1) thinning techniques
抚育间伐技术
2) thinning
[英][θin] [美][θɪn]
抚育间伐
1.
The thinning experiments on the natural secondary forest of Pinus massoniana;
马尾松天然次生林抚育间伐试验研究
2.
Techniques of Thinning and Pruning in Plantations of Pinus ellottii;
湿地松林抚育间伐与修枝技术
3.
Thinning Effects and Technologies of Mixed Forest of Artificial KoreanPine and Natural Regenerated Deciduous Broadleaved Trees in Liaodong Region;
辽东地区阔叶红松混交林抚育间伐效果及其技术的探讨
3) tending and thinning
抚育间伐
1.
Different tending and thinning intensity impact D.
抚育间伐是培育森林的1项重要营林措施,同时又可以早期利用其木材的主要途径。
2.
With start-up period of tending and thinning in 2004, sum up experiences, carry out the tending and thinning of the man-made plantation that performs the best with mechanical thinning intensity by Pn = 33%.
天保工程实施以来,工程区停止一切商品性采伐,2004年随着抚育间伐的启动,总结抚育间伐试验,进行人工商品林抚育间伐以Pn=33%的机械间伐强度为最好,不仅能提高林分平均直径生长量、林分的生长率、单位面积的蓄积量,还能提高生态防护效能。
3.
Through study on test of intensity effect of tending and thinning for plantation of Pinus Massoniana for 15 years, the result shows that the intensity thinning performs the best in growth effect of DBH and single volume, the volume of the intensity and thinning is the biggest; and different thinning and intensity has non clear influence to trees height and total harvest volumeof the stand.
通过对15a生的马尾松人工林进行抚育间伐强度效应试验研究,结果表明:强度间伐对胸径和单株材积生长效应最佳,强度间伐的蓄积量最大;不同间伐强度对树高生长和林分总收获量无显著影响。
4) intermediate cutting
抚育间伐
1.
Sustainable control effect of Tomicus piniperda by intermediate cutting;
抚育间伐持续控制松纵坑切梢小蠹效果研究
2.
Fixed position observation site and temporary site in Pinus yunnanensis pure forests were set to study the effects of intermediate cutting on structure features and biodiversity.
为了了解抚育间伐对云南松纯林的结构和多样性影响,在云南松纯林内设置抚育间伐和未间伐的定位观测样地和临时样地,通过对所设置的样地进行调查测定分析,并以空间代时间对同一立地条件中抚育间伐22 a后的云南松林及未间伐的云南松林物种多样性进行了对比分析。
3.
Bionomics of Tomicus piniperda was analyzed,the mathematical model of complex adaptive system of Tomicus piniperda is established by analysis sustainable control effect of Tomicus piniperda by different levels of intermediate cutting,and discusses the convergence of the model.
根据松纵坑切梢小蠹的主要生物学特征,通过分析抚育间伐持续控制松纵坑切梢小蠹虫害的机理,应用复杂适应系统(CA S)理论,建立了模拟松纵坑切梢小蠹虫害的一种动态演化数学模型,并讨论了模型的收敛性。
5) tending thinning
抚育间伐
1.
And the effects of tending thinning were discussed in several aspects: the growth of crown, the growth of diameter, the growth of height, fruiting, resistance of trees & the effects of environment conditions and management benefits.
介绍了玄武岩落叶松母树林的生态特点及林分类型,并从树冠生长、直径生长、树高生长、结实、林木抗性及环境条件影响和经营效益6个方面对抚育间伐的效果进行了讨论。
2.
The present situation of tending thinning for middle-aged and young plantation was reviewed based on the investigation carried out in Nanping,Shanming etc.
本文通过对福建省南平市、三明市等地的中幼林抚育间伐工作的调查,总结了福建中幼林抚育间伐开展基本情况,分析了存在问题,提出了推进中幼林抚育间伐的对策建议。
3.
Different tending thinning intensity has an impact on the diameter,height and volume growth of tree.
抚育间伐是培育森林的重要营林措施之一,同时又是早期利用木材的主要途径。
6) Tending felling
抚育间伐
1.
Effects of tending felling on larch growth;
抚育间伐对落叶松生长量的影响
2.
Analysis made the points that in reasonable tending extent, average biomass of individual tree under light tending is lower than that of tree under heavier tending, while the biomass of the stands increased greater after a more intensive tending felling.
对草河口地区不同林龄阶段红松人工林抚育间伐后生物量进行了对比试验研究。
3.
Based on the community structure analysis of the Larix principis-rupprechtii artificial forest and the Betula platyphylla secondary forest, this thesis evaluated the underway tending felling and improvement of second-growth-stand, then compared their productivity in mountain region and steppe region.
此地区华北落叶松人工林抚育间伐的起始年龄为12～14年之间，在首次抚育间伐后5～10年之间可进行第二次抚育间伐。
补充资料：抚育
①照料、教育儿童，使健康地成长：～孤儿。②照管动植物，使很好地生长：～幼畜ㄧ～森林。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条