Spatiotemporal evolution characteristics and driving factors of production of major oil crops in China from 2000 to 2020
[Objective]The present paper aimed to analyze the spatial-temporal agglomeration changes and driving factors of three major oil crops in China from 2000 to 2020,namely soybean,peanut and rape,so as to provide reference for optimizing the production layout of edible oil crops.[Method]The spatiotemporal agglomeration evolution characteristics and driving factors of soybean,peanut and rape production were analyzed by using the gravity shift model,exploratory spatial data analysis,spatiotemporal geographical weighted regression model and other methods.[Result](ⅰ)The yield of soybean was the highest,followed by peanut,and the yield of rape was the lowest.The yield of soybeans showed a significant fluctuation increase,while the yield of rapeseed and peanut showed a slight fluctuation increase.Soybean pro-duction was mainly distributed in Heilongjiang,Inner Mongolia,Henan and Anhui.Peanut production was mainly distributed in Shandong,Henan and Guangdong.Rape production was mainly distributed in Sichuan,Hubei and Hunan.(ⅱ)From 2000 to 2020,the yield agglom-eration degree of three oil crops showed a weakening trend,and the high-high accumulation areas of soybean yield were in Heilongjiang and Jilin,and the low-low accumulation area was in Xinjiang;The high-high accumulation areas of peanut yield were in Shandong,Henan and Anhui,and the low-low accumulation area was in Xinjiang;The high-high accumulation areas of rape yield were in Hubei,Anhui and Jian-gxi,and the low-low accumulation area was in Inner Mongolia.The production center of soybean moved to the northwest from Tanghai county in Hebei province to Ningcheng county in Inner Mongolia.The production center of peanut was located in Henan province and was moving to-wards the northwest of Henan province;The production center of rapeseed shifted to the southwest from Nanzhang county in Hubei province to Fengjie county in Chongqing.(ⅲ)The driving factors of different oil production had different effects in different provinces.Soybean pro-duction was mainly affected by population density,fertilizer application and GDP growth rate;Peanut production was mainly affected by chemical fertilizer application,total mechanical power and irrigation area;Rapeseed production was mainly affected by population density,urbanization rate and road density.[Conclusion]The production of three main oil crops has obvious spatial agglomeration characteristics,and the influencing factors are different,which are mainly affected by social and economic factors such as chemical fertilizer application.
Main oil cropsSpatiotemporal evolutionAgglomeration characteristicsDriving factors
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