Analysis of the Changes of Poplar Resources and the Causes in Shandong Province

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ZHANG Jinliang, KONG Yuguang, LU Hongchun, GONG Yanping, ZHANG Xueqiang, DONG Dejin

Forest and Grassland Resources Research . 2019, (1): 19 -24 . DOI: 10.13466/j.cnki.lyzygl.2019.01.004