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This data is the dunhuang land use status map digitized from the drawings. This map is one of the key scientific and technological research projects of the seventh five-year plan of China: comprehensive remote sensing survey of shelterbelt in the third north, and one of the series maps of the type area of gan qingning. The information is as follows:

* chief editor: wang yimou, * deputy chief editor: feng yusun, you xianxiang, shenyuan village *, qing painting: wang jianhua, yao fafen, Yang ping

* drawing: feng yu-sun, yao fa-fen, wang jianhua, zhao yanhua, li weimin

* cartographic unit: desert laboratory, Chinese academy of sciences

* publishing house: xi 'an map publishing house

2. File format and naming

The data is stored in ESRI Shapefile format, including the following layers:

Dunhuang land use status map, rivers, roads, lakes, railways, residential land, reservoirs, desertification

3. Data fields and properties

Type code land resource class (Land_type)

12. Irrigated field

31 Woodland

311 Woodland

312 Joe irrigation mixed forest land (tree-shurb mixed)

321 Shrub land (Shrub)

Sparse shrub

33 Sparse woods

In winter and spring of 4111 Meadow grassland, Meadow grassland in the spring and winter)

4112 winter and spring of salinization meadow grassland, Saline meadow grassland in the spring and winter)

4112 winter and spring of salinization meadow grassland, Saline meadow grassland in the spring and winter)

In winter and spring of 4113 salt meadow grassland (Salty soil meadow grassland in the spring and winter)

4122 gritty desert grassland autumn grass (Gravely desert - steppe grassland in autumn and winter)

4124 mountain desert grassland winter and spring pastures (Mountainous desert - steppe grassland in winter and spring)

4134 four seasons mountain desert grassland, Mountainous desert steppe in four seasons)

Sandy desert steppe in autumn and winter

Gravely desert steppe in autumn and winter

Earthy desert steppe in four seasons

Alpine steppe in four seasons

51 Urban and town land

52 Village land

73 Reservoir and pond

74 Reed marshes

Tidal flat

81 Desert land

82 Saline-alkali land

83 Marshes

84 Sandy land

Sandy flat and dry valley

86 Bare land

87 Gobi Gobi

88 Exposed rock

Flat sandy land

Compound dunes

Undulatory sand-overlying land

Dunes and barchan chain

The sand ridge (Longitudinal dune)

Check dune