Abstract:

In order to explore the intensive use of arable land in Gansu Province over the past decade the driving force, the use of comprehensive analysis, cluster analysis and factor analysis, analysis of the impact of its intensive use of land space and time differences in various factors. The results showed that: (1) Cultivated land intensive use in Gansu province is increased year by year, but the level is low and improved slowly. The time characteristics is not obvious; (2) Restricted by different factors such as rainfall, terrain etc., the cultivated land intensive use of spatial characteristics is significant in Gansu province. There is more outstanding in the west and east of Yellow River. In 2008, for example the highest intensive degree city is Jiayuguan, it's up to 0.12. The lowest intensive degree city is Gannan, it's only 0.05; (3) Through the factor analysis, there are three major types of the driving forces of cultivated land intensive use in Gansu province: social economic factors, farming conditions and natural factors. Through the research，we found that the cultivated land intensive use of Gansu province mainly affected by the population, the scientific and technological level of policy and system, economic development, natural disasters restrictions. Relevant departments should from the above five aspects improve the level of cultivated land intensive use of Gansu province.