Study On Cultivated Land Resource Security In China

Cultivated land is the body of land resource, and it is also the most crucial procreative material in agriculture.Cultivated land resource has very important significance for food security and socieconomic sustainable development.The countries all over the world have almost formulated corresponding cultivated land protective policy in the period of fast economic increase, so our country is. It is declared that Chinese government is carrying out the most strict policy in the world to protect cultivated land.However, cultivated land area is decreasing incessantly and ecological environment is also becoming worse and worse. Therefore we have to ponder the problem of current cultivated land protective policy,and we are how to protect our "life-line" on earth.The study on cultivated land resource security brings in this background.Cultivated land resource security is a complex research, which involves much knowledge such as economics,management,geography,ecology and so on.As a new field,there are many questions that need to be researched.The paper that is based on conception,character and basic theories of cultivated land resource security establishes appraisal and support system from quantity,quality and ecological security.The paper has nine chapters,which are divided four parts.The first part is from chapter 1 to chapter 2.Chapter 1 introduces the background,significance,method,content and innovation of the study.Chapter 2 describes the conception, connotation, character, basic theories and the differences from related conceptions.The second part is from chapter 3 to chapter 6.This part establishes appraisal system from quantity,quality and ecological security,and it analyses the differences of cultivated land resource security on time and space in China.It is indicative of the result that the change trend of quantity, quality,ecological and integrated security rises firstly then descends since the reform and opening.Looking from regional distribution,the standard of quality security in eastern provinces is higher than that in western and northern provinces,and the level of quantity and ecological security in provinces which economic develops rapidly is generally low,so is the standard of integrated security. The third part is from chapter 7 to chapter 8.This part estabishes support system based on the analysis and appraisement of current policies.It is suggested that current policies are almost quantitative protective policies,and these policies are not applied efficiently.Morever the relationship of right,obligation and benefit between different protectors is not sound enough. Chapter 8 discusses the target,protectors,mode and sustaining system of support system.The last part is chapter 9.This part summarizes the conclusion and scarcity of the study,and it points out three problems that need to be resolved firstly.