必须加强用材林林分抚育使其达到合理的林分结构以使其经济效益最大化。
Therefore, appropriate stand tending measures should be taken to improve the forest structures of timber forest, so as to gain the optimum economic benefits.
本文根据林分结构和森林产量长期实验林的研究成果，提出了刺槐林的抚育作业次序。
In the paper the sequence of forest tending operations in black locust stands is proposed, based on results of long-term stand structure and forest yield trials.
通过合理的林分改造及抚育管理，可以提高单位面积的产量，增加林农的收入。
The yield unit area can be increased after rational stand transformation and tending management, farmers income raised.
抚育间伐对森林生长的影响体现在很多方面，包括对林分生产力及其林分因子、林下植被及灌木、林下土壤和天然更新影响等方面。
The effects of thinning on forest growth embodied some aspects which mostly include the effects on stand productivity, stand factors, stand biomass, vegetation and shrubs under-forest, soil and so on.
对林相破碎、生产力低的林分加大抚育力度，提高林分质量和效益，同时调整采伐方式。
Measurement is made to forbid cutting, to enforce the plantation, to increase the forest quality and benefit, and adjust the cutting methods.
对近40年生以柞树为主的天然次生林采取不同抚育间伐措施后，定位研究林分凋落物的性质。
After different thinning measures were taken in the 40-year-old nature secondary forest mainly made of oaks, fixed samples were collected to study characteristics of litters.
对近40年生以柞树为主的天然次生林采取不同抚育间伐措施后，定位研究林分凋落物的性质。
After different thinning measures were taken in the 40-year-old nature secondary forest mainly made of oaks, fixed samples were collected to study characteristics of litters.
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