Leaf nitrogen and phosphorus stoichiometry in 80 herbaceous plant species of Songnen grassland in Northeast China
SONG Yan-Tao, ZHOU Dao-Wei, LI Qiang, WANG Ping, HUANG Ying-Xin
Chin J Plant Ecol . 2012, (3): 222 -230 .  DOI: 10.3724/SP.J.1258.2012.00222

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