Analysis on cultivated land pressure and influence factors in Meizhou city from 1999 to 2011

In this paper, the changes of minimum cultivated land per capita and pressure index of cultivated land from1999 to 2011 in Meizhou were researched. The results showed that minimum cultivated land per capita in Meizhou increased in 1999—2006, and decreased in the following period. Per Unit area yield of grain was the main reason for the change of minimum cultivated land per capita. Meanwhile, during the study period, the pressure index of cultivated land was bigger than 1 and appeared an upward trend, which meant an increase pressure for the cultivated land to ensure the food security.Through the correlation and principal component analysis, we found the area of paddy fields and services of agriculture,forestry, animal husbandry and fishery had strong negative correlation with the cultivated land area change. We should control pressure index of cultivated land and reduce the minimum area of per capita for better protection of the region's food security.