地理国情普查外业调查与核查探讨

Discussion on Field Investigation and Verification for National Geographic Conditions Census

地理国情普查主要是查清我国地形地貌、地表覆盖等自然和人文地理要素的现状和空间分布情况,建立普查成果数据库,为开展常态化的国情监测奠定基础。正确理解吉林省地理国情普查技术设计和作业指导书,以及国情普查的内容与指标,进行外业核查与遥感影像解译样本采集工作,为最终形成地理国情要素数据、地表覆盖分类数据和遥感影像解译样本数据库奠定基础。

National geographic conditions is mainly used to figure out the status and spatial distribution of natural and human factors, such as topography and land cover Based on the census results, database is established that lays the foundation for the normalization of national conditions. First, correctly understanding of Jilin Province national geographic conditions census technical design, work in- structions, and contents and indices of national conditions census is the basic condition of national geographic conditions census. Besides, field investigation and collecting of interpreting samples of remotely sensed imagery is used as a measurement tool. Finally, it provides basis for the element data of national geographic conditions, classification results of land cover types and remotely sensed im- agery interpretation sample database.