黄土丘陵半干旱区密植枣林随树龄变化的根系空间分布特征
马理辉, 吴普特, 汪有科
Spatial pattern of root systems of dense jujube plantation with jujube age in the semiarid loess hilly region of China
MA Li-Hui, WU Pu-Te, and WANG You-Ke
植物生态学报 . 2012, (4): 292 -301 .  DOI: 10.3724/SP.J.1258.2012.00292