusted spatial spillover relationship of environment pollution, and uses QAP method to investigate its source regional disparity of environment regulation and geographical neighbor effects. Our research finds that: gravity model to identify from two dimensions, i.e. (1) Environment pollution in China has a spatial pattern of being higher in the north while lower in the south and being higher in the east while lower in the west. It has broken geographical neighbor effects, and has structural features of multithreading spatial network. (2) Both regional disparity of environment regulation and geographical neighbor effects have significant positive impact on spatial spillover of envi- ronment pollution, but it cannot be significant any more if it passes that scope. (3) Using regional disparity of environment regula- tion and geographical neighbor effects, we can explain 18.1% of spatial spillover of environment pollution, but different proxy variants have different impact on it. Based on the researches above, this paper proposes cross-regional coordination govemance ideas for environment pollution.