黄河流域1：10万沙漠（地）分布数据集（2020年）

为了更准确了解黄河流域现代沙漠化土地时空变化规律,从国家层面收集、整编和更新现代沙漠数据集这些资料,在遥感和地理信息系统等技术支持下,参考已有沙漠化调查监测成果,以Landsat系列影像数据为主要信息源,按同一解译标准、以人机交互方式通过比较提取不同类型、不同程度沙漠化土地信息,形成黄河流域地区沙漠化自1970年代中期以来的沙漠化土地分布现状数据,并通过地面观测、调查进行精度验证和评价后建立数据库。To accurately grasp the spatiotemporal variation patterns of modern desertified lands within the Yellow River Basin, modern desert dataset materials were collected, compiled and updated at the national level. Supported by technologies including remote sensing and Geographic Information System (GIS), and referencing existing desertification survey and monitoring achievements, Landsat series satellite imagery was taken as the primary information source. Under unified interpretation standards, information on desertified lands of different types and degrees was extracted via man-machine interaction, thereby forming the current distribution dataset of desertified lands in the Yellow River Basin since the mid-1970s. Finally, accuracy verification and evaluation were conducted through field observations and surveys, and a database was established.