The dynamics of soil total nitrogen content of different vegetation types on alpine Kobersia meadow
CHEN Kaihua, YING Hengxia, LIU Junying, WANG Wei, GONG Boqi, MEI Houming, LU Peng, WANG Xiuping, WANG Wenying
Ecology and Environment . 2009, (6): 2321 -2325 .  DOI: 10.16258/j.cnki.1674-5906(2009)06-2321-05