The authors study on dynamic survey of the disasters happened in the Dongjiang reservoir Region, Zixing City, Hunan Province, using multi-period China-Brazil Earth Resource Satellite(CBERS) serial images for disaster interpretation. It shows the total landslides numbers are 105, 178, 66, 1344 and 153 in 1999, 2003, 2005, 2006 and 2008 respectively, and the total debris flows number is 13 in 2006. The research also shows that disasters mainly occurred by Bilis typhoon storm during July 14?16, 2006, with concentrated character and its density center was consistent with the storm center. Disasters’ image features can be indentified from surrounding surface features using newly images after the event, and the features may disappear gradually over time. The result shows that CBERS images can be used for monitoring the disasters’ changing process of happening-reduce-disappear over time in study area, and it can also be used for dynamic survey of geological disasters in China based on this effective case study.

During time from June 17-23 in 2005, an extraordinary storm event happened in Jian'ou city, Fujian province; it induced lots of small and medium scale shallow landslides. This paper describes the treating process to get fusion SPOT-5 images using geometric correction, spatial calibration, image enhancement, data fusion and other processing methods based on panchromatic and multi-spectral SPOT-5 images before and after the event, taking the method of comparative analysis using the fusion images and field survey to gain the key interpretation to getting the total information of 2186 landslides. The paper also gets the 92 percent of field affirming exactness using field validation method by choosing 300 interpreted landslides randomly from all of 2186 ones at last. According to the research, using fusion SPOT-5 images in the application of abstraction of small and medium scale landslide information is available.