According to landuse statistic data from 1999 to 2007

the dynamic evolution of land use structure of Liangping County of Chongqing Municipality is exemplified based on information entropy principle and Markov transfer matrix model. Results show that information entropy H of Liang ping County' s landuse structure has undergo ne three stages

that is

1999-2002 continual rising stage

2002-2003 sharply decreasing stage

and 2003-2007 fluctuating stage.nChange in the degree of balance and dominance is similar to information entropy. Land types have been mainly transferred from cultivated land to woodland and lands for traffic

residential set tlements

and industry mining.The theoretical trend values of LUCC in the study area are analyzed by RBF neural network model. The trend that cultivated land is shifted into lands for traffic

residential settlements

and industry mining is the most dominant .From this tendency

cultivated land may be continuously reduced in the future and the contradiction between cultivated land conservation and the enlargement of urban building land becomes more serious. It is suggested to give energetic supports to land exploitation and reorganization

especially rural residential areas' combination and reorganization. Simultaneously

the works on excavating reserved constructional land positively and making landuse effective and intensive should be strengthened.