نتایج جستجو برای: wood resources
تعداد نتایج: 305467 فیلتر نتایج به سال:
Minable rock phosphate is a finite resource. Replacing mineral phosphorus (P) fertilizer with P-rich secondary resources is one way to manage P more efficiently, but the importance of physicochemical and microbial soil processes induced by secondary resources for plant P uptake is still poorly understood. Using radioactive-labeling techniques, the fertilization effects of dairy manure, fish slu...
In spite of many alternative materials like iron, plastic, and concrete, which can be used instead of solid wood in different areas, wood remains superior as a natural engineering material. Due to depletion of forest resources, forest products industries are faced with a crisis in obtaining suitable raw materials in suffi cient amount. Therefore, layered composite materials like vertically and ...
Residents in localities throughout the world voluntarily participate in the routine recycling of household wastes, such as paper, metals, and plastics containers. But when a house in their neighborhood gets built or torn down, most of the debris – including wood waste – gets landfilled. Such a waste of material suggests that there are opportunities to add value to these under-utilized resources...
0006-3207/$ see front matter 2013 Elsevier Ltd. All rights reserved. http://dx.doi.org/10.1016/j.biocon.2013.06.014 ⇑ Corresponding author at: School of Natural Resources and Environment, University of Michigan, Ann Arbor, MI, United States. Tel.: +1 (734) 764 9542. E-mail addresses: [email protected] (J.S. Brandt), [email protected] (E.M. Wood), [email protected] (A.M. Pidgeon), lianxian.han@gma...
In our efforts to find new whitening agent from natural resources, we focused on wood of Artocarpus heterophyllus which shows anti-melanogenesis activity. By activity-guided fractionation of A. heterophyllus wood extract, a new prenylated flavonoid, 3-prenyl luteolin (1) was isolated. The IC(50) of mushroom tyrosinase inhibitory activity of 1 was 76.3 microM. The results of the comparison with ...
Incineration ashes may be treated either as a waste to be dumped in landfill, or as a resource that is suitable for re-use. In order to choose the best management scenario, knowledge is needed on the potential environmental impact that may be expected, including not only local, but also regional and global impact. In this study, A life cycle assessment (LCA) based approach was outlined for envi...
In this paper we conduct the analysis of economic and ecological aspects of alternative energy carriers based on biomass sources. These sources encompass short rotation copies, forest wood residue, wood industry residues, waste wood as well as energy crops. In 2010 the energy output from all these biomass-based alternative energy carriers was about 4000 PJ in the EU-15. We show which energy out...
Understanding interspecific interactions is key to explaining and modelling community development and associated ecosystem function. Most interactions research has focused on pairwise combinations, overlooking the complexity of multispecies communities. This study investigated three-way interactions between saprotrophic fungi in wood and across soil, and indicated that pairwise combinations are...
The white-backed woodpecker (WbW) is a critically endangered species in Europe. The Białowieża Forest (BF) is of major importance for its conservation. Distribution of WbW in deciduous stands of the BF was studied in relation to habitat resources. In March–April 2005 we replicated a 1991 study where the WbW population was estimated using playback drumming techniques. Woodpeckers were recorded i...
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