The diameter at breast height(DBH) of each tree was recorded.We determined the life table, age structure and survivorship curve of the Abies fargesii to analyze population structure and dynamics.
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释义
巴山冷杉幼苗储备丰富,巴山冷杉自身的生物学特性及环境因素是形成这种现象的主要原因;
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