%0 Dataset
%T Map of developmental degree of desertification in DAQIN TALA
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/41dedd13-fb05-4ae7-881e-e6363a23743f
%W NCDC
%R 10.12072/ncdc.westdc.db3825.2023
%A Wu lizong
%K Disert;Desertification
%X 1、 The data is digitized from the map of development degree of desertification in daqintera (1958). The specific information of the map is as follows:Editor in chief: Zhu Zhenda, Qiu XingminEditor: Wang YimouDrawn by: Feng Yusun, Yao Fafen, Wu Wei, Wang Jianhua, Wang ZhoulongCartographer: prepared by Desert Research Office of Chinese Academy of SciencesPublishing House: Xi'an map publishing house, unified Book No.: 12461.26Scale: 1:1000002、 Data is stored in ESRI ShapeFile format, including the following layers:Desertification development degree map (1974): desertification1974.dbf, desertification1974.shp, desertification1974.shx, desertification1974.prjDouble river: river_double.dbf, river_double.shp, river_double.shx, river_double.prjSingle river: River ﹣ single.dbf, river ﹣ single.shp, river ﹣ single.shx, river ﹣ single.prjRoads: road.dbf, road.shp, road.shx, road.prjLakes: lake.dbf, lake.shp, lake.shx, lake.prjStreet: stree.dbf, stree.shp, stree.shx, stree.prjRailway: railway.dbf, railway.shp, railway.shx, railway.prjForest belt: tree ﹣ networks.dbf, tree ﹣ networks.shp, tree ﹣ networks.shx, tree ﹣ networks.prjResidential areas: residential.dbf, residential.shp, residential.shx, residential.prjFigure Outline: map ﹣ margin.dbf, map ﹣ margin.shp, map ﹣ margin.shx, map ﹣ margin.prj1. Attribute fields and coding attributes of desertification development degree map: (1) desertification degree (type): semi shifting sand land, shapes of sand, grassland, woodland, w'density and farmland(2) Sand forms: barchan dunes, flat sand land, undeveloped sand land, and cultivated dunes(3) Grassland: Grassland(4) Woodland: Woodland(5) W'density: sparse woodlot(6) Farmland: dry farming and abandoned farmland, irrigated fields2. Projection information:Angular Unit: Degree (0.017453292519943295)Prime Meridian: Greenwich (0.000000000000000000)Datum: D_Beijing_1954Spheroid: Krasovsky_1940Semimajor Axis: 6378245.000000000000000000Semiminor Axis: 6356863.018773047300000000Inverse Flatteni