Abstract:

In order to understand the cultivated land use status of the central Shaanxi area and provide reference for rational utilization of cultivated land resources, this paper analyzed the causes and variation of the minimum area of cultivated land per capita and pressure index of cultivated land in this region during 1990 to 2009 using the pressure index of cultivated land model, then predicted the pressure index in the coming year of 2010 to 2020. The results showed that, since 1990, the minimum area of cultivated land per capita in the central Shaanxi area reduced volatility, due to the different reduced speed of the realistic cultivated land per capita and the minimum area of cultivated land per capita, the pressure index of cultivated land was fluctuation and downward trend in the last two years. Projections indicated that, the effect of science and technology investment to reduce the minimum area of cultivated land per capita would be greater than of population growth and economic development to reduce the realistic cultivated land per capita, and 2010-2020, the pressure index of cultivated land in the central Shaanxi area would decrease gradually, but always greater than 1, there would be pressure on cultivated land.