Responses of foliar δ13C in Sabina przewalskii and Picea crassifolia to altitude and its mechanism in the Qilian Mountains, China
ZHANG Peng, WANG Gang, ZHANG Tao, CHEN Nian-Lai
Chin J Plant Ecol . 2010, (2): 125 -133 .  DOI: 10.3773/j.issn.1005-264x.2010.02.003