利用GF-6影像结合国土“三调”开展西部地区县域自然资源调查  

County-level natural resource survey in western China based on both GF-6 images and the third national land resource survey results

作　　者：闫涵 张毅[1] YAN Han;ZHANG Yi(School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China)

机构地区：[1]武汉大学测绘学院,武汉430079

出　　处：《自然资源遥感》2023年第2期277-286,共10页Remote Sensing for Natural Resources

基　　金：国家重点研发计划项目“西部快速发展地区村镇土地智能调查模式构建与应用示范”(编号:2020YFD1100205)资助。

摘　　要：自然资源的调查和变化监测能够为资源分类施策、保护和合理利用提供重要保证,对构建国土空间规划体系、资源管理体制改革、空间治理能力现代化以及国家的生态文明建设等工作具有重大意义。我国西部地区面积广阔,土地基础数据薄弱,地类变化检测可靠性差,因此通过较低的成本投入,高效地为大范围地区提供精准的调查成果已成为当前的迫切需求。为此,利用国产高分六号(GF-6)影像,结合第三次全国国土调查(以下简称“三调”)成果,在四川省叙永县开展西部快速发展地区村镇土地智能调查技术应用示范。通过全色与多光谱影像融合技术获得高空间分辨率与高光谱分辨率的遥感影像;利用融合后的遥感数据对叙永县进行土地资源基础调查;采用面向对象的影像分类方法、参照已有的土地“三调”成果,对遥感影像进行监督分类,并自动提取土地变化区域,形成西部快速发展地区土地高效调查新模式。调查结果可为我国西部特色产业的快速发展提供强有力的土地基础信息支撑,具有一定的推广应用价值。The survey and change monitoring of natural resources can provide an important guarantee for the implementation of systematic policies,protection,and rational utilization of resources and are of great significance for the building of the national land space planning system,the reform of the resource management system,the modernization of space governance capacity,and the construction of national ecological civilization.Western China is characterized by a vast area,insufficient basic land data,and unreliable land change monitoring.Therefore,there is an urgent need to provide efficient and accurate survey results at a low cost for such a large area.Based on the domestic high-resolution satellite(GF-6)images and the results of the third national land survey,this study carried out a demonstration of the application of the intelligent rural land survey to the areas subject to rapid development in western China in Xuyong County.To this end,remote sensing images with high spatial resolution and hyperspectral resolution were obtained through panchromatic and multispectral image fusion.Then,the fused data were used for the basic survey of land resources in Xuyong County.Subsequently,based on the object-oriented image classification and the results of the third national land survey,supervised classification of the remote sensing images was conducted,and areas with changes in land were automatically extracted,thus forming a new efficient land survey model for the areas subject to rapid development in western China.The survey results can provide strong support in terms of basic land information for the rapid development of specialty industries in western China and have a certain value in popularization and applications.

关 键 词：高分六号 自然资源调查 监督分类 变化检测 

分 类 号：P237[天文地球—摄影测量与遥感]