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intensive silviculture
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intensive silviculture
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农学
森林营造
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intensive silviculture
集约育林
在林地上投入必要的人力、物力和财力,运用现代科学技术系统培育各类森林,降低不同因子对林木生长的限制作用,提高林分生产力,从而达到林木成活、速生、丰产、优质的目标,进而形成多功能、高效益的森林生态系统。
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manifold crystallization
manifold economic sectors in the transition period
manifold equivalent to zero
manifolder
manifold geometry
manifold learning
manifold of algebraic elements
manifold of bounded curvature
manifold of conics
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manifold of pre-assigned curvature
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