生态环境学报2011，Vol.20Issue(1)：13-18,6.
基于决策树的辽宁省北部沙漠化信息提取研究
Extraction of desertification information based on decision tree in northern Liaoning province
摘要
Abstract
To a more prominent problem of desertification in northern Liaoning Province for example, selecting the Landsat 5 TM remote sensing image data in 2007, it carries on the analysis of spectral characteristics and the mutual operation of the band through the images of the cultivated lands,the forest land, the lawn, the waters and other common surface features as well as the typical desertified land. After merging the MSAVI, NDWI as well as the SBI、 GVI、 WVI and other characteristic variables of the remote sensing image by K-T transform into the decision tree classification model,it separated hierarchically in order to achieve the high-precision extraction of desertification information. The results show that decision tree classification which is the means of the fast automatic extraction of the desertified land can eliminate the interference information when extracting surface features.关键词
沙漠化/遥感/信息提取/决策树/修改型土壤调整植被指数/归一化差异水体指数/缨帽变换Key words
desertification/ RS/ extraction of information/ decision tree/ MSAVI/ NDWI/ K-T transform分类
信息技术与安全科学引用本文复制引用
贾树海,韩志根,吕默楠,王晶,谢东祺..基于决策树的辽宁省北部沙漠化信息提取研究[J].生态环境学报,2011,20(1):13-18,6.基金项目
辽宁省国土资源厅"十五"科技攻关项目(KJ2003-03) （KJ2003-03）
