Acta Agrestia Sinica
THE COMPARISON OF CLASSIFICATION WITH THE DIFFERENT METHODS TO THE GRASSLAND WITH SHRUBS IN BEIJING MOUNTAINS
Li Zeng-yuan, Wang Pei, Hu Xing-zong, Liu Fu-yuan
. 1991, (1): 78 -92 .  DOI: 10.11733/j.issn.1007-0435.1991.01.009