نتایج جستجو برای: wood resources

تعداد نتایج: 305467  

2018
Federico Sabbadin Giovanna Pesante Luisa Elias Katrin Besser Yi Li Clare Steele-King Meg Stark Deborah A. Rathbone Adam A. Dowle Rachel Bates J. Reuben Shipway Simon M. Cragg Neil C. Bruce Simon J. McQueen-Mason

Lignocellulose forms the structural framework of woody plant biomass and represents the most abundant carbon source in the biosphere. Turnover of woody biomass is a critical component of the global carbon cycle, and the enzymes involved are of increasing industrial importance as industry moves away from fossil fuels to renewable carbon resources. Shipworms are marine bivalve molluscs that diges...

2007
Peter C. Frederick John C. Ogden PETER C. FREDERICK JOHN C. OGDEN

-We compare long-term movement behavior, breeding site philopatry, population dynamics and prey choice of White Ibises (Eudocimus albus) and Wood Storks (Mycteria americana) in order to illustrate (1) differences in strategies for exploiting spatially and temporally unpredictable food resources in wetlands of the southeastern U.S., and (2) the temporal and geographic scale at which conservation...

Coating performance is greatly influenced by the properties of the wood substrate. This study was focused on evaluating the performance of coatings on both preservative- and thermally-treated wood. A number of commercially formulated semi-transparent stains Alkyd, Alkyd-Acrylic and PU were applied on four different types of preservative treated and heat-treated wood and their performances were ...

Journal: :پژوهش های علوم و فناوری چوب و جنگل 0

in this research, the effect of tension wood formation in populus nigra on its anatomical characteristics was studied. vessel element and ray frequency (n/mm²), vessel diameter and ray dimensions were measured in both normal and tension wood. furthermore, the formation of gelatinous layer (g-layer) in the fibers of tension wood was studied. the results showed that the vessel proportion and diam...

2007
C. R. Beverly J. D. Morris J. J. Collopy T. G. Baker P. N. J. Lane

Forest plantations for wood production are an increasingly important land use in Australia. It is important to be able to predict the impact of this expansion on surface water and groundwater resources which are under significant stress in many regions. A modelling approach is essential to account for the many interacting environmental and management factors which may influence plantation growt...

2016
Katja Juutilainen Mikko Mönkkönen Heikki Kotiranta Panu Halme

The increasing human impact on the earth's biosphere is inflicting changes at all spatial scales. As well as deterioration and fragmentation of natural biological systems, these changes also led to other, unprecedented effects and emergence of novel habitats. In boreal zone, intensive forest management has negatively impacted a multitude of deadwood-associated species. This is especially alarmi...

Wood vinegar is a substance, derived from cooling black carbon fire, which could be used instead of chemical materials in the agriculture industry as an organic compound. In order to study the effectiveness of pine wood vinegar on physiological and photosynthesis traits of cucumber, two experiments were conducted based on a completely randomized design with six treatments including 0, 1250, 200...

2002
Philip Turner

The paper outlines options for managing the quality and value of eucalypt plantation resources. It begins with the hypothesis that variation is the largest single issue with regard to wood quality and that the extent of variation creates both the biggest problems and the greatest opportunities for maximizing the value of plantation resources. It is argued that we need to understand the essentia...

Journal: :international journal of environmental research 2009
n. velmurugan s.s han y.s. lee

the major objectives of this study were to find out the mechanism behind the sapstaining fungal hyphae penetration into wood elements using electron microscope and to evaluate the exact role of phenolic compounds existing in wood vinegar towards the sapstaining fungal growth inhibition. to formulate the new environmental friendly wood preservative, we neutralized (to ph 7) wood vinegar with nao...

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