Studies on Application of '3S' Technology in Second Land Survey of Yunnan Kaiyuan

Based on uncompirable capability in acquisitioning,storaging,updating,analyzing and applying data,the 3S technology became the core technology in processing works like land survey,which provided solid technical support for the second land survey in China.Taking the case study of the land survey in Kaiyuan Yunnan province as example,the specific application of the 3S technology were systematicaly analyzed in the land survey.