Abstract:

By analyzing the distribution of DMSP/OLS static average light data of the DN value from 1994 to 2009 year by year,the spatial pattern of distribution of Jiangxi Province was studied,and the data quality was evaluated.At the same time,considering the actual spatial pattern of distribution of data needs and data quality,1994,2000,2005 and 2009 four years were selected on behalf of the test samples.The results showed that from 1994 to 2009 the total value of urban construction land in Jiangxi Province and the statistical data existed some fluctuations and the overall expansion trend.The growth rate of urbanization during 2000-2005 was higher 2953% than that during 1994-2000,the growth rate during 2005-2009 was higher 43.57% than that during1994-2000.This indicated that the development of urbanization in Jiangxi Province was gradually speeding up and showed the accelerating trend of the development.Landscape index analysis showed that in the expansion process of urbanization in Jiangxi Province,the aggregation between the towns and the mutual influences got higher when the area increased.In this study,more and more complex shape of urbanization was found.Besides,the close links between cities and towns increased,the degree of fragmentation gradually reduced,urban patch shape changes gradually increased,and degree of disorder development increased.Finally,active development of mediumsized cities,intensive development of megacities,the steady expansion of the development scale of the small towns were proposed,according to the development status of urban spatial pattern for Jiangxi Province