中国1:10万沙漠(沙地)分布数据集

该数据集是将沙漠专题地图的图形数据建立的我国第一个1∶10万沙漠空间数据库，重点反映我国沙漠的地理分布、面积大小、沙丘的流动性与固定程度。按照系统设计要求及有关标准，将输入数据进行标准化，统一转换为各类数据输入的标准格式。建库以交付系统运行。

本项目以2000年的TM影像为信息源，在全国土地利用现状图的Coverage和2000年TM数字影像信息，进行解译、提取、修编，利用遥感与地理信息系统技术结合以1：10万比例尺专题图成图要求，对我国的沙漠、沙地和砾质戈壁进行了专题制图。1∶10万全国沙漠分布图可以使用户在从事资源与环境的研究工作时节省大量的数据录入和编辑工作。数字地图能非常方便地转化为版式地图

This dataset is China's first 1:100,000-scale desert spatial database constructed using graphic data from desert thematic maps. It primarily reflects the geographical distribution, total area, and mobility and stabilization status of sand dunes across China. Per system design specifications and relevant standards, the input data was standardized and uniformly converted into the standard format for diverse data inputs, and the database was built for system deployment and operational use.

This project adopted 2000 TM imagery as the primary information source, and carried out interpretation, extraction and revision based on the Coverage data from the national land use status map and the 2000 TM digital image information. By combining remote sensing and Geographic Information System (GIS) technologies, thematic mapping was completed for China's deserts, sandy lands and gravel-covered gobi in compliance with the mapping requirements for 1:100,000-scale thematic maps. The 1:100,000-scale national desert distribution map can greatly reduce users' workload in data entry and editing during resource and environmental research. Digital maps can be conveniently converted into formal printed layout maps.