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运用空间联立方程模型考察了人口集聚、工业集聚、经济集聚与雾霾污染的相互作用机制。结果显示:雾霾污染存在显著的空间溢出效应;工业集聚和雾霾污染呈正相关关系,人口集聚、经济集聚和雾霾污染之间呈负相关关系;我国经济集聚和雾霾污染之间已进入倒“U”型曲线的下降阶段;雾霾污染会对当地的经济产生挤出效应,从而使周边地区从中受益。为了考察城镇化率的差异对集聚和雾霾污染作用机制的影响,采用门槛模型对此进行了研究,结果显示:随着城镇化率的提高,工业集聚和雾霾污染之间呈倒“U”型关系,当城镇化率大于68.60%时,工业集聚和雾霾污染之间呈负相关关系;随着城镇化率的提高,经济集聚和雾霾污染之间的负相关关系越来越显著。
The space simultaneous equations model was used to investigate the interaction mechanism between population concentration, industrial agglomeration, economic agglomeration and smog pollution. The results show that there is a significant spillover effect of haze pollution; there is a positive correlation between industrial agglomeration and haze pollution; population concentration, economic agglomeration and haze pollution have a negative correlation; between economic agglomeration and haze pollution in our country have entered Falling “U” curve of the decline phase; haze pollution will have a crowding-out effect on the local economy, so that the surrounding areas benefit from it. In order to investigate the impact of urbanization rate differences on the mechanism of agglomeration and smog pollution, a threshold model was used to study the results. The results show that with the increase of urbanization rate, industrial agglomeration and smog pollution show " When the urbanization rate is more than 68.60%, there is a negative correlation between industrial agglomeration and smog pollution. With the increase of urbanization rate, the negative correlation between economic agglomeration and smog pollution is more and more The more significant.