نتایج جستجو برای: Black alder

تعداد نتایج: 144873  

Journal: :international journal of environmental research 0
z. miletić institute of forestry, department for silviculture, plantation establishment and forest ecology, belgrade, serbia m. knežević faculty of forestry, department of forest ecology, belgrade, serbia s. stajić institute of forestry, department for silviculture, plantation establishment and forest ecology, belgrade, serbia o. košanin faculty of forestry, department of forest ecology, belgrade, serbia i. đorđević institute of forestry, department for silviculture, plantation establishment and forest ecology, belgrade, serbia

the effect of european black alder (alnus glutinosa l.) on the contents of carbon and nitrogen,exchangeable base cations, and plant available forms of phosphorus in the reclaimed mine soils formed bywaste deposition from opencast lignite mines was researched in central serbia. it was concluded that thegreatest part of dead organic residues reaching the soil under european black alder monocultur...

Journal: :international journal of environmental research 2012
z. miletić m. knežević s. stajić o. košanin i. đorđević

the effect of european black alder (alnus glutinosa l.) on the contents of carbon and nitrogen,exchangeable base cations, and plant available forms of phosphorus in the reclaimed mine soils formed bywaste deposition from opencast lignite mines was researched in central serbia. it was concluded that thegreatest part of dead organic residues reaching the soil under european black alder monocultur...

2015
Ernst van der Maaten Marieke van der Maaten-Theunissen Allan Buras Tobias Scharnweber Sonia Simard Knut Kaiser Sebastian Lorenz Martin Wilmking Liping Zhu

In this study, we explore the potential to reconstruct lake-level (and groundwater) fluctuations from tree-ring chronologies of black alder (Alnus glutinosa L.) for three study lakes in the Mecklenburg Lake District, northeastern Germany. As gauging records for lakes in this region are generally short, long-term reconstructions of lake-level fluctuations could provide valuable information on pa...

Journal: :Vestnik farmacii 2021

Annual renewable resource potential of medicinal plant materials in the Republic Belarus - Black alder leaves and Gray has been studied. It was found that average annual supply black for last 6 years 7845898,5 tons gray 733257,5 tons. The stock is almost 10 times as high leaves. During storing wood from 2015 to 2019, on 65,623,8 dry were unused by-product. Annually sylvulas are created forest f...

2010
Trevor C. Lantz Sarah E. Gergel Greg H. R. Henry

Results Mean summer temperature across the study area decreased by 3 C per degree of increasing latitude (6 C across the study area). In the northern part of the study area, where seed viability was low, alder was less dominant than at southern sites where seed viability was high. The age structure of alder populations across the temperature gradient was highly variable, except in the northern ...

Journal: :جنگل و فرآورده های چوب 0
رضا اولادی دانشگاه تهران، گروه علوم و صنایع چوب و کاغذ، دکترای علوم و صنایع چوب و کاغذ سعیده نصیریانی گروه علوم و صنایع چوب و کاغذ دانشکده منابع طبیعی، دانشگاه تهران، کرج افشین دانه کار دانشیار، گروه مهندسی محیط زیست، دانشکده منابع طبیعی دانشگاه تهران، کرج کامبیز پورطهماسی دانشیار، گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی دانشگاه تهران، کرج

although in the recent years, the effect of ground water level on radial growth of black alder has attacked attentions of scientist but to comprehensively interpret the results of such studies, we need to investigate the independent influence of climate on ring width and other wood anatomical features of this species. hence, in current study, the influence of climatic factors on the annual ring...

2018
Joseph E. Knelman Emily B. Graham Janet S. Prevéy Michael S. Robeson Patrick Kelly Eran Hood Steve K. Schmidt

Past research demonstrating the importance plant-microbe interactions as drivers of ecosystem succession has focused on how plants condition soil microbial communities, impacting subsequent plant performance and plant community assembly. These studies, however, largely treat microbial communities as a black box. In this study, we sought to examine how emblematic shifts from early successional A...

2013
Michal Slezák Richard Hrivnák Anna Petrášová Daniel Dítě

Plant species establishment and survival along environmental gradients have commonly been attributed to different environmental niches, life-history and adaptive traits [1]. Effective phenotype adaptation of alder species to extreme soil conditions allows them to form canopy-closed forest vegetation on alluvial and marshland localities. Alder forests represent azonal plant communities developed...

ژورنال: مواد پرانرژی 2016

The reversibility of the Diels-Alder reaction can be used advantageously in polyurethane materials to endow them with recyclable, thermally reversible properties and self-healing ability to expand their application range. In this paper, linear and crosslink polyurethanes based on HTPB, which exhibit thermal reversibility through Diels-Alder and retro Diels-Alder reactions, were prepared and cha...

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