“三调”成果数据流量误差原因分析研究

Analysis and Research on the Causes of Data Flow Error of the Third National Land Survey

《第三次全国国土调查实施方案》指出,“成果汇总与分析”是调查工作的主要任务之一。本文全面分析了三调与二调技术路线的异同,通过分析前后技术路线变化、作业方式变化对三调工作的影响,找出导致数据流量变化失真的技术性因素。除此以外,也提出了可能影响三调数据流量变化失真的其他非技术性因素,为准确掌握调查区域土地利用资源及地类变化情况提供技术支撑,对相关业务部门在耕地保护、土地开发利用及国土空间规划等方面开展工作有重要意义。

The implementation plan of the third national land survey requires that"summary and analysis of results"is one of the main tasks of the survey.This paper comprehensively analyzes the similarities and differences between the technical route of the third national land survey and the second national land survey,and finds out the technical factors leading to the distortion of data flow by analyzing the impact of the changes of technical route and operation mode on the third national land survey.In addition,it also puts forward other non-technical factors that may affect the distortion of the data flow change of the third national land survey,which provides technical support for accurately mastering the land use resources and land type changes in the survey area,and is of great significance to the work of relevant business departments in cultivated land protection,land development and utilization and land spatial planning.