TY - Data T1 - 1:700000 land cover data set of Ningxia Hui Autonomous Region in 1990 A1 - YanChangzhen A1 - XieJiali DO - 10.12072/casnw.040.2018.db PY - 2020 DA - 2020-12-18 PB - National Cryosphere Desert Data Center AB - This is 1:700000 land cover data of Ningxia Hui Autonomous Region in Northwest China in 1990. This data adopts a hierarchical land cover classification system. The first class of the classification system is consistent with the IPCC system, with a total of 6 categories (woodland, grassland, wetland, cultivated land, artificial surface, others), and the second class uses 38 types with global unified code generated by the LCCs of FAO. DB - NCDC UR - http://www.ncdc.ac.cn/portal/metadata/823682f8-9477-4b0a-85d8-45f5e5571ecb ER -