Tianjin Cultivated Land Quantity Change And Its Driving Force

Land is the carrier of human activities, is the material basis of human survival, an important type of land use is arable land. The arable land is the basic means of production can not be replaced in the agricultural production activities, an important guarantee of human sources of food and clothing and the development of life, so the key to ensuring food security is to maintain a certain quantity and quality of arable land. However, with economic development, population growth, accelerated the level of industrialization and urbanization, agricultural structural adjustment and other factors on arable land resources, the overall trend of the change of China’s arable land resources dwindling number, and the continuing decline of the people and land conflicts have become increasingly prominent. Therefore, the analysis of trends in the number of cultivated land resources change, and to study the driving mechanism is conducive to the rational use of arable land resources, slow down the declining amount of cultivated land, farmland protection and coordination of regional economic development policy for the development of the protection of arable land regulations has important significance. Protection and effective utilization of arable land to protect Tianjin food security and improved living standards are very important and urgent problem, at this stage Tianjin sustainable development strategy and economic development in strategic areas of research focus.This article draw on related research, theory and sustainable development of arable land resources as a guide, the study of Tianjin, the study period1995-2010, the method of combining research methods for qualitative analysis and quantitative demonstration. Firstly, qualitative analysis of the overall trend of the number of changes of arable land resources, Tianjin in1995to2010, then combined with the Tianjin Municipality, the socio-economic statistics and data, using principal component analysis to demonstrate the multiple linear regression analysis assisted feasibility studies, quantitative study of human driving factors that affect the number of changes of arable land resources, Tianjin, come to the1995-2010Tianjin amount of cultivated land change and its driving mechanism, and proposed measures and measures of protection and rational use of arable land.This thesis is divided into four parts:The first part includes the first chapter and second chapter introduces the topics of the theoretical basis of the study area to natural conditions and socio-economic conditions.The second part of Chapter Ⅲ describes the current situation and problems of land use of Tianjin, and analyzed the amount of cultivated land changes in rate and amount of cultivated land, the rate of change, summed up the number of cultivated land resources in Tianjin continuous downward trend.The third part of Chapter Ⅳ, the use of qualitative and quantitative analysis of a combination of methods to draw population growth, economic development, technology and policy is the main factor to affect the amount of cultivated land changes in Tianjin.The fourth part consists of Chapters Ⅴ and Ⅵ, a summary of the results, Tianjin farmland number of drivers of change, the protection and rational development and utilization of arable land countermeasures, and summary concluded.