The data is digitized from the drawing, the desertification development degree map of Daqinggou area in Horqin grassland (1981). The specific information of the map is as follows:

Editor in chief: Zhu Zhenda

Editor: Feng Yusun

Drawn by: Feng Yusun, Yao Fafen, Wang Jianhua, Zhao Yanhua, Li Weimin

Cartographer: prepared by Desert Research Office of Chinese Academy of Sciences

Press: none yet

Scale: 1:50000

Publication time: no

Legends: gully dense forest, sparse woods, brush, artificial woodland, nursery and vegetable garden, grass land, dry farmland, abandoned farmland, marsh land, shifting sand dunes, semi shifting sand dunes Sand dunes, semi fixed sand dunes, fixed sand dunes, water area, rice, residential, highway

2. File format and naming

Data is stored in ESRI ShapeFile format, including the following layers:

Desertification map of Daqinggou area, Horqin grassland, rivers, swamps, roads, lakes, and residential areas

3. Data desertification attribute field:

Type, shapes, grassland, woodland, w'density, farmland

2. Projection information:

Angular Unit: Degree (0.017453292519943295)

Prime Meridian: Greenwich (0.000000000000000000)

Datum: D_Beijing_1954

Spheroid: Krasovsky_1940

Semimajor Axis: 6378245.000000000000000000

Semiminor Axis: 6356863.018773047300000000

Inverse Flattening: 298.300000000000010000