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Academic literature on the topic 'Coarse woody debris'

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Published: 4 June 2021
Last updated: 30 July 2024

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Journal articles on the topic "Coarse woody debris"

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Kapitsa, Ekaterina A., Mariya A. Shorokhova, Elizaveta V. Morgun, Aleksandr A. Korepin, and Ekaterina V. Shorokhova. "Coarse Woody Debris in Primary and Secondary Middle Taiga Spruce Forests." Lesnoy Zhurnal (Forestry Journal), no. 3 (June 10, 2024): 92–106. http://dx.doi.org/10.37482/0536-1036-2024-3-92-106.

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Restoration of the pool of coarse woody debris after disturbances is one of the mechanisms for maintaining the stability of forest biogeocenoses. The studies of coarse woody debris have been carried out in the “Vepssky Forest” Reserve in the Leningrad Region on 8 sample plots established in primary forests (4 sample plots) and in secondary forests of the 1st generation after logging in 1973–1974 (4 sample plots), where the composition and structure of the stand, as well as the site conditions have been identical to those in primary forests. The coarse woody debris has been inventoried on transects. The stocks of coarse woody debris in primary stands have ranged from 104 to 233 m3 ha–1. Windfall and leaning trees have prevailed. The proportion of deadwood in both primary and secondary forests has been low. Clear cutting has significantly changed not only the stock of coarse woody debris, but also its distribution by decay classes and substrate categories. The stocks of coarse woody debris in secondary forests have ranged from 8 to 40 m3 ha–1, and have been mainly represented by stumps. The coarse woody debris of the 4th and 5th decay classes has almost been absent in primary forests, while in secondary forests the proportion of highly decomposed wood remaining after cutting has been about 50 %. The ratio of coarse woody debris and growing stocks has been on average 1:1 and 1:5 in the biogeocenoses of primary and secondary forests, respectively. The annual carbon balance of coarse woody debris (the difference in fluxes due to the loss of growing forest and the decay of coarse woody debris) has ranged from 0,40 to 2,80 t C ha–1 year–1, averaging 1,75 and 0,63 t C ha–1 year–1 in secondary and primary forests, respectively. The positive annual carbon balance in the coarse woody debris is due to the predominance of the rate of the loss of growing forest over the rate of the decay of coarse woody debris in primary forests as a result of wind disturbances and as a result of self-thinning of the stand in secondary forests.
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Nakamura, Futoshi, and Frederick J. Swanson. "Distribution of coarse woody debris in a mountain stream, western Cascade Range, Oregon." Canadian Journal of Forest Research 24, no. 12 (December 1, 1994): 2395–403. http://dx.doi.org/10.1139/x94-309.

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The distribution of coarse woody debris in a fifth-order Cascade Range (Oregon) stream system was examined from a geomorphic point of view. The number, volume, location, orientation, decay class, and pool formation roles of coarse woody debris were investigated. The processes of coarse woody debris production, transport, and storage, which vary with channel and valley floor geomorphology, are responsible for the pattern of coarse woody debris distribution on valley floors. Channel width and sinuosity are the main factors that control production, storage sites, and hydrologic effects of coarse woody debris. The amount of coarse woody debris and the number of pool-forming pieces are relatively high in wide, sinuous reaches, where a complex structure of floodplains and riparian forests develops in association with a braided channel pattern. These relations are transferable to other systems with similar relations of coarse woody debris piece length to channel width.
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Muller, Robert N., and Yan Liu. "Coarse woody debris in an old-growth deciduous forest on the Cumberland Plateau, southeastern Kentucky." Canadian Journal of Forest Research 21, no. 11 (November 1, 1991): 1567–72. http://dx.doi.org/10.1139/x91-218.

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Volume and mass of coarse woody debris (> 20 cm diameter) in an old-growth forest on the Cumberland Plateau in southeastern Kentucky averaged 66.3 m3/ha and 21.8 Mg/ha, respectively. Coarse woody debris was patchily distributed among 80 sample plots (0.04 ha each), with 10 plots containing 39% of the total mass. Coarse woody debris mass was inversely, although not strongly, related to plot basal area. While 23 species contributed to the accumulation of coarse woody debris, five accounted for 72% of the total mass. These included Quercusprinus L. (25% of the total), Fagusgrandifolia L. (16%), Quercusalba L. (12%), Castaneadentata (Marsh.) Borkh. (11%), and Quercusvelutina Lam. (9%). The few studies of coarse woody debris in old-growth deciduous forests of North America suggest a regional pattern of accumulation correlated with temperature. In warmer regions, old-growth deciduous forests accumulate a mass in the range of 22–32 Mg/ha, while in cooler ecosystems, coarse woody debris ranges from 34 to 49 Mg/ha.
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Horn, Scott, and James L. Hanula. "Relationship of Coarse Woody Debris to Arthropod Availability for Red-Cockaded Woodpeckers and Other Bark-Foraging Birds on Loblolly Pine Boles." Journal of Entomological Science 43, no. 2 (April 1, 2008): 153–68. http://dx.doi.org/10.18474/0749-8004-43.2.153.

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This study determined if short-term removal of coarse woody debris would reduce prey available to red-cockaded woodpeckers (Picoides borealis Vieillot) and other bark-foraging birds at the Savannah River Site in Aiken and Barnwell counties, SC. All coarse woody debris was removed from four 9-ha plots of mature loblolly pine (Pinus taeda L.) in 1997 and again in 1998. We sampled arthropods in coarse woody debris removal and control stands using crawl traps that captured arthropods crawling up tree boles, burlap bands wrapped around trees, and cardboard panels placed on the ground. We captured 27 orders and 172 families of arthropods in crawl traps whereas 20 arthropod orders were observed under burlap bands and cardboard panels. The most abundant insects collected from crawl traps were aphids (Homoptera: Aphididae) and ants (Hymenoptera: Formicidae). The greatest biomass was in the wood cockroaches (Blattaria: Blattellidae), caterpillars (Lepidoptera) in the Family Noctuidae, and adult weevils (Coleoptera: Curculionidae). The most common group observed underneath cardboard panels was Isoptera (termites), and the most common taxon under burlap bands was wood cockroaches. Overall, arthropod abundance and biomass captured in crawl traps was similar in control and removal plots. In contrast, we observed more arthropods under burlap bands (mean ± SE; 3,021.5 ± 348.6, P = 0.03) and cardboard panels (3,537.25 ± 432.4, P = 0.04) in plots with coarse woody debris compared with burlap bands (2325 ± 171.3) and cardboard panels (2439.75 ± 288.9) in plots where coarse woody debris was removed. Regression analyses showed that abundance beneath cardboard panels was positively correlated with abundance beneath burlap bands demonstrating the link between abundance on the ground with that on trees. Our results demonstrate that short-term removal of coarse woody debris from pine forests reduced overall arthropod availability to bark-foraging birds.
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Dai, Zhaohua, Carl C. Trettin, Andrew J. Burton, Martin F. Jurgensen, Deborah S. Page-Dumroese, Brian T. Forschler, Jonathan S. Schilling, and Daniel L. Lindner. "Coarse woody debris decomposition assessment tool: Model development and sensitivity analysis." PLOS ONE 16, no. 6 (June 4, 2021): e0251893. http://dx.doi.org/10.1371/journal.pone.0251893.

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Coarse woody debris (CWD) is an important component in forests, hosting a variety of organisms that have critical roles in nutrient cycling and carbon (C) storage. We developed a process-based model using literature, field observations, and expert knowledge to assess woody debris decomposition in forests and the movement of wood C into the soil and atmosphere. The sensitivity analysis was conducted against the primary ecological drivers (wood properties and ambient conditions) used as model inputs. The analysis used eighty-nine climate datasets from North America, from tropical (14.2° N) to boreal (65.0° N) zones, with large ranges in annual mean temperature (26.5°C in tropical to -11.8°C in boreal), annual precipitation (6,143 to 181 mm), annual snowfall (0 to 612 kg m-2), and altitude (3 to 2,824 m above mean see level). The sensitivity analysis showed that CWD decomposition was strongly affected by climate, geographical location and altitude, which together regulate the activity of both microbial and invertebrate wood-decomposers. CWD decomposition rate increased with increments in temperature and precipitation, but decreased with increases in latitude and altitude. CWD decomposition was also sensitive to wood size, density, position (standing vs downed), and tree species. The sensitivity analysis showed that fungi are the most important decomposers of woody debris, accounting for over 50% mass loss in nearly all climatic zones in North America. The model includes invertebrate decomposers, focusing mostly on termites, which can have an important role in CWD decomposition in tropical and some subtropical regions. The role of termites in woody debris decomposition varied widely, between 0 and 40%, from temperate areas to tropical regions. Woody debris decomposition rates simulated for eighty-nine locations in North America were within the published range of woody debris decomposition rates for regions in northern hemisphere from 1.6° N to 68.3° N and in Australia.
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Copoț, Ovidiu, and Cătălin Tănase. "Substrate properties, forest structure and climate influences wood-inhabiting fungal diversity in broadleaved and mixed forests from Northeastern Romania." Forest Systems 29, no. 3 (December 29, 2020): e021. http://dx.doi.org/10.5424/fs/2020293-16728.

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Aim of the study: The main objective of this study was to find the factors which best explains the wood-inhabiting fungal species’ richness in beech and oak-dominated forests.Area of study: We focused on broadleaved and mixed forests found in Northeastern Romania.Materials and methods: 59 plots were randomly set up in broadleaved and mixed forest stands, in which vegetation structure, composition, and topoclimatic factors were quantified along with wood-inhabiting fungal richness. Generalized linear models were used to characterize relationship between fungal diversity and biotic and abiotic factors.Main results: 374 taxa were identified, with numerous species found to cohabitate, the highest sharing being between Fine Woody Debris and Downed Coarse Woody Debris. The best predictors of total diversity were related to the substrate, management, stand structure, and macroclimate. Higher volumes of logs and large branches in various decay stages increased fungal richness. The same effect was found in diverse forests, with large snags. Macroclimate and topoclimate positively influenced diversity, through De Martonne Aridity Index and snow cover length, both indicating macrofungi preferences for higher moisture of substrate. Silvicultural interventions had an ambivalent effect to fungal diversity, phenomenon observed through stump numbers and proportion.Research highlights: Particular environmental characteristics proved significantly important in explaining different wood-inhabiting fungal richness patterns. Substrate-related variables were the most common ones found, but they were closely linked to climate and forest stand variables.Keywords: Wood-inhabiting fungi; oak, beech and coniferous forests; substrate diversity; dead wood types; coarse woody debris; fine woody debris; climatic variables.Abbreviations used:ALT, elevation; ASPI, Aspect Index; BIO1, mean annual temperature; BIO4, temperature seasonality; BIO7, annual temperature range; BIO12, annual precipitation; BIO15, precipitation seasonality; CWD, coarse woody debris; DBH, diameter at breast height; DCWD, downed coarse woody debris; DCWD_DECAY, DCWD decay diversity; DCWD_DIV, DCWD taxonomic diversity; DCWD_SV, surface-volume ratio of DCWD; DCWD_VOL, DCWD volume; DMAI, De Martonne Aridity Index; DMAI_AU, Autumn DMAI; DMAI_SP, Spring DMAI; DMAI_SU, Summer DMAI; DMAI_WI, Winter DMAI; FAI, Forestry Aridity Index; FWD, fine woody debris; L_SNAG_BA, large snag basal area; OLD_BA, basal area of old trees; POI, Positive Openness Index; RAI, Recent Activity Index; SCL, snow cover length; SLOPE, slope; SNAG_N, snag density; STUMP_N, stump density; TPI, Topographic Position Index; TREE_BA, mean basal area of trees; TREE_DIV, tree' Shannon diversity.
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Stewart, Glenn H., and Larry E. Burrows. "Coarse woody debris in old-growth temperate beech (Nothofagus) forests of New Zealand." Canadian Journal of Forest Research 24, no. 10 (October 1, 1994): 1989–96. http://dx.doi.org/10.1139/x94-255.

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The volume, biomass, and carbon and nitrogen content of coarse woody debris were measured on three 1-ha reference plots in old-growth Nothofagusfusca (Hook. f.) Oerst.–Nothofagusmenziesii (Hook. f.) Oerst. forest on the South Island of New Zealand. Two decay sequences for logs and one for standing dead trees (snags) were recognised from two-way indicator species analysis (TWINSPAN) of up to 30 variables related to physical characteristics and structural integrity. Wood volume (up to 800 m3•ha−1) and biomass were high (up to 300 Mg•ha−1), and the inside-out decay sequence from heartwood to sapwood was unusual compared with that of other temperate hardwood forests. Coarse woody debris represented significant carbon and nitrogen pools, with ca. 150 Mg•ha−1 and 370 kg•ha−1, respectively, in one stand. The coarse woody debris component of these broad-leaved evergreen hardwood forests was much higher than that reported for other temperate hardwood forests and approaches that of many northern hemisphere conifer forests. The large coarse woody debris pools are discussed in relation to live stand biomass, natural disturbances and tree mortality, and decomposition processes.
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Bessaad, Abdelwahab, Isabelle Bilger, and Nathalie Korboulewsky. "Assessing Biomass Removal and Woody Debris in Whole-Tree Harvesting System: Are the Recommended Levels of Residues Ensured?" Forests 12, no. 6 (June 18, 2021): 807. http://dx.doi.org/10.3390/f12060807.

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Forest biomass is a sustainable source of renewable energy and a valuable alternative to finite fossil fuels. However, its overharvesting may lead to soil nutrient depletion and threaten future stand productivity, as well as affect the habitat for biodiversity. This paper provides quantitative data on biomass removal, fine woody debris [d ≤ 7 cm], and coarse woody debris [d > 7 cm] left on the forest floor in whole tree harvesting systems. Using tree allometric equations and inventory field methods for woody debris estimation, we assessed biomass removal on nine fuelwood harvesting sites in Central France, as well as fine and coarse woody debris left on the sites. The aboveground biomass estimates showed a high variability between the studied sites, it varied between 118 and 519 Mg ha−1. However, less variability was found among sites managed as coppice-with-standards 174 ± 56 Mg ha−1. Exported biomass was 107 ± 42 Mg ha−1 on average, including 35 ± 9% of fine wood. The amounts of both fine and coarse woody debris left on sites were generally less than 10% of the total harvested biomass in 2/3 of the studied sites. These amounts are lower than the minimum retention levels recommended by the sustainable forest biomass harvesting guidelines. Therefore, more technical effort and additional management measures should be taken to ensure more woody debris, especially in poor forest soils and thus, to guarantee a sustainable biomass harvesting.
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Hess, George R., and Dale Zimmerman. "Woody Debris Volume on Clearcuts With and Without Satellite Chip Mills." Southern Journal of Applied Forestry 25, no. 4 (November 1, 2001): 173–77. http://dx.doi.org/10.1093/sjaf/25.4.173.

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Abstract During public forums on the ecological impacts of satellite wood chip mills in North Carolina, environmentalists and hunters stated that less downed woody debris is left on sites harvested with a satellite chip mill component than on sites without a chip mill component. We conducted a pilot study to obtain preliminary evidence of differences in the volume and spatial distribution of downed woody debris between sites harvested with and without a satellite chip component. We used a transect method to estimate the volume of woody debris on seven harvest sites: four with and three without a satellite wood chip component. The mean volume of fresh coarse downed woody debris (≥;10 cm diameter), fresh downed woody debris (≥;2.5 cm diameter), and total downed woody debris (≥;2.5 cm diameter) was lower on sites harvested with a satellite chip mill component than on sites harvested without a satellite chip component. On all sites, debris was found in clusters rather than spread evenly across the site. The consensus among forest ecologists is that downed woody debris promotes biodiversity and facilitates ecological processes and that more woody debris is almost always better than less. South. J. Appl. For. 25(4):173–177.
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Young, Michael K. "Movement and characteristics of stream-borne coarse woody debris in adjacent burned and undisturbed watersheds in Wyoming." Canadian Journal of Forest Research 24, no. 9 (September 1, 1994): 1933–38. http://dx.doi.org/10.1139/x94-248.

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Following fire, changes in streamflow and bank stability in burned watersheds can mobilize coarse woody debris. In 1990 and 1991, I measured characteristics of coarse woody debris and standing riparian trees and snags in Jones Creek, a watershed burned in 1988, and in Crow Creek, an unburned watershed. The mean diameter of riparian trees along Jones Creek was less than that of trees along Crow Creek, but the coarse woody debris in Jones Creek was greater in mean diameter. Tagged debris in Jones Creek was three times as likely to move, and moved over four times as far as such debris in Crow Creek. In Jones Creek, the probability of movement was higher for tagged pieces that were in contact with the stream surface. Larger pieces tended to be more stable in both streams. It appears that increased flows and decreased bank stability following fire increased the transport of coarse woody debris in the burned watershed. Overall, debris transport in Rocky Mountain streams may be of greater significance than previously recognized.
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Dissertations / Theses on the topic "Coarse woody debris"

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Schmid, Amy V. "Coarse Woody Debris and the Carbon Balance of a Moderately Disturbed Forest." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/3777.

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Landscapes are comprised of multiple ecosystems shaped by disturbances varying in severity and source. Moderate disturbance from weather, pathogens, insects, and age-related senescence, in contrast to severe disturbances that fell trees, may increase standing woody debris and alter the contribution of coarse woody debris (CWD) to total ecosystem respiration (RE). However, woody debris dynamics are rarely examined following moderate disturbances that substantially increase standing dead wood stocks. We used an experimental manipulation of moderate disturbance in an upper Great Lakes forest to: 1) examine decadal changes in CWD stocks through a moderate disturbance; 2) quantify in situ CWD respiration during different stages of decay for downed and standing woody debris and; 3) estimate the annual contribution of CWD respiration to the ecosystem C balance through comparison with RE and net ecosystem production (NEP). We found that the standing dead wood mass of 24.5 Mg C ha-1 was an order of magnitude greater than downed woody debris stocks and a large source of ecosystem C flux six years following disturbance. Instantaneous in situ respiration rates from standing and downed woody debris in the earliest stages of decay were not significantly different from one another. Independently derived estimates of ecosystem CWD respiration of 1.1to 2.1 Mg C ha-1 yr-1 six years following disturbance were comparable in magnitude to NEP and 12.5 % to 23.8 % of RE, representing a substantial increase relative to pre-disturbance levels. Ecosystem respiration and NEP were stable following moderate disturbance even though ecosystem CWD respiration increased substantially, suggesting a reduction in the respiratory C contribution from other sources. We conclude that CWD is an essential component of the ecosystem C balance following a moderate forest disturbance.
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Corrow, Allissa. "DOUBLE SAMPLING FOR COARSE WOODY DEBRIS ESTIMATIONS FOLLOWING LINE INTERSECT SAMPLING." The University of Montana, 2010. http://etd.lib.umt.edu/theses/available/etd-06122010-133739/.

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Coarse woody debris (CWD), an essential component of healthy forests, has typically been defined as dead and down, large woody material. Quantification of this resource provides a useful metric for assessing wildlife habitat, fuel loading, and more recently, carbon sequestration. Although many CWD sampling methods exist, accurate estimation is difficult and expensive. Double sampling incorporates auxiliary data that is positively correlated with the attribute of interest as a means of reducing sampling costs and/or increasing estimation precision. The present study investigated double sampling applications to the common CWD sampling technique, line intersect sampling (LIS). We identified aggregate length as a potential auxiliary variable for estimating aggregate volume and abundance of CWD. However, further analysis indicated that the cost difference of the sampling phases, coupled with the correlation of the variables was not sufficient to warrant double sampling in the study area. Further investigation is needed to develop accurate and efficient CWD sampling methods with widespread applicability.
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Woods, Michaela J. "Lonicera maackii alters decay dynamics of coarse woody debris." Wright State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=wright1544793080360437.

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Swanson, Mark Ellyson. "Measurement and modeling of the forest carbon resource in the Nothofagus forests of Tierra del Fuego, Chile /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/5491.

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Latterell, Joshua J. "The natural history and dynamics of large wood in the Queets River, Washington /." Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/5273.

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Boldor, Irina Angelica. "An assessment of the representation of fire severity and coarse woody debris dynamics in an ecosystem management model." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/914.

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Fire is the most significant natural disturbance agent in the MSdm biogeoclimatic subzone and has a determinant role in the dynamics of lodgepole pine (Pinus contorta ssp. latifolia Engelm.ex S.Wats.) dominated forests. Fire severity is a controversial term that usually refers to a qualitative measure of the fire effects on soil and vegetation and ultimately on ecosystem sustainability. The main objective of the thesis was to evaluate methods for quantifying and modelling the effects of fire severity on live biomass and dead organic matter and post-fire coarse woody debris (CWD) dynamics. A review of the representation of fire in models was conducted and several of the most commonly used fire models in North America have been described in terms of fire severity representation. The potential for developing the fire severity concept as a fire effects descriptor in an ecosystem management model were assessed. Severity matrices summarizing the probabilities of occurrence for fires of varying severity were constructed for two sites in the MSdm biogeoclimatic subzone of British Columbia, using weather data and past fire records. These matrices provide information to improve fire representation in the ecosystem based model FORECAST by quantifying the effects of fire severity on dead and live biomass components. Although this represents only a preliminary step, the severity matrix approach appears toprovide a viable methodology for improving the representation of fire effects in FORECAST. Patterns of post-fire coarse woody debris (CWD) accumulation were also assessed in the context of model development. Data were collected from a chronosequence of fire affected sites in the MSdm subzone of the TFL 49 Kelowna. The ability of the FORECAST model to simulate accumulation patterns in CWD and soil organic matter and nitrogen following fire was tested by comparing model outputs with field data. The evaluation of the model against chronosequence-derived data highlighted the fact that caution needs to be taken when using such data for model testing. The very slow recruitment pattern for new CWD illustrates the need to retain sources of CWD recruitment following fire by not salvage logging all killed trees and/or surviving live trees.
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Davis, Jessica G. "Spatiotemporal dynamics of coarse woody debris in a topographically complex, old-growth, deciduous forest." University of Dayton / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1405199554.

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Fox, Martin J. "Spatial organization, position, and source characteristics of large woody debris in natural systems /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/5463.

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Bold, Richard P. "Influence of coarse woody debris dams on leaf litter dynamics in U.K.headwater streams." Thesis, Coventry University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251857.

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Biswas, Suparna. "Coarse Woody Debris Pools and Fluxes in a Northern Deciduous Forest, Michigan, USA." The Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=osu1395841859.

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Books on the topic "Coarse woody debris"

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Ganey, Joseph L. Coarse woody debris assay in nothern Arizona mixed-conifer and ponderosa pine forests. Fort Collins, CO: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2010.

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T, Graham Russell, and Intermountain Research Station (Ogden, Utah), eds. Managing coarse woody debris in forests of the Rocky Mountains. Ogden, UT (324 25th St., Ogden 84401): U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1994.

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Lassettre, Neil S. Process based management of large woody debris at the basin scale, Soquel Creek, California: Report presented to California Dept. of Forestry and Fire Protection and Soquel Demonstration State Forest. [Sacramento, Calif.]: State of California, California Dept. of Forestry and Fire Protection, 2003.

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May, Christine. The importance of wood in headwater streams of the Oregon Coast Range. Corvallis, OR: U.S. Geological Survey, [Forest and Rangeland Ecosystem Science Center], 2004.

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Wells, R. W. Coarse woody debris in chronosequences of forests on southern Vancouver Island. Victoria: Pacific Forestry Centre, 1997.

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Wallerstein, N. P. An experimental study of alluvial channel response to large woody debris. Oxford, Mississippi: Channel & Watershed Processes Research Unit, National Sedimentation Laboratory, 1999.

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Brown, James K. Coarse woody debris: Managing benefits and fire hazard in the recovering forest. Fort Collins, CO: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2003.

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K, Brown James. Coarse woody debris: Managing benefits and fire hazard in the recovering forest. [Ogden, Utah]: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2003.

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Symposium on the Ecology and Management of Dead Wood in Western Forests (1999 Reno, Nev.). Proceedings of the Symposium on the Ecology and Management of Dead Wood in Western Forests: November 2-4, 1999, Reno, Nevada. Albany, Calif: U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Research Station, 2002.

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J, Grove Simon, Hanula James L. 1955-, United States. Forest Service. Southern Research Station., and International Congress of Entomology (22nd : 2004 : Brisbane, Qld.), eds. Insect biodiversity and dead wood: Proceedings of a symposium for the 22nd International Congress of Entomology. Asheville, NC: U.S. Dept. of Agriculture, Forest Service, Southern Research Station, 2006.

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Book chapters on the topic "Coarse woody debris"

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Keddy, Paul A. "Coarse Woody Debris." In Causal Factors for Wetland Management and Restoration: A Concise Guide, 131–34. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-21788-3_12.

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Ståhl, Göran, and Tomas Lämås. "Assessment of Coarse Woody Debris." In Assessment of Biodiversity for Improved Forest Planning, 241–48. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-015-9006-8_22.

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Fraver, Shawn, Tuomas Aakala, and Anthony W. D’Amato. "Dendroecological Applications to Coarse Woody Debris Dynamics." In Ecological Studies, 159–81. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-61669-8_7.

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Monleon, Vicente J., Alix I. Gitelman, and Andrew N. Gray. "Multi-scale Relationships Between Coarse Woody Debris and Presence/Absence of Western Hemlock in the Oregon Coast Range." In Case Studies in Bayesian Statistics, 311–18. New York, NY: Springer New York, 2002. http://dx.doi.org/10.1007/978-1-4612-2078-7_16.

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"Coarse Woody Debris." In Encyclopedia of Wildfires and Wildland-Urban Interface (WUI) Fires, 103. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-52090-2_300049.

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Sass, G. G. "Coarse Woody Debris in Lakes and Streams." In Encyclopedia of Inland Waters, 60–69. Elsevier, 2009. http://dx.doi.org/10.1016/b978-012370626-3.00221-0.

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HARMON, M. E., J. F. FRANKLIN, F. J. SWANSON, P. SOLLINS, S. V. GREGORY, J. D. LATTIN, N. H. ANDERSON, et al. "Ecology of Coarse Woody Debris in Temperate Ecosystems." In Advances in Ecological Research, 59–234. Elsevier, 2004. http://dx.doi.org/10.1016/s0065-2504(03)34002-4.

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Harmon, M. E., J. F. Franklin, F. J. Swanson, P. Sollins, S. V. Gregory, J. D. Lattin, N. H. Anderson, et al. "Ecology of Coarse Woody Debris in Temperate Ecosystems." In Advances in Ecological Research, 133–302. Elsevier, 1986. http://dx.doi.org/10.1016/s0065-2504(08)60121-x.

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"15. Forest Gardens: The Lessons of Coarse Woody Debris." In Landscaping Ideas of Jays, 115–24. University of California Press, 2007. http://dx.doi.org/10.1525/9780520940178-017.

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McComb, William C. "Ecology of coarse woody debris and its role as habitat for mammals." In Mammal Community Dynamics, 374–404. Cambridge University Press, 2003. http://dx.doi.org/10.1017/cbo9780511615757.012.

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Conference papers on the topic "Coarse woody debris"

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STRAUPE, Inga, and Līga LIEPA. "AN ASSESSMENT OF RETENTION TREES IN HYLOCOMIOSA FOREST TYPE IN SOUTHERN LATVIA." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.111.

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In Latvia the forest legislation requires that at least five living trees must be retained per hectare after clear-cutting. It is known that retention trees significantly increase the biodiversity in production forest landscape. After clear-cutting retention trees function as habitats for various lichens, mosses, insects, fungi and birds. Over time retention trees are incorporated into the young forests stand and provide presence of old trees, which is necessary for many endangered and rare species. After the death, these trees turn into coarse woody debris which is an essential habitat and feeding source for many taxa. However, the conservation and mortality of the retention trees has not been studied extensively because this approach has been established recently. The aim of this study was to evaluate development of the retention trees in Hylocomiosa type of forests in Southern Latvia. In total 12 young forest stands were surveyed in 2009 and 2015. The total area – 13.7 ha, on average forest stand size varies from 0.5 to 3.0 ha. All the studied sites were harvested in 2002, 2004, 2006 and 2008. All measurements of tree species, height, and diameter and defoliation class assessed and the status of tree (growing tree, coarse woody debris – snags, stems and downed logs) was indicated. Results show that after the studied period of seven years 24 retention trees died. Average level of the tree mortality is 15 %. The mortality level of Scots pine retention trees is 5.8 %, for aspen – 50 % and that for birch – 92.3 %. An average it is 8.5 green retention trees per 1 ha of young stand (22.9 m3 ha-1). On average 2.3 pieces coarse woody debris are per 1 ha of young stand (3.52 m3 ha-1), mostly - aspen wood (2.4 m3 ha-1). Woody debris of the young stands is divided to the first 4 decay levels according to classification (Stokland et al., 2001). 50 % of the listed woody debris is related to the 3rd decay level which means that woody debris is moderately decomposed.
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Fukasawa, Yu, Yoko Ando, Satoshi Suzuki, Yoshitaka Oishi, Kimiyo Matsukura, Kunihiro Okano, and Zewei Song. "A long-term impact of forest disturbance on spruce seedling regeneration on coarse woody debris." In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/107752.

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Bartlett, Claire, and Alexander K. Stewart. "ANALYSIS OF COARSE-WOODY DEBRIS IN FOUR ADIRONDACK MOUNTAIN CATCHMENTS: POTENTIAL IMPLICATIONS FOR PALAEOCLIMATE WORK." In GSA 2020 Connects Online. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020am-357678.

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Pavlik, Martin, Marek Dzurenko, and Martin Pavlik JR. "MYCORESTORATION � OVERVIEW OF THE POSSIBILITIES OF USING FUNGI IN COMMUNAL ENVIRONMENTS." In 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022/5.1/s20.040.

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The increase in human population brings an increase in consumption, higher pressure in often limited space and growth of waste, particularly in communal environments. Out of the huge volume of communal waste, a portion is composed of biologically degradable and other waste, that could be recycled utilizing eco-friendly means � e.g. fungal activity. This includes plant waste from gardens, yards, parks, orchards and forests, or plant debris not utilized by other ecologically and economically useful means. In this contribution, we present results obtained by inoculation of woody and herbaceous waste by the fungus Pleurotus ostreatus (Jacq.) P. Kumm. Appropriate means of inoculation resulted in faster, more efficient and near-natural decomposition of woody debris after felling � tree stumps, coarse and fine parts of trunks and branches, as well as a mix of wood, bark and other substrates, including ash after burning of wood. Based on a detailed economical assessment, it was demonstrated that production of oyster mushroom fruiting bodies obtained via decomposition of woody waste material may provide significant financial gain. Preliminary results corroborate the presumption of the oyster mushroom�s ability to eliminate negative environmental impacts of ash generated in heat production. Mycelial filaments are able to mechanically bind ash particles, decompose some of its components into a near-natural form, and absorb heavy metals, ultimately resulting in soil purification. Thus, near-natural utilization of various species of lignicolous fungi for the decomposition of unused parts of natural products may prove useful for both humans and nature.
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Evgrafova, Liudmila. "EXPERIMENTAL ASSESSMENT OF GREENHOUSE GASSES EMISSION (CO2, CH4) FROM DECOMPOSED COARSE WOODY DEBRIS IN NORTHERN TAIGA FORESTS OF CENTRAL SIBERIA." In 17th International Multidisciplinary Scientific GeoConference SGEM2017. Stef92 Technology, 2017. http://dx.doi.org/10.5593/sgem2017/32/s14.107.

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Booth, Adam M., Christian Sifford, Cora Siebert, and Brian Buma. "COARSE WOOD INHIBITS DEBRIS FLOW RUNOUT IN FORESTED SOUTHEAST ALASKA." In 115th Annual GSA Cordilleran Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019cd-329561.

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"A Study on Sustainable Reutilization of C&D Debris in the Construction of Traffic Barrier." In Recent Advancements in Geotechnical Engineering. Materials Research Forum LLC, 2021. http://dx.doi.org/10.21741/9781644901618-14.

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Abstract. In India, the construction industry is growing at twice the world average. This leads to a significant accumulation of C&D waste. This typically includes asphalt, steel, concrete, bricks, wood and other building materials. It is estimated on a conservative basis that over 25-30 million tons of C&D waste is generated which clogs rivers, blocks traffic and occupies land / agricultural space which in turn creates pollution, solid waste production, discharge of dust and gas and leads to additional utilization of natural resources including non-renewable resources, thereby depleting the available resources. Only little amount of construction and demolition concrete debris is recycled or reused. Construction and demolition waste generation and handling issues are being focused to achieve sustainable goals. Based on this study, experimental investigations are carried out to evaluate the material properties and to study the strength characteristics and effect of partial replacement (20 %, 30 % and 40 %) of both fine and coarse aggregate obtained from construction and demolition waste (CDW) in the construction of intermediate road traffic concrete barriers.
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Rainio, Aku, Vinod Sharma, Markus Bolha`r-Nordenkampf, Christian Brunner, Johannes Lind, and John Crosher. "Fluidized Bed Technologies for Biomass Combustion." In ASME 2009 Power Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/power2009-81052.

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Biomass, a renewable fuel source for generating energy, is available in large quantities in the USA. Typical biomass consists of wood chips, construction and demolition wood, bark, residual logging debris, saw dust, paper rejects, and paper and sewage sludge. Composition and moisture content of biomass vary greatly and affect its heating value. There are several combustion technologies available to generate power from biomass. Fluidized bed boilers are preferred, because of their ability to burn a wide variety of biomass fuels while achieving high combustion efficiency and low emissions. This paper discusses basic design and operation features of bubbling (BFB) and circulating fluidized bed (CFB) boilers, both offering high fuel flexibility. In fluidized bed combustion, reactive biomass fuels are almost completely burned out because of close contact between the hot bed material and the fuel. In advanced BFB and CFB boilers, an open bottom design is used for ash and coarse material removal through the fluidizing air distribution system. This allows combustion of fuels containing large inert particles, such as rocks and metal pieces. If limestone is added to the bed, SO2 emissions are reduced. By using ammonia or urea in high temperature areas, NOx emissions are reduced. In order to achieve very low emissions, back-end flue gas treatment for SO2, NOx, HCl, HF, and Hg is required. To treat flue gases, several technologies can be used — such as activated carbon and sodium bicarbonate or Trona injection, Turbosorp® circulating dry scrubber, and SCR. Normally the preferred particulate matter cleaning device is a baghouse since the filter cake allows further reactions between pollutants and sorbents. Different fluidized bed designs are shown and recommended for various biomass fuels. This paper describes design, fuels, and emissions for an advanced BFB boiler producing steam at a rate of 230,000 lb/hr/930 psig/860°F (29.0 kg/s/64 barg/460°C).
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Bekova, Radoslava. "ASSESSING MARINE LITTER AT KAMCHIYA-SHKORPILOVTSI BEACH: A COMPREHENSIVE ANALYSIS OF ABUNDANCE, DENSITY AND COMPOSITION." In 23rd SGEM International Multidisciplinary Scientific GeoConference 2023. STEF92 Technology, 2023. http://dx.doi.org/10.5593/sgem2023/5.1/s20.05.

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Marine litter is a significant and growing environmental problem with global implications, affecting oceans and seas. This study analyzes marine litter's composition and density, specifically at Kamchiya-Shkorpilovtsi, the longest beach on the Bulgarian Black Sea coast. The monitoring period from 2018 to 2022 covers an area of 7645 m2. To effectively study the area, it was divided into four monitoring transects: Kamchiya- Mouth, Kamchiya-South (Novo Oryahovo Beach), Shkorpilovtsi, and Shkorpilovtsi- South. During the study, a DJI Phantom RTK was utilized to create a high-resolution raster orthomosaic, aiding in identifying marine litter (ML). A total of 8892 items were identified and classified into eight categories: "Artificial polymer materials" (81.94% of total items), "Rubber" (0.74%), "Cloth/Textile" (0.72%), "Paper/Cardboard" (8.37%), "Processed wood" (1.79%), "Metal" (2.87%), "Glass/Ceramics" (3.19%), and "Unidentified" (0.38%). The density of litter was estimated to be 0.24 items per square meter. In terms of abundance, the highest count of ML was recorded in 2021, with 3250 items, which coincided with the pandemic situation in Bulgaria. Throughout the monitoring period, artificial polymer materials constituted the majority, accounting for 82% of the litter. The most prevalent types of marine beach litter were cigarette butts, plastic and polystyrene fragments, industrial packaging, plastic cups and rings, as well as beach-related cosmetic bottles and containers like sunblocks, nets, and net pieces. The cleanliness of Kamchiya-Shkorpilovtsi Beach was assessed using the Clean Coast Index, which classified it as "Clean" with a score of 4.77. Additionally, this study introduced the Plastic Abundance Index (PAI) as a comprehensive measure to evaluate pollution caused by marine debris. The results of the PAI analysis yielded a value of 1.49, classifying Kamchiya-Shkorpilovtsi beach as falling into the "Moderate" type in terms of the number of plastic items in sampling units. This indicates a significant presence of plastics in the beach environment.
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Reports on the topic "Coarse woody debris"

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McWinn, James W., and D. A. Crossley. Biodiversity and Coarse Woody Debris in Southern Forests. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station, 1996. http://dx.doi.org/10.2737/se-gtr-094.

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McWinn, James W., and D. A. Crossley. Biodiversity and Coarse Woody Debris in Southern Forests. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station, 1996. http://dx.doi.org/10.2737/se-gtr-94.

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Graham, Russell T., Alan E. Harvey, Martin F. Jurgensen, Theresa B. Jain, Jonalea R. Tonn, and Deborah S. Page-Dumroese. Managing coarse woody debris in forests of the Rocky Mountains. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station, 1994. http://dx.doi.org/10.2737/int-rp-477.

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Brown, James K., Elizabeth D. Reinhardt, and Kylie A. Kramer. Coarse woody debris: Managing benefits and fire hazard in the recovering forest. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2003. http://dx.doi.org/10.2737/rmrs-gtr-105.

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Ganey, Joseph L., and Scott C. Vojta. Coarse woody debris assay in northern Arizona mixed-conifer and ponderosa pine forests. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2010. http://dx.doi.org/10.2737/rmrs-rp-80.

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Adams, M. B., and D. R. Owens. Specific gravity of coarse woody debris for some central Appalachian hardwood forest species. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station, 2001. http://dx.doi.org/10.2737/ne-rp-716.

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McCay, T. S., B. T. Forschler, M. J. Komoroski, and W. M. Ford. Responses of Mammalian Insectivores, Amphibians, and Reptiles to Broad-Scale Manipulation of Coarse Woody Debris. Office of Scientific and Technical Information (OSTI), March 2002. http://dx.doi.org/10.2172/807842.

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Mcdonald, Shannon. Understory Diversity and Succession on Coarse Woody Debris in a Coastal, Old-growth Forest, Oregon. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.1045.

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Brown, Martin J., Jane Kertis, and Mark H. Huff. Natural tree regeneration and coarse woody debris dynamics after a forest fire in the western Cascade Range. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2013. http://dx.doi.org/10.2737/pnw-rp-592.

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McCay Timothy, S., James, L. Hanula, Susan, C. Loeb, Steven, M. Lohr, James, W. McMinn, and D. Wright-Miley. Bret. The role of coarse woody debris in southeastern pine forests; preliminary results from a large-scale experiment. Office of Scientific and Technical Information (OSTI), August 2002. http://dx.doi.org/10.2172/835556.

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