Analysis the Dynamic Changes and the Driving Forces of Cultivated Land in Hubei Province

According to statistical and survey data from 1952 to 2003,dynamic changes of quantitative and regional differences of cultivated land in Hubei Province during the last 50 years are discussed. By using the principal component analysis, the mechanism driving forces of cultivated land change are quantificationally analyzed in this article. The result indicates that the general trend of cultivated land during the past 50 years was decreasing and regional differences of cultivated land were very notable. The mechanism driving forces of cultivated land change are mainly economic development, population growth, the present policies , adjusting the structure of agricultural production, and so