Differences in leaf mass per area, photosynthetic pigments and δ13C by orientation and crown position in five greening tree species
HE Chun-Xia, LI Ji-Yue, ZHANG Yan-Xiang, ZHENG Quan-Shui, XIE Bo, DING Yi-Ting
Chin J Plant Ecol . 2010, (2): 134 -143 .  DOI: 10.3773/j.issn.1005-264x.2010.02.004