DISTRIBUTION OF ELEMENTS ALONG THE LENGTH OF DIFFERENT-AGED NEEDLES OF PINUS MASSONIANA AT DINGHUSHAN
KUANG Yuan-Wen, WEN Da-Zhi, ZHOU Guo-Yi, ZHANG De-Qiang
Chin J Plant Ecol . 2006, (1): 33 -39 .  DOI: 10.17521/cjpe.2006.0005