Research of Land Use Change Based on CA-Markov Model in Youyang County of Chongqing City

To reveal the county land use changes，as Youyang county of study area，it was been simulated that land use situation in 2020 basis on the CA-Markov model to Youyang county，and present situation and influencing factors of land use in the study area were analyzed in 2014.Results showed that influencing factors of land use were included both natural and human factors.Cultivated land area would be downward trend in the study area in 2020，and woodland area would be increasing，but grassland and water area would be not change obvious，the unused land area would be decreased slightly.In the space，study area of city scale would be development in northwest-southeast direction.Increase of construction land was due to towns as the center to expanding urbanization construction covers an area of around.