TY - Data T1 - Primary road network dataset of the Heihe river basin A1 - Cold and Arid Region Scientific Data Center DO - 10.12072/ncdc.westdc.db3728.2023 PY - 2020 DA - 2020-12-30 PB - National Cryosphere Desert Data Center AB - Data overview: This set of data mainly includes the spatial distribution of main roads in the Heihe River Basin, and the attributes include road classification and road coding. The data base year is 2010. Data content description: the data mainly has two important attributes, namely, road classification and road code. The road classification is divided into national road, provincial road, county road, township road and special road. The road code is uniformly defined according to the road grade code of the transportation department DB - NCDC UR - http://www.ncdc.ac.cn/portal/metadata/2426dddb-8edb-4280-b84b-ee76e92758f3 ER -