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Lonicera Maackii Alters Decay Dynamics Of Coarse Woody Debris
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Book Synopsis Lonicera Maackii Alters Decay Dynamics of Coarse Woody Debris by : Michaela J. Woods
Download or read book Lonicera Maackii Alters Decay Dynamics of Coarse Woody Debris written by Michaela J. Woods and published by . This book was released on 2018 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since industrialization, anthropogenic carbon emissions have led to excess atmospheric carbon dioxide that may alter the stability of ecosystem processes. Microorganisms are essential in mitigating excess carbon and play a notable role in the breakdown of organic material. This process, decomposition, is essential in forested ecosystems where microorganisms can recycle nutrients and store carbon in soil organic matter or release it through respiration. Fungi participate in decomposition through the release of enzymes responsible for carrying out the chemical reactions that break down plant material. Species introductions have the potential to alter decomposition dynamics. In the Midwestern US, the invasive shrub species Lonicera maackii has overtaken many forests and is likely altering decay dynamics and the destiny of carbon within the region. Thus, it is essential to monitor the decay of woody debris under invasion pressures of L. maackii in order to monitor nutrient cycling in this region. I placed blocks of native Quercus rubra and economically important Pinus radiata in an L. maackii invaded forest for one year to determine environmental, enzymatic and fungal drivers of decomposition. Decomposition was faster for oak wood than pine wood, and decomposition rate was not directly altered by L. maackii. Instead, L. maackii increased the moisture of the decomposing wood, leading to higher amounts of hydrolytic enzyme activity which structured fungal communities within decaying wood. This insinuates that despite not altering decomposition rates directly, L. maackii is priming native woody debris for faster decomposition and therefore increasing the rate of nutrient turnover. Thus, L. maackii imposes shifts to fungal communities and their functionality and the soil environment. These changes could become especially important in later stage decay where there will likely be perceptible differences in decay rates as altered by L. maackii. The changes L. maackii imposes on decomposition will likely lead to faster carbon release from forested ecosystems and shorter retention times. Consequently, to ensure effective management strategies that mitigate excess carbon dioxide from the atmosphere, monitoring decomposition of woody material in invaded forests is imperative.
Book Synopsis Establishing a Model about Coarse Woody Debris Decay Dynamics in Subalpine Forests by : Marta Petrillo
Download or read book Establishing a Model about Coarse Woody Debris Decay Dynamics in Subalpine Forests written by Marta Petrillo and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spatiotemporal Dynamics of Coarse Woody Debris in a Topographically Complex, Old-growth, Deciduous Forest by : Jessica Glynda-Lee Davis
Download or read book Spatiotemporal Dynamics of Coarse Woody Debris in a Topographically Complex, Old-growth, Deciduous Forest written by Jessica Glynda-Lee Davis and published by . This book was released on 2014 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest ecosystems are an important sink in the global carbon cycle. Coarse woody debris (CWD, tree remains greater than or equal to 20cm in diameter), which makes up 20% of the aboveground forest biomass, can be an important indicator of historical forest disturbance events and is an important variable for establishing carbon storage baselines. Eighty plots (0.04 ha) located in old-growth temperate deciduous forest within Lilley Cornett Woods Ecological Research Station (LCW), southeastern KY, USA, were used to assess spatial and temporal dynamics in CWD. These plots were sampled for CWD three times (1989, 1999, and 2012) using identical methods and all samples were identified to species, assigned to a decomposition class, and measured in length and width to estimate volume and sample biomass. We found an increasing trend in CWD biomass that was both evenly-distributed across species and exhibited a distinct spatial pattern. The increasing deposition and spatial relationship were explained by recent disturbance events, as well as environmental variables. Because less than 1% of northeastern forests are old growth and climate change alters forest carbon balance, this study satisfies a current need for ongoing documentation of old-growth forests.
Book Synopsis The Decay of Coarse Woody Debris by : Jens Mackensen
Download or read book The Decay of Coarse Woody Debris written by Jens Mackensen and published by . This book was released on 1999 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamics of Coarse Woody Debris in North American Forests by : Gregory Zimmerman
Download or read book Dynamics of Coarse Woody Debris in North American Forests written by Gregory Zimmerman and published by . This book was released on 2004 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gesetz Nr. 20557 über ausländische Investitionen veröffentl. im Boletín oficial vom 6. Dez. 1974 by : Deutsche Überseeische Bank
Download or read book Gesetz Nr. 20557 über ausländische Investitionen veröffentl. im Boletín oficial vom 6. Dez. 1974 written by Deutsche Überseeische Bank and published by . This book was released on 1974 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Input and Decay of Coarse Woody Debris in Coniferous Stands in Western Oregon and Washington by : P. Sollins
Download or read book Input and Decay of Coarse Woody Debris in Coniferous Stands in Western Oregon and Washington written by P. Sollins and published by . This book was released on 1982 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamics of Coarse Woody Debris in Transitional and Northern Hardwood Forests by : Anna M. Lester
Download or read book Dynamics of Coarse Woody Debris in Transitional and Northern Hardwood Forests written by Anna M. Lester and published by . This book was released on 2004 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Moisture Content and Initial Heterotrophic Colonization on the Decomposition of Coarse Woody Debris by : Jason Scot Barker
Download or read book The Effects of Moisture Content and Initial Heterotrophic Colonization on the Decomposition of Coarse Woody Debris written by Jason Scot Barker and published by . This book was released on 2003 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Previous research on coarse woody debris (CWD) indicated that moisture content and initial heterotrophic colonization of decaying wood can affect the decomposition process. Six heterotrophic treatments were created to simulate the effects of physical penetration of the bark and wood and the transmission of ascomycetes versus basidiomycetes into CWD. In 1995, 360 Douglas-fir (Pseudotsuga menziesii) were randomly placed at five replicate sites in old-growth stands. Each site had 6 heterotrophic (HET) x 2 moisture combinations (TENT). One set of logs representing the treatment combinations was used for sampling respiration and another set was used to measure volume affected by insect gallery excavations and fungal rot and to determine decay rates. Respiration was sampled three times during the summer of 2001. The results indicated that the HET treatments were no longer affecting respiration rates. Analysis of the average of the three sampling periods revealed no TENT effect but examinations of the individual sampling dates suggests that tented logs might have higher respiration rates than non-tented logs as summer progresses. In the aggregate, the TENT treatment reduced moisture content from 45% to 36%, a 20 percent reduction in moisture levels. The HET and the TENT treatments did not affect decay rates. The mean density change for the logs was -0.072 g/cm3 ± 0.03 and the mean decay constant was 0.026 ± 0.011. The TENT treatment did affect heterotrophic activity. The mean volume of wood borer excavation and extent of brown rot was higher in the tented logs (256 cm3) than in the non-tented logs (59.9 cm3). There was also a statistically significant interaction between the HET and TENT treatments. The largest differences in volume affected by wood borers and fungal rot were found in treatments that injected ascomycetes into the experimental logs. In sum, there was limited evidence that the differences in moisture content caused by the TENT treatment affected the decomposition process but the HET treatments appear to not be directly influencing decomposition after six years. The findings suggest differences in the initial community composition of heterotrophs have a decreasing impact on the decomposition process as it progresses.
Book Synopsis Framework for Modelling Coarse Woody Debris Dynamics, and Case Study from Tasmania by :
Download or read book Framework for Modelling Coarse Woody Debris Dynamics, and Case Study from Tasmania written by and published by . This book was released on 2008 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biodiversity and Coarse Woody Debris in Southern Forests: Proceedings of the Workshop on Coarse Woody Debris in Southern Forests: Effects on Biodiversity by :
Download or read book Biodiversity and Coarse Woody Debris in Southern Forests: Proceedings of the Workshop on Coarse Woody Debris in Southern Forests: Effects on Biodiversity written by and published by DIANE Publishing. This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quantitative and Qualitative Measures of Decomposition by :
Download or read book Quantitative and Qualitative Measures of Decomposition written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Decomposition rates of loblolly pine coarse woody debris (CWD) were determined by mass loss and wood density changes for trees that differed in source of mortality (natural, girdle-poison, and felling). Specifically, three treatments were examined: (1) control (CON): natural mortality; (2) CD: 5-fold increase in CWD compared with the CON; and (3) CS: 12-fold increase in snags compared with the CON. The additional CWD in the CD treatment plots and the additional snags in the CS plots were achieved by felling (for the CD plots) or girdling followed by herbicide injection (for the CS plots) select trees in these plots. Consequently, mortality on the CD plots is due to natural causes and felling. Likewise, mortality on the CS plots is due to natural causes and girdle-poison. In each treatment plot, mortality due to natural causes was inventoried since 1997, whereas mortality due to girdle-poison and felling were inventoried since 2001. No significant difference was detected between the rates of decomposition for the CWD on these treatment plots, indicating that source of the tree mortality did not influence rates of decomposition once the tree fell. These experimental measures of decomposition were compared with two decay classification systems (three- and five-unit classifications) to determine linkages. Changes in wood density did not correlate to any decay classification, whereas mass loss had a weak correlation with decay class. However, the large degree of variation limits the utility of decay classification systems in estimating mass loss.
Book Synopsis Invertebrate Interaction with Coarse Woody Debris of Native and Invasive Species by : Sydney Griffin
Download or read book Invertebrate Interaction with Coarse Woody Debris of Native and Invasive Species written by Sydney Griffin and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to tree-of-heaven being an invasive species, there is an interest in understanding how it changes the forest from germination to decay. This research aims to study the relationship between insects and the two tree species, tree-of-heaven (Ailanthus altissima) and tulip poplar (Liriodendron tulipifera). Comparing tree-of-heaven’s invertebrate interaction to a similar native species, tulip poplar, will give us a better understanding as to how its interactions will affect the ecology of the forest.
Book Synopsis A Five-point Decay-class System for Coarse Woody Debris in Tasmanian Wet Eucalypt Forests by : Lee Stamm
Download or read book A Five-point Decay-class System for Coarse Woody Debris in Tasmanian Wet Eucalypt Forests written by Lee Stamm and published by . This book was released on 2009* with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Woody Detritus Density and Density Reduction Factors for Tree Species in the United States by :
Download or read book Woody Detritus Density and Density Reduction Factors for Tree Species in the United States written by and published by . This book was released on 2008 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Decay and Position Class Dynamics of Large Woody Debris in Small Streams in the Alberta Foothills by : Evan B. Henderson
Download or read book Decay and Position Class Dynamics of Large Woody Debris in Small Streams in the Alberta Foothills written by Evan B. Henderson and published by . This book was released on 2008 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1999 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:
