thinning相关论文
基于地面三维激光扫描仪获取树木的点云数据,提出了一种通过细化点云数据体素生成树木骨架的方法。基于树木点云数据构建体素空间,......
We report a new application of optical coherence tomography(OCT) to investigate the cranial meninges in an animal model ......
The shortage of forest tending funds in China has caused the retarded thinning for those forests that need urgently the ......
Afforestation and forest management can increase carbon stocks and account for emission reduction according to the Kyoto......
This paper gives a synthetic view on the Jurassic tectonics of North China,with an attempt to propose a framework for th......
The influence of swelling time,temperature,NaCl concentration and polymer micro-gel concentration on rheological propert......
In tube hydroforming with axial feeding,under the effect of coupled internal pressure and axial stress,wrinkles often oc......
Three types of crust exist in the area studied. There was an assembled continent at the end of the Hercynian-Indosinian......
High potential productivity together with short rotation periods have made hybrid aspen an interesting option for wood p......
The objectives of this study were:(1) to deter-mine carbon stock changes in the soil and forest floor of black pine (Pin......
A novel visual robotic arc welding system based on circular laser vision sensor is developed.After image de-noising,imag......
本文在"海岸林风害危险率评价的理论推导"（Journal of Forestry Research, 2002, 13(4)）一文的基础上，对1997年12月经四种间伐处理的......
Based on the discussion of relationships between thinning and wind damage,and published information, a method for estima......
为弄清间伐对落叶松人工林内环境因子,进而对落叶松林内天然更新的影响,在辽东山区对40年生落叶松人工林进行了5种不同强度的间伐......
Effects of thinning on stand structure and tree stability in an afforested oriental beech (Fagus ori
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Effect of thinning on above-ground biomass accumulation in a Douglas-fir plantation in southern Ital
We investigated the effects of a long-term thinning experiment on the distribution of above-ground biomass of Douglas-fi......
Many aquatic habitats in coastal Oregon have been impacted by historic land use practices that led to losses of in-strea......
Options for converting a clone trial of Eucalyptus camaldulensis into a clonal seed orchard consider
We evaluated a clone trial comprised of 20 ramets each of 40 Eucalyptus camaldulensis clones for growth and fertility at......
Effect of stand density and humus removal on regeneration of Pinus densiflora seedlings in a mixed c
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Effects of thinning on plant species diversity and composition of understory herbs in a larch planta
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Mantle xenoliths from Late Cretaceous basalt in eastern Shandong Province: New constraint on the tim
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
本文提出了以英语课文为载体,以培养学生英语思维模式为目标的教学模式。使用顺序化、细化、量化语法知识点的方法,循序渐进的培养......
指纹鉴别技术作为一种人身鉴别方法 ,是各种人体生理特征人身鉴别技术中最重要的一种 ,而指纹识别中细化处理非常重要 .描述了一种......
根据承德塞罕坝机械林场各个分场华北落叶松林分内林木的角尺度研究,对林分设置4个间伐强度处理,其密度分别为225株/hm2,600株/hm2......
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通过野外调查取样和室内测试与分析，研究了不同抚育间伐强度下，人工红松林土壤物理性质及其持水特性。结果表明：与对照相比，0～20 cm土层......
Four different fruit thinning severities were tested.The thinning treatments were carried out in October before the o......
Mantle xenoliths from Late Cretaceous basalt in eastern Shandong Province: New constraint on the tim
The age of the alkali basalt from Daxizhuang in Jiaozhou, eastern Shandong, was determined to be 73.5 ± 0.3Ma by40Ar-39......
为研究在关帝山地区油松(Pinus tabuliformis)天然次生林抚育间伐后保留木径向生长的变化,以间伐后油松保留木为研究对象,建立9块......
