%0 Dataset %T 1:1 million grassland distribution data set in Heihe River Basin %J National Cryosphere Desert Data Center %I National Cryosphere Desert Data Center(www.ncdc.ac.cn) %U http://www.ncdc.ac.cn/portal/metadata/826c6110-d875-43dd-b9e8-9dc64e42cefc %W NCDC %R 10.12072/ncdc.westdc.db3860.2023 %A Wu lizong %K Grassland distribution;grazing;grassland type;grassland subtype;grassland type %X Classification principle: the formation, development and evolution of natural grassland types are restricted by ecological environment and human economic activities (including grazing, reclamation, firewood and so on). Therefore, natural conditions and social economy must be considered in grassland classification. The specific principles refer to the three principles of comprehensive factors, dominant factors and production application of land classification. Main attribute information description: maintype: primary classification; type: secondary classification, also known as group; subtype: Tertiary classification, represented by characteristic species or constructive species of vegetation.