The Evolution Mechanism of Wet Markets in Megacities:An Empirical Analysis of Guangzhou
Based on spatial data of Guangzhou's wet markets,this study employs methods such as kernel density estimation,Ripley's K function,and negative binomial regression to thoroughly analyze the spatial evolution characteristics and influencing factors of these markets from 2005 to 2020. The results reveal that:(1) The spatial evolution of wet markets in Guangzhou shows a trend of gradual expansion from the old urban areas to the pe-ripheral suburbs,aligning closely with the city's development direction towards the east and south. (2) Different types of wet markets display distinct spatial clustering characteristics. Farmers'markets are primarily concentrat-ed in the western part of the central urban area,arranged around large markets such as Jiangnan Fruit and Vegeta-ble Market and Huangsha Aquatic Products Market. Fresh supermarkets exhibit a clustered pattern based on pop-ulation density,while retail vegetable stores are distributed along the city's main roads,forming a"roadside mar-ket"pattern. (3) The spatial distribution of wet markets is a result of socio-economic factors,location conditions,land use,and market environment. Specifically,the distribution of farmers'markets is most significantly affected by the presence of similar agricultural product markets and commercial land prices. The distribution of fresh food supermarkets is primarily influenced by the population size and the number of restaurants,while that of retail vegetable stores is most impacted by population size,commercial land area,the number of dining establishments,and the availability of public service facilities.
wet marketfresh supermarketretail vegetable storespatial evolutionpublic space