Study on Spatial Pattern Evolution and Driving Factors of Photovoltaic Industry in Yunnan Province
The photovoltaic industry is a key industry in Yunnan Province,which is not only a benchmark for improving the quality of the industrial system and promoting the optimization of the industrial structure,but also one of the important paths to realize the"green energy brand"and"double carbon"strategy.Vector data of PV enterprises in 2011,2016 and 2021 were used to study the spatial pattern evolution and driving factors of PV industry in Yunnan Province by standard deviation ellipse,kernel density analysis and colocation quotient.The results show that the photovoltaic industry in Yunnan Province is in the stage of rapid development and shows an"east-west"agglomeration trend,and the development pattern has changed from"Dehong-Kunming"dual core to"Kunming as the core,Qujing-Chuxiong dual sub-core".Technology agglomeration and market environment are the main factors to promote the development of photovoltaic industry and this factor has a more significant impact on the distribution of middle and downstream enterprises.The location correlation between photovoltaic enterprises in Yunnan Province is weak,and the midstream enterprises are the main location carriers of the photovoltaic industry layout in Kunming City.Therefore,it is recommended to make long-term planning for industrial layout,provide"personalized"policy support for local enterprises,strengthen the protection of intellectual property rights and respect the law of location layout of the photovoltaic industry.