| As the foundation of the China’s national economy,agriculture plays a key role in China’s economic development.In order to achieve China’s high-quality development,we must grasp the domestic and international markets and open up the domestic and international dual circulation.Therefore,controlling the domestic and international circulation of China’s provincial agricultural economy will helps to establish a solid starting line for a new development model of a double-cycle economy and contributes to a new climate of quality economic development in China.Based on China’s inter-regional input-output table,this thesis will use the provincial industry GDP decomposition method based on Leontief inverse matrix structure decomposition to measure the domestic and international circulation scale of agriculture in 30 provinces(excluding Tibet,Hong Kong,Macao and Taiwan)in China in 2007,2010,2012,2015 and2017.On this basis,taking agricultural machinery input,labor input,sown area,fertilizer use,effective irrigation area,pesticides and agricultural film as input,and agricultural domestic and international GDP as output,the super-efficient DEA model is used to measure the international and domestic circulation efficiency of agriculture in each province,and the regional differences in internal and external circulation efficiency of agricultural economy were analyzed by Dagum Gini coefficient.In the meantime,the social network analysis method is used to explore the spatial correlation between the domestic and international circulation efficiency of agriculture in various provinces in China,and the secondary assignment procedure is then used to explore the influencing factors of the domestic and international correlation network of agricultural economy.The results show that:(1)China’s agriculture does not participate much in domestic and international circulation,and the scale of domestic and international circulation is not large,and a dual circulation pattern dominated by domestic circulation has not yet been formed.At the same time,China’s agricultural economy is mainly based on provincial circulation,and the domestic circulation degree of agricultural economy is gradually increasing,while the degree of international circulation in the agricultural economy is slowly declining.(2)The domestic and international circulation efficiency of China’s agriculture showed a fluctuating downward trend,but the domestic circulation efficiency was higher than the international circulation efficiency in five years,and the domestic and international circulation efficiency was not balanced in space,and the overall domestic and international circulation efficiency in the east was high,and the central and western regions were relatively low.(3)The overall gap of domestic circulation of China’s agricultural economy is smaller than that of the international cycle,and the overall gap of domestic circulation efficiency shows a growing trend,while the gap of international circulation efficiency gradually narrows,and the difference between regions is the main reason for the difference in international cycle efficiency,the difference in domestic circulation efficiency is mainly affected by inter-regional interaction,and the domestic and international circulation efficiency in the eastern region is quite different from the group of the other three regions.(4)There is a general spatial correlation between the domestic and international circulation efficiency of agriculture in China’s provinces,but the domestic and international circulation efficiency of agriculture between regions is unbalanced,the correlation and connectivity of agricultural domestic and international circulation efficiency in various provinces in China are constantly strengthening,the control role and influence of China’s core provinces on other provinces are fluctuating and rising,the eastern region has a strong network influence in both the agricultural domestic economic cycle efficiency and the agricultural international economic cycle efficiency,and the central and western regions play an intermediary role in the internal and external circulation.(5)The construction of spatial connections between provinces for economic development,geographical proximity,level of openness,and domestic and international circulation of agriculture in China;The greater the difference in the level of urbanization development among provinces,the stronger the spatial correlation between the development of domestic and international circulation efficiency of agriculture in each province.The differences in transportation level,industrial structure,and fiscal support for agriculture had no significant impact on the spatial network correlation changes of domestic and international circulation efficiency of China’s agricultural economy in 2015 and 2017.Relevant suggestions:(1)First of all,it is necessary to expand the scale of agricultural domestic circulation in China’s provinces,improve the domestic and international circulation efficiency of agricultural economy in various provinces,firmly grasp the two scales of quality and quantity,and stabilize the foundation of China’s agriculture.(2)Secondly,it is necessary to ensure the coordination and unification of inter-provincial agricultural domestic and international cycles,break through regional barriers,and let all provinces not be left behind in building a new agricultural development pattern.(3)The eastern region should make full use of its strengths and optimize resource allocation,and play a leading role.The central and western regions and the northeast should recognize the shortcomings of the internal and external circulation of the agricultural economy,learn industrial technology,and eliminate regional differences.(4)Comprehensively consider the influencing factors of the spatial correlation network of domestic and international circulation efficiency of China’s agriculture,and give full play to the role of the government’s macro-control and market mechanism. |
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