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Relevant bibliographies by topics / Douglas fir – Residues

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Academic literature on the topic 'Douglas fir – Residues'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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Journal articles on the topic "Douglas fir – Residues"

1

Erickson, Heather E., R. L. Edmonds, and C. E. Peterson. "Decomposition of logging residues in Douglas-fir, western hemlock, Pacific silver fir, and ponderosa pine ecosystems." Canadian Journal of Forest Research 15, no. 5 (1985): 914–21. http://dx.doi.org/10.1139/x85-147.

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Logging residue decomposition rates were determined in four conifer forest ecosystems in the State of Washington, U.S.A. (coastal western hemlock, Puget lowland Douglas-fir, high-elevation Pacific silver fir, and eastern Cascade ponderosa pine), by examining wood density changes in a series of south-facing harvest areas with residues of different ages. Decomposition rates were determined for two diameter classes (1–2 and 8–12 cm) and two vertical locations (on and >20 cm above the soil surface). Pacific silver fir and ponderosa pine ecosystems had the lowest k values (0.005 and 0.010 year−1

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2

Jurgensen, M. F., M. J. Larsen, R. T. Graham, and A. E. Harvey. "Nitrogen fixation in woody residue of northern Rocky Mountain conifer forests." Canadian Journal of Forest Research 17, no. 10 (1987): 1283–88. http://dx.doi.org/10.1139/x87-198.

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N fixation rates, as estimated by the acetylene reduction technique, were determined for large woody residues on four old growth conifer sites in western Montana and northern Idaho. Residue loadings ranged from <50 Mg ha−1 on a warm, dry Douglas-fir site in Montana to >150 Mg ha−1 on a highly productive, wet, cedar–hemlock site in northern Idaho. Lignin and carbohydrate analyses indicated that wood on these sites was being decayed primarily by brown rot fungi. Ethylene production rates increased on all sites as wood decay progressed. Assuming that N-fixing bacteria were active for 180 da

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3

Dien, Bruce S., J. Y. Zhu, Patricia J. Slininger, et al. "Conversion of SPORL pretreated Douglas fir forest residues into microbial lipids with oleaginous yeasts." RSC Advances 6, no. 25 (2016): 20695–705. http://dx.doi.org/10.1039/c5ra24430g.

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4

Edmonds, Robert L., Daniel J. Vogt, David H. Sandberg, and Charles H. Driver. "Decomposition of Douglas-fir and red alder wood in clear-cuttings." Canadian Journal of Forest Research 16, no. 4 (1986): 822–31. http://dx.doi.org/10.1139/x86-145.

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Decomposition rates of Douglas-fir (Pseudotsugamenziesii (Mirb.) Franco) and red alder (Alnusrubra Bong.) wood (simulating logging residues) were determined in clear-cuttings at the Charles Lathrop Pack Experimental Forest of the University of Washington, which is located approximately 120 km south of Seattle, WA. The influence of diameter (1–2, 4–6, and 8–12 cm), vertical location (buried, on the soil surface, and elevated), season of logging (summer and winter), aspect (north and south), and wood temperature, moisture, and chemistry on wood decomposition rates were determined. Red alder wood

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5

Socha, Aaron M., Samuel P. Plummer, Vitalie Stavila, Blake A. Simmons, and Seema Singh. "Comparison of sugar content for ionic liquid pretreated Douglas-fir woodchips and forestry residues." Biotechnology for Biofuels 6, no. 1 (2013): 61. http://dx.doi.org/10.1186/1754-6834-6-61.

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6

Biswas, Rajib, Philip J. Teller, and Birgitte K. Ahring. "Pretreatment of forest residues of Douglas fir by wet explosion for enhanced enzymatic saccharification." Bioresource Technology 192 (September 2015): 46–53. http://dx.doi.org/10.1016/j.biortech.2015.05.043.

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7

Zhang, Chao, J. Y. Zhu, Roland Gleisner, and John Sessions. "Fractionation of Forest Residues of Douglas-fir for Fermentable Sugar Production by SPORL Pretreatment." BioEnergy Research 5, no. 4 (2012): 978–88. http://dx.doi.org/10.1007/s12155-012-9213-3.

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8

Srinivas, Keerthi, Fernanda de Carvalho Oliveira, Philip Johan Teller, Adilson Roberto Gonҫalves, Gregory L. Helms, and Birgitte Kaer Ahring. "Oxidative degradation of biorefinery lignin obtained after pretreatment of forest residues of Douglas Fir." Bioresource Technology 221 (December 2016): 394–404. http://dx.doi.org/10.1016/j.biortech.2016.09.040.

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9

Alvarez-Vasco, Carlos, Mond Guo, and Xiao Zhang. "Dilute Acid Pretreatment of Douglas Fir Forest Residues: Pretreatment Yield, Hemicellulose Degradation, and Enzymatic Hydrolysability." BioEnergy Research 8, no. 1 (2014): 42–52. http://dx.doi.org/10.1007/s12155-014-9496-7.

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10

Bloomberg, W. J., and G. Reynolds. "Equipment Trials for Uprooting Root-Rot-Infected Stumps." Western Journal of Applied Forestry 3, no. 3 (1988): 80–82. http://dx.doi.org/10.1093/wjaf/3.3.80.

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Abstract Root residues were measured following stump-root extraction 1 year after harvesting a 55-year-old Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) stand with 20% infestation of Phellinus weirii (Murr. Gilbertson) root rot. A D8 Cat, a 180-hp (large) backhoe, and a 115-hp (small) backhoe were each used to uproot stumps on 1.2-1.3 ha blocks. All treatments resulted in less than 10% of root volume remaining in the soil compared with pretreatment volumes calculated from dbh-root volume relationships on a similar site. Average numbers and lengths of root residues/m³ soil were significant

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Dissertations / Theses on the topic "Douglas fir – Residues"

1

Cline, Erica Theon. "Mycorrhizal fungus communities of Douglas-fir (Pseudotsuga menziesii) seedlings and trees : effects of proximity to residual trees /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/5557.

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2

Debruler, Daniel Gary. "Soil Carbon, Nutrients, and Phosphorus Fractions: Responses to Weed Control and Harvest Residual Retention in two 10-Year-Old Douglas-fir (Pseudotsuga menziesii) Stands of the Pacific Northwest." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/50486.

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Intensive forest management techniques such as whole-tree harvesting and use of herbicides to control weeds can have an effect on nutrient cycling and nutrient pool sizes in the mineral soil. This study was conducted to measure differences in soil carbon (C), nutrient pools, or phosphorus (P) fractions associated with harvest-intensity (bole-only vs. whole-tree harvest) and weed-control treatments (initial weed control vs. five years of annual weed control) after ten years. Soil C, nitrogen (N), and P, and exchangeable calcium (Ca), potassium (K), magnesium (Mg), and Hedley P fractions were m

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3

Zenner, Eric K. "Effects of residual trees on growth of young to mature Douglas- fir and western hemlock in the western central Oregon Cascades /." 1995. http://hdl.handle.net/1957/13627.

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Books on the topic "Douglas fir – Residues"

1

Ottmar, Roger D. Stereo photo series for quantifying forest residues in the Douglas-fir-hemlock type of the Willamette National Forest. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1990.

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2

Ottmar, Roger D. Stereo photo series for quantifying forest residues in coastal Oregon forests: Second-growth Douglas-fir--western hemlock type, western hemlock--Sitka spruce type, and red alder type. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, Siuslaw National Forest, 1989.

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3

D, Zabowski, Anderson T. D, and Pacific Northwest Research Station (Portland, Or.), eds. Early survival and height growth of Douglas-fir and lodgepole pine seedlings and variations in site factors following treatment of logging residues. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1992.

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4

Zenner, Eric K. Effects of residual trees on growth of young to mature Douglas-fir and western hemlock in the western central Oregon Cascades. 1995.

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5

Boyden, Michael. Predicting the Past. Leuven University Press, 2021. http://dx.doi.org/10.11116/9789461664310.

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Drawing from the social theories of Niklas Luhmann and Mary Douglas, Predicting the Past advocates a reflexive understanding of the paradoxical institutional dynamic of American literary history as a professional discipline and field of study. Contrary to most disciplinary accounts, Michael Boyden resists the utopian impulse to offer supposedly definitive solutions for the legitimation crises besetting American literature studies by “going beyond” its inherited racist, classist, and sexist underpinnings. Approaching the existence of the American literary tradition as a typically modern problem

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Conference papers on the topic "Douglas fir – Residues"

1

Butterman, Heidi C., and Marco J. Castaldi. "CO2 Enhanced Steam Gasification of Biomass Fuels." In 16th Annual North American Waste-to-Energy Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/nawtec16-1949.

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The current study involves an experimental investigation of the decomposition of various biomass feedstocks and their conversion to gaseous fuels such as hydrogen. The steam gasification process resulted in higher levels of H2 and CO for various CO2 input ratios. With increasing rates of CO2 introduced into the feed stream, enhanced char conversion and increased CO levels were observed. While CH4 evolution was present throughout the gasification process at consistently low concentrations, H2 evolution was at significantly higher levels though it was detected only at elevated gasification tempe

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2

Kumar, Ravi Ranjan, J. M. McDonough, M. P. Mengu¨c¸, and Illayathambi Kunadian. "Performance Comparison of Numerical Procedures for Efficiently Solving a Microscale Heat Transport Equation During Femtosecond Laser Heating of Nanoscale Metal Films." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-79542.

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An alternative discretization and solution procedure for implicitly solving a 3-D microscale heat transport equation during femtosecond laser heating of nanoscale metal films has been developed (Kunadian et al. [1]). The proposed numerical technique directly solves a single partial differential equation, unlike other techniques available in the literature which splits the equation into a system of two equations and then apply discretization. The present paper investigates performance of its split and unsplit methods of solution via numerical experiments using Gauss–Seidel, conjugate gradient,

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3

Martinez-Pastor, Juan, Patricio Franco, and Domingo Moratilla. "Experimental Analysis of NC Fibers Sedimentation After Dehydration Process in Propellant Production." In ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/esda2014-20399.

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During the manufacture of energetic materials, the dehydration process of nitrocellulose doughs provides a residual liquid mixture consisting of water, alcohol and nitrocellulose (NC) fibers. The separation of such fibers is required for distillation of alcohol, in order to make possible its reutilization in subsequent processes. In this work, an experimental analysis of sedimentation mechanisms of NC fibers contained in the fluid mixtures from nitrocellulose plants, is presented. The goal of the work is to obtain the time periods needed for complete sedimentation of these solid fractions (NC

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Reports on the topic "Douglas fir – Residues"

1

Ottmar, Roger D., Colin C. Hardy, and Robert E. Vihnanek. Stereo photo series for quantifying forest residues in the Douglas-Fir-Hemlock type of the Willamette National Forest. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1990. http://dx.doi.org/10.2737/pnw-gtr-258.

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2

Lopushlnsky, W., D. Zabowskl, and T. D. Anderson. Early survival and height growth of Douglas-fir and lodgepole pine seedlings and variations in site factors following treatment of logging residues. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1992. http://dx.doi.org/10.2737/pnw-rp-451.

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