川西亚高山两种树木不同径级根系腐殖化过程中胡敏酸和富里酸的累积特征
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Accumulation of humic acid and fulvic acid during root humification of three diameters of two dominant subalpine trees in western Sichuan, China
LIU Qun, ZHUANG Li-Yan, YANG Wan-Qin, NI Xiang-Yin, LI Ting-Ting, XU Zhen-Feng
植物生态学报 . 2017, (12): 1251 -1261 .  DOI: 10.17521/cjpe.2017.0169