释义 |
silviculture 英/ ?s?lv??k?lt?? / 美/ ?s?lv??k?lt??r / - 1
农业科学 森林培育 营林 The former study of P. yunnanensis was focused on genetic improvement, forest protection, exploitation and utilization of non-timber resources, silviculture and so on, the basic study of approaching-nature forest management of pure stand has not been reported. 但是,云南松以前的研究主要集中在遗传改良、森林保护、非木材资源开发利用和营林等方面,对纯林近自然化改造的基础研究还未见报道。 造林学 造林决策
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