Leaf nitrogen resorption proficiency of seven shrubs across timberline ecotones in the Sergymla Mountains, Southeast Xizang, China
ZHANG Lin, YAN En-Rong, WEI Hai-Xia, LIU Xin-Sheng, SHEN Wei
Chin J Plant Ecol . 2014, (12): 1325 -1332 .  DOI: 10.3724/SP.J.1258.2014.00127