Taking the Liudaogou watershed which is located in Shenmu County

Shaanxi Province as the exam- ple

based on the landscape quantitative calculating method and the Markov transforming matrix

the spatio-tem- poral change of landuse/cover at the different period was discussed. The steps were following: first of all

to digi- tize the three landuse maps and unified the coordinate of these maps; secondly

to chose the suitable landscape quantitative indicators and next

calculated them under the statistic software

at last

to analyze the trend of spa- tio-temporal change from different landuse/covers. The results would provide the scientific support for rational us- es of soil resources

land use plan and soil and water controlling in Loess wind-water erosion crisscross region.