Analysis Of The Spatial And Temporal Evolution And Driving Mechanisms Of Agricultural Multifunctionality In Henan Province

It is an objective fact that agriculture itself has multiple functions.For a long time,the production function of agriculture has been overemphasized while the multifunctionality of agriculture has not been emphasized.With the development of China’s social economy,the structural problems of agricultural development have become prominent,and the extreme emphasis on the production function of agriculture is no longer suitable for China’s realistic needs,and the multifunctionality of agriculture plays an important role in meeting people’s diverse consumption needs,protecting the ecological environment,promoting agricultural restructuring and implementing the rural revitalization strategy.This paper takes Henan Province,a large agricultural province,as the research area,and uses factor analysis to select indicators with high contribution rate to construct the evaluation index system of agricultural multifunctionality in Henan Province,uses entropy value method,spatial autocorrelation and ordered sample clustering to explore the spatial and temporal evolution characteristics of agricultural multifunctionality in Henan counties,the types of functions and the relationship between functions,and analyzes the evolution of agricultural multifunctionality from both natural environment and socio-economic aspects.The spatio-temporal geographically weighted regression model is used to analyze the changes in the spatial pattern of agricultural multifunctional evolution,and finally,corresponding optimization strategies are proposed according to the functional types of county agriculture.Through the research of this paper,it is found that.(1)the agricultural product supply function and economic development function of Henan agriculture gradually increased during the study period,while the social security function and ecological service function both declined to different degrees,and the comprehensive agricultural function showed a gradually increasing trend.In terms of spatial changes,the counties with high value of agricultural product supply function are mainly distributed in the north,east and south of Henan,the areas with high value of economic development function are mainly distributed in the east and south of Henan,the counties with high value of social security function are mainly distributed in the west,south and east of Henan,and the counties with high value of ecological service function are concentrated in the west and south of Henan in the mountainous and hilly areas;the counties with high value of comprehensive agricultural function are mainly in the east and south of Henan in the plain Hilly areas,and shows a trend of gradually concentrating to south and west Henan.(2)According to the method of superior function identification,the types of agricultural multifunction in Henan Province are divided into strong integrated agricultural,economic,social security,ecological,agricultural economic,agricultural social security,agricultural ecological,economic social security,economic ecological,social security ecological,agricultural economic social security,agricultural economic ecological,agricultural social security ecological,economic social security ecological and weak integrated.(3)there are significant correlations among agricultural functions,there are significant synergies between agricultural supply functions economic development functions,agricultural supply functions and social security functions have changed from mutually compatible to synergistic;agricultural supply functions and ecological service functions have maintained negative correlations,economic development functions and social security functions have strong synergies,economic development functions and ecological service functions have significant correlation,and there is synergy between social security function and ecological service function.In terms of spatial pattern,the distribution of high synergistic area between agricultural product supply function and economic development function is concentrated from East Henan to North Henan and South Henan,the high synergistic area between agricultural product supply function and social function is shifted to Xinxiang and Xinyang,the high synergistic counties between ecological service function and agricultural product supply function are concentrated in Zhumadian and Luoyang,the high synergistic area between economic function and social security function is shifted from Kaifeng and Zhumadian to Xinyang,Sanmenxia and Nanyang,etc.The counties with high synergy between economic development function and ecological service function are mainly concentrated in the counties under the jurisdiction of Luoyang,Xinyang and Zhumadian,etc.The areas with high synergy between social security function and ecological service function are mainly distributed in the counties under the jurisdiction of Sanmenxia,Nanyang,Luoyang and Xinyang.(4)the spatio-temporal evolution of agricultural functions is driven by both natural and socio-economic factors,and the driving factors are spatially heterogeneous,with agricultural product supply functions and driven by natural factors such as elevation and temperature,and ecological service functions driven by factors such as precipitation,temperature,and per capita net income of rural residents,etc.The proportion of secondary industry,urbanization rate,and net income of rural residents have a significant role in driving the economic development functions of agriculture and social security functions of agriculture.In terms of the spatial heterogeneity of the driving factors,the natural environmental factors are more stable in spatial distribution while the socio-economic factors are more variable in spatial distribution.(5)According to the different types of agricultural functions in counties,the agricultural function zoning of Henan Province is divided into single function advantageous area,double function advantageous area,triple function advantageous area and comprehensive function area,so the differentiated optimization strategy is proposed according to the function zoning according to local conditions.