| The cultivated land is the foundation of the country’s long-term stable development,and it is the middle axis and core of farmers,rural areas,and agricultural issues.Only by rational utilization and distribution of cultivated land resources can the country realize the modernization of agriculture.With the development of the economy,the contradiction between more people and less land has intensified,which has brought great influence to political stability and economic development.Therefore,how to improve the yield and efficiency of the only arable land has become the subject of many experts and scholars,and the comprehensive benefit research of arable land resources has also emerged.The Qingyang City is located in the Loess Plateau and is a large agricultural city in the eastern part of Gansu Province.the crushing of arable land resources is severe,and the rainfall is scarce,resulting in extensive agricultural cultivation.The further development of agricultural cultivation has resulted in many rural poor people.In response to the country’s accurate poverty alleviation strategy and the idea of village revitalization proposed by the 19 th President Xi Jinping,it is necessary to find out how to use limited arable land resources,and what crops are grown to meet current needs before they can achieve poverty alleviation and increase the unit farmland area.The effective use of value,such as the cultivation of drought-tolerant special economic crops in large areas,not only meets the needs of economic development,and increases per capita net income,but also adjusts regional climate,which has a certain role in promoting and demonstrating modern agriculture.In order to provide a strong guarantee for the use of arable land in the country,it provides a basis for the evaluation of the use of arable land,and also provides a practical basis for the rational use of arable land in Qingyang City,this paper takes Qingyang City of Gansu Province in the Loess Plateau as an example,and builds a comprehensive evaluation index system for cultivated land utilization in Qingyang City from 2006 to 2015 on the basis of field surveys and the data of cultivated land use,forming a target layer.A criterion level and 17 indicator levels use principal component analysis to determine the weights of each index.Then a multi-factor comprehensive evaluation method is used to calculate the economic benefits,ecological benefits,and social benefits of farmland use,and the combined benefit evaluation value of the three components.Based on the comprehensive benefit characteristics of cultivated land utilization in Qingyang City in different periods,the coordination degree of cultivated land use system in Qingyang City was finally used to quantitatively analyze the coordination degree of cultivated land use system in Qingyang City,and the coordination degree of cultivated land in different time periods was explained.Based on the above ideas,the analysis results of this paper show that:(1)In the measurement of weights,the index community needs satisfaction and the ratio of the effective irrigated area of farmland are the largest,both being 0.086,and the per capita hectare of cultivated land has the smallest weight,which is 0.032.The rest of the agricultural mechanization degree has a weight of 0.084,the agricultural added value has a weight of 0.05,the technical efficiency has a weight of 0.08,the per capita grain yield has a weight of 0.084,the per capita agricultural GPD has a weight of 0.085,the per capita net income of farmers is 0.082,and the land reclamation rate has a weight of 0.075,the average drug weight per hectare of arable land is 0.078,the weight of cultivated land load is 0.053,and the weight of disaster index is 0.044.(2)The economic benefits,social benefits,and ecological benefits of cultivated land use in Qingyang City have also been on the rise from 2006 to 2015.The economic and social benefits have been increasing since 2006-2015,and the ecological benefits have shown a tendency of increasing growth.The economic efficiency increased from 0.047 in 2006 to 0.269 in 2015.It increased by 0.222 in 10 years.The average annual increase was 0.0222,and the average annual growth rate reached 47.23%.The social benefits rose from 0.007 in 2006 to 0.338 in 2015 and rose by 0.331 in 10 years.The average annual increase was 0.0331,and the average annual growth rate reached 28.29%.The eco-efficiency rose from 0.137 in 2006 to 0.300 in 2015.It increased by 0.173 in 10 years.The average annual increase was 0.0173,and the average annual growth rate reached 12.62%.(3)From 2006 to 2015,the overall benefits of cultivated land utilization in Qingyang City have been on an upward trend,rising from 0.100 in 2006 to 0.912 in 2015,an increase of 0.812 in 10 years,and an average annual growth rate of 82.02%.Especially in 2011-2012,the growth rate was faster,while growth in other years was flat.(4)In the study of the coordination degree of cultivated land use systems,the coordination degree of cultivated land use systems from 2006 to 2015 are basically in a state of comparison or basic coordination,except that the coordination degree of cultivated land use systems in 2007 is inconsistent.The year-by-year increase in the comprehensive benefits of farmland utilization in the city and the increase in the degree of system coordination of cultivated land utilization indicate that the city’s cultivated land use structure has gradually become scientifically rationalized.In the process of farmland use,the pursuit of high economic benefits from farmland use has gradually begun.Emphasis on the protection of the ecological environment,as well as social needs,harmonious development of human and land,and sustainable use of land.(5)Based on the above analysis results,this study proposes countermeasures for further comprehensive benefits in the use of cultivated land in Qingyang City.Strengthen the construction of agricultural infrastructure and improve the effective use of cultivated land;Strengthen the propaganda of arable land protection policies to effectively protect arable land;Reduce the use of pesticides,carry out green plant protection;Increase scientific and technological input,and strive for financial support;Improve the quality of the workforce and rationally protect arable land;Improve the monitoring and early warning system for agricultural disasters. |
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