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杨树混交林地土壤微生物与酶活性的变异研究*
孙翠玲,郭玉文,佟超然,徐兰成,王珍
A STUDY ON THE SOIL MICROBES AND SOIL ENZYME ACTIVITIES IN VARIOUS POPLAR MIXED STANDS
Cuiling Sun,Yuwen Guo,Chaoran Tong,Lancheng Xu,Zhen Wang
林业科学 . 1997, (6): 488 -497 .