Extraction and Monitoring of Karst Rock Desertification Information

摘要

Karst Rock desertification is one of the ecological geology problems in southwest of China. The investigation of thisproblem can provide scientific evidence for its evolution analysis and post arrangement, so monitoring the dynamicchange of desertification using quick, precise and economic method is the most important task. In this paper, thefundamental remote sensing dynamic monitoring theory and method is applied, and it mainly discussed these aspectsincluding remote sensing data choice, data preprocessing, extraction of rock desertification change information,classification of rock desertification information, etc. It summed up the technologic route and method of the Karst rockdesertification monitoring using remote sensing technology. Based on the research of testing area and random sampleinvestigation, it is indicated that the result using this method is precise and satisfying.