NATURAL GRASSLAND TYPES AND CLASSIFICATION SYSTEM IN QINGHAI

In order to better understand and utilization of grassland resources classify the natural grassland types.The grassland classification includes grassland classification unit and the standard of identification and the same taxonomic units in different grassland types to categorize.At present,the classification system and classification standard of the grassland resources investigation in Qinghai according to [ 1988 ] {grass} 104 standard,namely Chinese grassland classification standard and Chinese grassland classification system .In combination with the natural grassland of Qinghai and reference to the 1:100 million map of rangeland resources grassland type legend system in China ,and formed grassland classification system of Qinghai province.