نتایج جستجو برای: populus euramericana
تعداد نتایج: 5539 فیلتر نتایج به سال:
انجام عملیات هرس و حذف تعدادی از جستهای هر پایه صنوبر در روش بهرهبرداری کوتاهمدت باعث میشود تا جستهای باقیمانده از مواد غذایی، نور و آب بیشتری برخوردار شده و در نهایت تنههای قطورتر و بلندتری تولید نمایند که در صنایع با ارزش افزوده بیشتری همانند صنایع کاغذ مورد استفاده دارد. این مقاله تأثیر شدت هرس در مقدار تولید چوب در واحد سطح و همچنین ابعاد و اندازه چوبهای تولیدی را بررسی نموده است. این...
Poplar (Populus sp.) plantations have been, on the one hand, broadly used in northern China for urban greening, combating desertification, as well as for paper and wood production. On the other hand, such plantations have been questioned occasionally for their possible negative impacts on water availability due to the higher water-use nature of poplar trees compared with other tree species in w...
The carbohydrate composition (glucose, xylose, mannose, galactose, and arabinose) of lignocellulosic biomass Liriodendron tulipifera, Populus nigra × maximowiczii, alba glandulosa, euramericana, Salix alba, Quercus variabilis, Robinia pseudoacacia, Zelkova serrata, Abies holophylla, Pinus rigida, rice straw, peanut hull was investigated based on high-performance liquid chromatography (HPLC) gas...
Heat treatment is an eco-friendly and efficient way to improve the defective properties of wood, such as its hygroscopic nature, lack dimensional stability, low resistance against biological degradation, produce a green sustainable wood material for construction buildings. However, these treatments alter substrates could influence performance coating products necessary maintain surface features...
Background and Purpose: Most projections of the global energy use predict that biomass will be an important component of primary energy sources in the coming decades. Short rotation plantations have the potential to become an important source of renewable energy in Europe because of the high biomass yields, a good combustion quality as solid fuel, ecological advantages and comparatively low bio...
Sustainable production of lignocellulosic biomass for energy use can contribute to climate change mitigation. This work aims compare the twelve fast-growing woody taxa belonging Eucalyptus, Casuarina, Populus and Paulownia genera, quality their its valorizing through transformation into pellets, as well effect crop on soil. Over course two rotations, plant growth were assessed. The yield aboveg...
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