TY - Data T1 - 1:700000 land cover data set of Gansu Province in 1990 A1 - YanChangzhen A1 - XieJiali DO - 10.12072/ncdc.NIEER.db0075.2020 PY - 2021 DA - 2021-01-05 PB - National Cryosphere Desert Data Center AB - The data set is 1:700000 land cover data of Gansu Province 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/e0048812-1fc4-4ce6-8500-240be4770a3e ER -