Changes in leaf nitrogen and phosphorus stoichiometry of woody plants along an altitudinal gradient in Changbai Mountain, China
YANG Lei, SUN Han, FAN Yan-Wen, HAN Wei, ZENG Ling-Bing, LIU Chao, WANG Xiang-Ping
Chin J Plan Ecolo . 2017, (12): 1228 -1238 .  DOI: 10.17521/cjpe.2017.0115