中国地理标志水产品时空分布格局及演化研究OA

From 2008 to 2022,based on the panel data of 31 provinces(cities)in China,the spatial distribution characteristics and evolution trend of geographic indications aquatic products in China were analyzed in depth by using statistical methods combined with GIS techniques,including kernel density estimation,spatial visualization and standard deviation ellipses.The results showed that(1)China's geographical indication aquatic products showed a positive W-type characteristic of narrowing firstly,then increasing,and lastly narrowing and increasing.And all of them showed a slight bimodal phenomenon,and indicated that the polarization of the quantity level of aquatic products between regions had been intensified;(2)China's geographical indications of aquatic products in the country showed a clear west-low-east high,south-low-north high trend,with a significant agglomeration phenomenon,and the distribution has an unevenness.(3)The standard deviation ellipse of the national geographical indication aquatic products tended to the southeast coastal area as a whole,and there was an obvious clustering phenomenon.Based on this,the paper suggested to increase the integration and development of industry,and optimize the regional layout and operation mode,and deepen the structural reform of the supply side of fishery,and increase the publicity,and enhance the popularity and influence of geographical indication aquatic products,and strengthen the talent training and the construction of scientific and technological team to promote the high-quality development of geographical indication aquatic products.