喀斯特石漠化遥感信息增强与监测技术

RS Monitoring Technology in Karst Rocky Desertification

应用遥感动态监测的基本理论和方法,从遥感数据选择、数据预处理、石漠化演变图像提取、石漠化变化信息的分类分级、石漠化变化信息自动提取等方面入手,总结了利用改进的EVI提取石漠化信息,二次图像分类遥感动态监测的技术路线与方法.野外调查验证表明,该技术方法实用、监测结果准确.

The karst rocky desertification is an eco-geological problem in South China, concerning how to monitor its changing precisely, rapidly and economically and to restore it and make a study on its evolution. Based on primary theory and methods of RS dynamic monitoring technology, a general technical way is tested by choosing RS image, data preparation, obtaining the changing image of rock desertification, and classifying it. The technique of second time classification and extracting information of rocky desertification by mended EVI is practical and the monitoring result is precise through the study on test area and the application of large scale and random validating.