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[期刊论文] 作者:Indra Prasad Sapkota,Mulualem Tigabu,Per Christer Odén,,
来源:Journal of Forestry Research 年份:2009
本文调查了尼泊尔季节性干旱的娑罗双树原始林两种生态位(间隙和全郁闭)下树种多样性及苗木再生情况,并对物种多样性指标和苗木再生属性与林分间隙特征进行了相关性分析。结...
[期刊论文] 作者:Abolfazl Daneshvar,Mulualem Tigabu,Asaddollah Karimidoost,Per Christer Odén,
来源:城市道桥与防洪 年份:2017
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、测量监控等方面人手,介绍了S226海滨大桥...
Longevity of Juniperus procera seed lots under different storage conditions: implications for ex sit
[期刊论文] 作者:Negash Mamo,Diriba Nigusie,Mulualem Tigabu,Demel Teketay,Miftah Fekadu,,
来源:Journal of Forestry Research 年份:2011
Juniperus procera Endl. is economically important timber species, but its populations are extremely small and fragmented in its natural habitat, thus, calling f...
Growth characteristics and reproductive output of dwarf mistletoe-infected Juniperus polycarpos in I
[期刊论文] 作者:Abolfazl Daneshvar,Mulualem Tigabu,Mostafa Farhadi,Per Christer Odn,Asaddollah Karimidoost,
来源:城市道桥与防洪 年份:2014
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、测量监控等方面人手,介绍了S226海滨大桥...
Coppicing ability of dry miombo woodland species harvested for traditional charcoal production in Za
[期刊论文] 作者:Stephen Syampungani,Mulualem Tigabu,Nalukui Matakala,Ferdinand Handavu,Per Christer Oden,,
来源:Journal of Forestry Research 年份:2017
The miombo woodland is one of the most extensive woodlands in Africa, supporting livelihoods based on biomass fuel for millions of rural people. However, there...
[期刊论文] 作者:Sovu,Mulualem Tigabu,Patrice Savadogo,Per Christer Odén,Lamphoune Xayvongsa,,
来源:Journal of Forestry Research 年份:2010
人工补植通常用于增加低商业价值树种盛行的次生林中期望树种的密度。本研究评估了均格种植法(vis-à-vis gap)和行植法(line planting)2种人工补植方法,以及老挝过度采伐的...
[期刊论文] 作者:陈奶莲,汪攀,吴鹏飞,Mulualem Tigabu,张云鹏,
来源:森林与环境学报 年份:2015
利用匀强电场对杉木当年生茎段外植体进行处理,研究电场强度和处理时间对杉木茎段芽诱导的影响。在1.0 k V·cm-1的电场强度下处理5 min,芽诱导率最高,达100%,比对照组增...
Seed germination and seedling establishment of Neotropical dry forest species in response to tempera
[期刊论文] 作者:Benigno González-Rivas,Mulualem Tigabu,Guillermo Castro-Marín,Per Christer Odén,,
来源:Journal of Forestry Research 年份:2009
A study was conducted to examine the germination requirements of Cedrela odorata, Guaiacum sanctum and Calycophyllum candidissimum seeds, and the effect of ligh...
[期刊论文] 作者:Benigno González-Rivas,Mulualem Tigabu,Guillermo Castro-Marín,Per Christer Odén,,
来源:Journal of Forestry Research 年份:2009
定量分析了被废弃4年、9年和14年的农田地上派生的次生林土壤中种子组成和密度,从而检测在次生林演替形成过程中,土壤种子库是否能随着植物种群的集成而集成。分别在废弃了4...
Growth characteristics and reproductive output of dwarf mistletoeinfected Juniperus polycarpos in Ir
[期刊论文] 作者:Abolfazl Daneshvar,Mulualem Tigabu,Asaddollah Karimidoost,Mostafa Farhadi,Per Christer Odén,,
来源:Journal of Forestry Research 年份:2014
Dwarf mistletoes are parasitic flowering plants that infect conifers, resulting in substantial loss of growth and mortality. Recently, forest managers in Iran a...
[期刊论文] 作者:Guillermo Castro Marín,Mulualem Tigabu,Benigno González-Rivas,Per Christer Odén,,
来源:Journal of Forestry Research 年份:2009
对废弃4年、9年和14年的3块废弃农田的木本植物物种组成、植物密度和种群结构的恢复情况进行了表征。在每块废弃地上,建立70个100m2样地,鉴别和计数幼苗、幼树和成年树。在4...
[期刊论文] 作者:马静,陈智裕,邹显花,Mulualem Tigabu,桂智彬,
来源:福建林业科技 年份:2015
以南方4种针叶树种(杉木、马尾松、湿地松、火炬松)种子为研究对象,采取自主设计的高压静电种子处理装置,设置不同的电场强度(1.5、2.5、3.5、4.5、5.5 k V·cm-1)和处理时间...
[期刊论文] 作者:Guillermo Castro Marín,Mulualem Tigabu,Benigno González Rivas,Per Christer Odén,
来源:城市道桥与防洪 年份:2009
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、测量监控等方面人手,介绍了S226海滨大桥...
[期刊论文] 作者:Emma Sandell Festin,Mulualem Tigabu,Mutale N. Chileshe,Stephen Syampungani,Per Christer Odén,
来源:城市道桥与防洪 年份:2019
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、测量监控等方面人手,介绍了S226海滨大桥...
[期刊论文] 作者:Mostafa Farhadi,Mulualem Tigabu,Alireza Ghasemi Arian,Mehdi Sharifani,Abolfazl Daneshvar,Per Christer,
来源:Journal of Forestry Research 年份:2013
Acer velutinum Boiss is a valuable tree species native to Iran, and its seeds possess physiological dormancy that hampers seedling production in the nursery for...
[期刊论文] 作者:Guillermo Castro Marín,Mulualem Tigabu,Benigno González Rivas,Per Christer Odén,,
来源:Journal of Forestry Research 年份:2009
在尼加拉瓜Chacocente野生动物保护区对极又平荚木,毛风铃木和Lonchocarpus minimiflorus(Donn.Sm.)树种的天然更新进行了调查,并分析了更新异质性与地形坡度和入射光的关系...
Picea species from humid continental and temperate marine climates perform better in monsoonal areas
[期刊论文] 作者:Fangqun Ouyang,Jianwei Ma,Junchen Wang,Lisheng Kong,Hanguo Zhang,Mulualem Tigabu,Junhui Wang,
来源:林业研究:英文版 年份:2021
Picea spp.are a prominent component of the boreal,montane,and sub-alpine forests in the Northern Hemisphere,and have substantial economic importance due to their high quality fibre.However,performance and wood properties of the genus have n......
[期刊论文] 作者:陈奶莲,汪攀,吴鹏飞,Mulualem Tigabu,张云鹏,马祥庆,,
来源:森林与环境学报 年份:2015
利用匀强电场对杉木当年生茎段外植体进行处理,研究电场强度和处理时间对杉木茎段芽诱导的影响。在1.0 k V·cm-1的电场强度下处理5 min,芽诱导率最高,达100%,比对照组增加62...
Physico-chemical characteristics and heavy metal concentrations of copper mine wastes in Zambia: imp
[期刊论文] 作者:Mutale N.Chileshe,Stephen Svampungani,Emma Sandell Festin,Mulualem Tigabu,Abolfazl Daneshvar,Per Christer,
来源:林业研究(英文版) 年份:2020
Soil characterization is a vital activity to develop appropriate and effective restoration protocols for mine wastelands while insights into the total content o...
[期刊论文] 作者:Sekaran,Mulualem Tigabu,P.C. Odén,,
来源:Journal of Forestry Research 年份:2011
Improvement in seed and seedling quality of Acacia auriculiformis after culling phenotypically inferior trees was studied in a 6-year old seed production area (...
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