Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"wood production"”.
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Stem and Branch Diameter Response in Pruned Douglas-fir Plantations (Pseudotsuga menziesii var. menziesii): Implications for Volume and Clear Wood Production in the U.S. Pacific Northwest
… 60-80 years of age. Due to 40-year rotations in production settings, this species has the potential to benefit from the silvicultural treatment of pruning. Previous literature indicates that pruning may increase overall height and diameter growth rates, reduce log taper and produce more valuable …
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Mediterranean forest resilience to drought and climate change
… resilience estimation and show that, for Spanish woodlands, the relative water availability during and following drought events are important in driving the canopy greenness loss and recovery. I show that despite increasing aridity, and examples of localised die-back events, Spanish forests are …
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Growth, water use efficiency and stable carbon isotopes in commercial clones of Eucalyptus
… water use efficiency and harvestable stem production under a limited water supply. This study investigated the effects of soil moisture availability on the growth and water use efficiency of 6 commercial clones of Eucalyptus commonly grown in South Africa with the aim of determining the …
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ΔΥΝΑΤΟΤΗΤΕΣ ΚΑΙ ΠΡΟΥΠΟΘΕΣΕΙΣ ΑΞΙΟΠΟΙΗΣΗΣ ΓΕΩΡΓΙΚΩΝ ΕΚΤΑΣΕΩΝ ΜΕ ΦΥΤΕΙΕΣ ΔΑΣΟΠΟΝΙΚΩΝ ΕΙΔΩΝ
… SPECIES ARE SUBSIDIZED FROM EEC REGULATIONS. THE WOOD PRODUCTION COMING FROM REFORESTATIONS IN VERTISKOS MOUNTAIN (DISTRICT THESSALONIKI) BY PINUS NIGRA AND P.BRUTIA X.P.HALEPENSIS WERE THE BASISFOR SCENARIO'S CONSTRUCTIONS FOR ESTABLISHING FOREST PLANTATIONS IN AGRICULTURAL LAND BY OWNERS, TENATS …
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Tree-ring analysis and stem biomass estimation of limba (Terminalia superba Engl. & Diels) in the framework of sustainable forest management
… The lack of long-term data on tree growth, wood production and carbon stocks hampers the implementation of sustainable forest management and possible financing by Kyoto Protocol related tools like REDD+ and Clean Development Mechanisms. Africa is the continent with the lowest percentage of …
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Using microarrays to elucidate the genetic basis of wood density in sitka spruce and poplar
… the pulping industry.<br/>The high demand for wood and the increasing human population mean that<br/>natural forests are being lost and degraded. A potential solution to this problem is<br/>to improve the productivity of our plantation forests to relieve the pressure on<br/>natural forests in …
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Breaking down barriers: Market opportunities for Appalachian forest products in Central America
… strengths and weaknesses of Appalachian wood products sales in Central America. In the future, there may be a greater need for international forest products in Central America due to increasing population size, tourism, and deforestation. Potential market opportunities for Appalachian …
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Soil Co2 Efflux and Soil Carbon Content as Influenced by Thinning in Loblolly Pine Plantations on the Piedmont of Virginia
… after accounting for losses in aboveground wood production, thinning resulted in an overall 10% loss in stand carbon storage. However, this analysis did not take into account the fate of wood products following removal. Soil respiration, soil temperature, and soil moisture were measured …
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Swamp ecology in a dynamic coastal landscape: an investigation through field study and simulation modeling
… IBM followed the weekly growth, mortality, and reproduction of individuals of Taxodium distichum and Nyssa aquatica trees in a 1-km2 spatial grid, using historical time-series of stage and salinity data as inputs. IBM simulations predicted that increased flooding leads to swamps with reduced basal …
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Projecting Carbon Pools in Aboveground Woody Accumulations and Harvested Wood in Loblolly Pine Plantations of the Southern United States: From Stand-level to Regional Scales
Accounting for in-woods carbon storage in carbon accounting systems may be insufficient when substantial amounts of sequestered carbon are harvested and converted to long-lived wood products and landfills. The potential for offsetting greenhouse gas (GHG) emissions by storing carbon in managed …
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BREEDING SEASON AVIAN COMMUNITY COMPOSITION AND PREY AVAILABILITY IN EUCALYPTUS AND SLASH PINE PLANTATIONS OF SOUTHWESTERN LOUISIANA
<p>The increased demand for wood products related to industries such as bioenergy and paper has resulted in a need for a consistent supply of raw materials. Eucalyptus (<em>Eucalyptus </em>spp.) plantations have the potential to boost wood production for pulpwood and biomass feedstocks. Species …
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Environmental and developmental regulation of carbon cycling in a warm-temperate forest
… and an expected decline in Net Primary Production (NPP) with increasing age. To examine the effect of elevated atmospheric CO2 concentrations on ecosystem C loss via autotrophic respiration (Ra), I measured rates of fine root respiration at the Duke Free Air CO2 Enrichment (FACE) …
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Growth and nutrient relations in black cottonwood in South-Coastal British Columbia
… relationships between the growth of black cottonwood, expressed as site index, and site units, under story vegetation, soil nutrient contents, and foliar nutrient concentrations in29 black cottonwood stands in south-coastal British Columbia. The final phase of the study was a fertilizer trial in …
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Relationships between soil chemical properties and forest structure, productivity and floristic diversity along an altitudinal transect of moist tropical forest in Amazonia, Ecuador.
Entlang eines Höhentransektes von ungestörten höheren Tiefland zu montanen Primärwäldern in Nordost Ecuadors, im Gebiet des Sumaco Biosphären Reservates (SBR), untersuchten wir die die Hypothesen, dass (1) die Verfügbarkeit von Phosphor niedrig ist in den tiefer gelegenen Wäldern und mit …