黑河流域2000年土地利用/土地覆盖数据集

中国1：10万土地利用数据是在中国科学院“八五”重大应用项目《全国资源环境遥感宏观调查与动态研究》组织了中国科学院所属19个研究所的遥感科技队伍，以卫星遥感为手段，在三年内基于Landsat MSS，TM和ETM遥感数据建立了中国1：10万土地利用影像和矢量数据库。包括的内容主要有：中国1:10万土地利用数据；中国1：10万土地利用图形数据和属性数据。
该数据由中国1：10万土地利用数据直接裁剪得到。黑河流域1：10万土地利用数据采用一个分层的土地覆盖分类系统，将全流域分为6个一级类（耕地、林地、草地、水域、城乡、工矿、居民用地和未利用土地），26个二级类；数据类型为矢量多边形，以Shape格式存储；数据投影有两种：WGS84/ALBERS；数据范围覆盖新的黑河流域边界（缺外蒙古数据）。

The 1:100,000-scale land use dataset of China was developed over three years by assembling remote sensing technical teams from 19 research institutes under the Chinese Academy of Sciences (CAS), as part of the major applied project "National Macro Remote Sensing Survey and Dynamic Research on Resources and Environment" during the Eighth Five-Year Plan period. Leveraging satellite remote sensing technologies, the dataset was built based on Landsat MSS, TM and ETM remote sensing data, and mainly consists of the 1:100,000-scale land use data of China, as well as the graphic and attribute data of China's 1:100,000-scale land use.

This 1:100,000-scale land use data of the Heihe River Basin was directly cropped from the aforementioned national land use dataset. It adopts a hierarchical land cover classification system, which divides the entire basin into 6 first-level categories: cultivated land, forest land, grassland, water area, urban, rural, industrial and mining residential land, and unused land, plus 26 second-level categories. The data is stored as vector polygons in Shapefile format, and has two projection specifications: WGS84/ALBERS. The data coverage covers the updated boundary of the Heihe River Basin, with data from Outer Mongolia missing.