Study On The Efficiency Of Resource Use Of Cultivated Land In Jianghan Plain

Cultivated land resources is one of the most valuable natural resources of human beings, but also the basic material for human society to survive and develop. Jianghan plain is one of China's most famous bases of commodity grain production. Its rich agricultural resources and location advantages are the agricultural economic base relied by economic development of the Yangtze River economic belt. However, because of the limited quantity of cultivated land resources, the people should select and protect resouces and optimize the ecological environment for the agricultural development of Jianghan plain. In order to tapping the potential of the existing cultivated land resources, land value-added resources ,and then to improving the resource use efficiency of cultivated land and sustainable agricultural development, the people have to exploiting rationally, using and protecting land resources, and relying on scientific and technological progress.First of all, this thesis in detail the background and the significance of the study, carding a comprehensive literature review at home and abroad, on a preliminary study to define the region, as well as the preparation of this study, the technical route; Secondly, followed by a scarcity of resources theory, externality theory, the marginal returns theoretical to find theoretical support to the causes of problems of cultivated land using efficiency. Agricultural location theory, theory of people in a harmonious and sustainable development theory to find the theoretical support to solving the problems of cultivated land using efficiency; Thirdly, investigating and analying the status of cultivated land resource utilization in Jianghan palin from four main aspects including characteristics of farmers, land-use structure, farmers with production inputs and operating income, the willing of farmers using cultivated land. The main conclusions show that farmers have the largest proportion of middle school education, in the land business and industry in general. Structural characteristics including a relatively high degree of chronology and decentralization of cultivated land in Jianghan plain. At the input and operating income of cultivated land, the plant industry accounted for 39 percent of income, which is not the most important source of revenues for the farmers, but still has a pivotal position. In relation to different types of crops, currently food crops give farmers the most sales revenue, followed by economic crops, other crops; The vast majority of farmers think that the input of chemical fertilizer and pesticide is much more compared with the output, should strengthen management of cultivated land in order to improve the efficiency of the use of cultivated, and scale of the implementation of farmland, strengthen the agricultural education and training and policy efforts of the agricultural subsidies. At the same time, through regression analysis showed that education level, the degree of fine land, fertilizer and pesticide inputs, fanning subsidies are positive correlation to the national income, but labor income is the negative correlation to the national income. Fourthly, analysing the cultivated land resources efficiency using DEA of selected 12 typical cities in Jianghan plain, and then finding that the average cultivated land efficiency of Jianghan plain can be divided into four stages of change: dropped significantly from 2001 to 2002 , increased from 2002 to 2003, a slight decline from 2003 to 2004, increased steadily from 2004 to 2007. At the same time, according to the efficiency of regional differences, Jianghan plain will be integrated into a relatively high efficiency and a relatively low efficiency regions, and analysing the regions of general lower efficiency from the point of view of technical and scale efficiency of. The study finds Xiantao city and Jiangling county are due to the lower the scale efficiency. Tianmen city and Honghu city are due to the relatively low pure technical efficiency and scale efficiency, Songzi city is mainly due to lower technical efficiency. At the basis of DEA evaluation, the thesis analysis of the effectiveness of outputs and inputs of Tianmen city, Songzi city and Honghu city. Finally, recommending policies inproving the use of cultivated land resources of the Jianghan plain from five aspects including the awareness of farmers, land management system, land-use structure, financial investment, rural education etc.