STUDY ON LAND USE INTENSITY AND DIFFERENCE OF NEW AGRICULTURAL MANAGEMENT ENTITIES IN HILLY AND MOUNTAINOUS AREAS
Affected by the complexity of the terrain,the fragmentation of cultivated land,the weakness of agricultural facilities,and the shortage of rural agricultural labor force,the transition of traditional agriculture in hilly and mountainous regions to large-scale,intensive,mechanized and ecological modern agriculture is relatively slow and unbalanced.It relies on modern agricultural demonstration parks or modern agricultural industrial parks,fosters new agricultural management bodies,develops various forms of moderate-scale operation according to local conditions,and improves the degree of land use intensification.Based on the micro survey data of 744 new agricultural business entities,this research took the seven townships involved in the modern agricultural demonstration park in Jiangjin district of Chongqing as the case area,and used the projection pursuit model,from the four dimensions of input-output-management-sustainable,to fully consider the differences in industrial types,and analyzed the intensive degree of land use in the new main body from multiple perspectives.The results showed that:(1)The overall degree of intensive utilization of transferred land was on the low side,ranging from 0.8070 to 0.8833,and there were differences between different types of business subjects,from large to small,family farms(0.883 3),farmers'cooperatives(0.845 8),agricultural enterprises(0.818 2),and large professional households(0.807 0).It could be seen that farmer cooperatives and family farms had the best development of land use intensification,and therefore they should be the important core for promoting the development of modern agriculture in mountainous areas.(2)The binary coupling land use intensification of the main body industry showed significant differences in the land use intensification of different industry types of the same main body in all dimensions,all showing management intensification(0.4377)>sustainable intensification(0.4138)>input intensification(0.0037)>output intensification(0.0013).It could be seen that the intensive land utilization of new agricultural management subjects depended on the scientific nature of the operation and management mode.(3)The degree of intensive utilization of industrial land rangeed from 0.822 8 to 0.885 6,and there were differences between the degree of intensive utilization of land in different industries,which were vegetables(0.885 6),flowers and trees(0.880 6),oranges(0.863 9),grains and oils(0.854 8),fruit trees(0.8313),and peppercorns(0.822 8),in order from large to small.(4)In terms of influencing factors,indicators such as irrigation index,grain cultivation index,and comprehensive mechanization rate had a greater influence on the degree of intensive land use,while indicators such as average labor output value,diversification index,and road network density had a lesser influence on the degree of land intensification.In summary,due to the influence of topographic factors,the conditions of irrigation and agricultural machinery in hilly and mountainous areas are slightly worse,which greatly limits the large-scale and intensive management of mountain land.And farmers'cooperatives and family farms have the best development of land use intensity.Therefore,a three-dimensional and compound modern agricultural management system with family farms and farmers'cooperatives as the core should be constructed to effectively promote the large-scale,intensive,and modern development of land in mountainous areas.
hilly and mountainous areasland use intensitynew agricultural business entitiesindustry typeprojection pursuit model
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万方数据
