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Land as a carrier of the development of the national economy, its security relating to food security, social security, ecological security, regional land resources security, not only conducive to the implementation of a national land conservation policies also provide realistic reference for the regional eco-friendly land use patterns. The papers on the basis of broad access to domestic and foreign land resources security and early warning literature, Baoji City land resources security issues as the research object, using the basis of the overall plan revision data and survey data based on the land in Baoji City, index system factor analysis, ecological footprint method and system analysis, respectively, from the two perspectives of integrated land carrying capacity and ecological footprint for qualitative and quantitative evaluation of the land resource security for the protection of land resources in order to understand and grasp the extent and trends of land resources security and to provide a scientific basis for planning and management of land resources. The same time, based on the analysis and evaluation of land resources security degree of Baoji City, Baoji City land resources security warning do research and protection countermeasures for the current land use issues. This paper research achievements and innovations are as follows: (1) 1997-2007, Baoji City of arable land has been in reducing net decrease 44279hm2 arable land, and different times of arable land average annual decline rate volatility differences larger ,2002-2007 farmland average annual decline rate is 1.34 times the average annual decline rate of farmland from 1997 to 2002, arable land resources security situation is more serious. In addition, the land use degree in Baoji City in 2007 Composite Index (Lj) 219.8 reached only about half of the development limit of the degree of development of land resources and development efforts. (2) build the index system of comprehensive carrying capacity of the land resources from pressure class and pressure class, using factor analysis estimates Baoji City in 2000, 2002, 2005 and 2007 comprehensive land loading and come 2000, Baoji City of land resources in the weak security status, indicating that the scale and intensity of human activities on land resources hosted within; 2002, 2005 and 2007 in an unsafe condition, indicating that the scale and intensity of human activity is beyond the land resources capable of carrying range, land at the overloaded state. (3) the use of the ecological footprint method to evaluate the security posture of Baoji City Land Resources, draw: 1997-2007, Baoji City land resources per capita ecological footprint demand on the rise, the ecological footprint per capita supply has shown a downward trend, land ecological security is in a state of insecurity; 2007, the per capita ecological footprint deficit 0.109667hm2, that Baoji City, consumer demand is far greater than the regenerative capacity of the natural system; simultaneously analyze the projections indicate that the next 14 years Baoji City land resources security pressure index decreased after increasing changes in the supply trend, in 2010, the land resources in the state of insecurity in the criticality safety status in 2020. (4) Baoji City land resources security, real-time early warning. Dynamic Balance of Farmland warning model coefficient method to determine the target warning warning degree, the estimates of the value of the different periods of Baoji City land resources security warning. Specifically, 1998,2001,2002,2004,2007 and the Baoji City arable land resources security warning degree in 2008 in police level; 1999, 2000 and 2005, arable land resources security police in Baoji City is judged giant police; 2006 police degree determined to be a heavy police. Addition, the paper according to the security posture of Baoji City land resources, the focus from the development of the different main functional areas of land protection strategies, and strengthen the awareness of protection of land resources, and improve the legal system of land protection, innovative basic farmland protection mechanism and increase the overall production capacity of the land proposed land resources Conservation Strategies.
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