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Full-Text Articles in Life Sciences

Differential Effects Of Canopy Trimming And Litter Deposition On Litterfall And Nutrient Dynamics In A Wet Subtropical Forest, Steven J. Hall, Whendee L. Silver, Grizelle González Nov 2014

Differential Effects Of Canopy Trimming And Litter Deposition On Litterfall And Nutrient Dynamics In A Wet Subtropical Forest, Steven J. Hall, Whendee L. Silver, Grizelle González

Steven J. Hall

Humid tropical forests have the highest rates of litterfall production globally, which fuels rapid nutrient recycling and high net ecosystem production. Severe storm events significantly alter patterns in litterfall mass and nutrient dynamics through a combination of canopy disturbance and litter deposition. In this study, we used a large-scale long-term manipulation experiment to explore the separate and combined effects of canopy trimming and litter deposition on litterfall rates and litter nutrient concentrations and content. The deposition of fine litter associated with the treatments was equivalent to more than two times the annual fine litterfall mass and nutrient content in control …


Breaking The Enzymatic Latch: Impacts Of Reducing Conditions On Hydrolytic Enzyme Activity In Tropical Forest Soils, Steven J. Hall, Jonathan Treffkorn, Whendee L. Silver Oct 2014

Breaking The Enzymatic Latch: Impacts Of Reducing Conditions On Hydrolytic Enzyme Activity In Tropical Forest Soils, Steven J. Hall, Jonathan Treffkorn, Whendee L. Silver

Steven J. Hall

The enzymatic latch hypothesis proposes that oxygen (O2) limitation promotes wetland carbon (C) storage by indirectly decreasing the activities of hydrolytic enzymes that decompose organic matter. Humid tropical forest soils are often characterized by low and fluctuating redox conditions and harbor a large pool of organic matter, yet they also have the fastest decomposition rates globally. We tested the enzymatic latch hypothesis across a soil O2 gradient in the Luquillo Experimental Forest, Puerto Rico, USA. Enzyme activities expressed on a soil mass basis did not systematically decline across a landscape O2 gradient, nor did phenolics accumulate, the proposed mechanism of …


Hsisp Annotated Bibliography: Attitudes Toward Wildlife And The Environment (1998-2013), Erich Yahner Sep 2014

Hsisp Annotated Bibliography: Attitudes Toward Wildlife And The Environment (1998-2013), Erich Yahner

Erich Yahner

No abstract provided.


Use Of Integrated Training Products To Support Grassland Curing Observers, Jude Alexander, Rosalind Thieme, Susan Kidnie, David Nichols, Rachel Bessell, Danielle Martin, Alex Chen Aug 2014

Use Of Integrated Training Products To Support Grassland Curing Observers, Jude Alexander, Rosalind Thieme, Susan Kidnie, David Nichols, Rachel Bessell, Danielle Martin, Alex Chen

Jude Alexander

Grassland curing training is delivered as an integrated suite of products designed to support the principles required to make observations in the field. Consistent, accurate reporting is based on a flexible understanding of the underlying characteristics of grass as it dries (cures). The structure and composition of grasslands are complex and dynamic; therefore teaching every possible set of parameters by rote would be impractical.


Mitigation Site Soil Characteristics And The Effects Of Inoculation, Nursery Fertilizer Practices And Irrigation On Survival And Growth Of Mesquite (Prosopis Glandulosa) In The Coachella Valley, California, David A. Bainbridge, Marcelle M. Darby Jul 2014

Mitigation Site Soil Characteristics And The Effects Of Inoculation, Nursery Fertilizer Practices And Irrigation On Survival And Growth Of Mesquite (Prosopis Glandulosa) In The Coachella Valley, California, David A. Bainbridge, Marcelle M. Darby

David A Bainbridge

Prosopis glandulosa var. torreyana (mesquite, honey mesquite) is a small to medium sized leguminous tree that was once common in the low desert of California. Widespread destruction of mesquite woodlands in the Coachella Valley of southern California for fuel wood, agricultural and urban development, and urbanization has reduced once vast stands to isolated remnants. The rerouting and widening of Highway 86 in the Coachella Valley was a typical example of ongoing mesquite woodland removal. Despite the recognized need for mitigation, relatively little information on mesquite establishment in California is available. This research explored mesquite establishment by replanting on an abandoned …


Mass And Nutrient Loss In Decaying Hardwood Boles At Hubbard Brook, Chris E. Johnson Jul 2014

Mass And Nutrient Loss In Decaying Hardwood Boles At Hubbard Brook, Chris E. Johnson

Chris E Johnson

No abstract provided.


Recognizing And Overcoming Difficult Site Conditions For Afforestation Of Bottomland Hardwoods, William Conner, J A. Stanturf, E S. Gardiner, C J. Schweitzer, A W. Ezell Jun 2014

Recognizing And Overcoming Difficult Site Conditions For Afforestation Of Bottomland Hardwoods, William Conner, J A. Stanturf, E S. Gardiner, C J. Schweitzer, A W. Ezell

William Conner

In the last decade, about 370,000 acres (150,000 ha) of economically marginalfarmland in the Lower Mississippi Alluvial Valley (LMAV) have been restored tobottomland hardwood forests (Stanturf and others 1998, King and Keeland 1999,Schoenholtz and others 2001). Planting of this considerable acreage is due to several federal programs, such as the Wetlands Reserve Program (WRP), that assist landowners by financing afforestation (Figure 1). Unfortunately, these operational plantings have not performed as well as smaller plantings or research plots (Stanturf and others 2001a). For example, a recent survey of WRP plantings in westcentral Mississippi revealed that more than 90 percent of the …


Long-Term Success Of Stump Sprouts In High-Graded Baldcypress-Water Tupelo Swamps In The Mississippi Delta, William Conner, Richard F. Keim, Jim L. Chambers, Melinda S. Hughes, Luben D. Dimov, Gary P. Shaffer, Emile S. Gardiner, John W. Day Jun 2014

Long-Term Success Of Stump Sprouts In High-Graded Baldcypress-Water Tupelo Swamps In The Mississippi Delta, William Conner, Richard F. Keim, Jim L. Chambers, Melinda S. Hughes, Luben D. Dimov, Gary P. Shaffer, Emile S. Gardiner, John W. Day

William Conner

Regeneration of baldcypress (Taxodium distichum (L.) Rich.) and water tupelo (Nyssa aquatica L.) in swamps of the deltaic plain of the Mississippi River are of major importance for ecosystem sustainability and forest management in the context of regional hydrological changes. Water tupelo often forms prolific sprouts from cut stumps, and baldcypress is one of few conifers to produce stump sprouts capable of becoming full-grown trees. Previous studies have addressed early survival of baldcypress stump sprouts, but have not addressed the likelihood of sprouts becoming an important component of mature stands. We surveyed stands in southeastern Louisiana that were partially logged …


Vexar Seedling Protectors Did Not Reduce Nutria Damage To Planted Baldcypress Seedlings, William Conner, John R. Toliver Jun 2014

Vexar Seedling Protectors Did Not Reduce Nutria Damage To Planted Baldcypress Seedlings, William Conner, John R. Toliver

William Conner

Vexar seedling protectors were tested for preventing nutria damage to baldcypress (Taxodium distichum (L.) Rich) seedlings planted in Louisianaswamp forests. Five areas were planted with 1-year-old baldcypress seedlings. Half the seedlings in each area were protected with Vexar seedling protectors. The protectors slowed down the rate of destruction in some areas, but after 3 months, 85% of the guarded seedlings and 87% of the unguarded seedlings were destroyed.


Leaf Litter Decomposition And Nutrient Dynamics In Four Southern Forested Floodplain Communities, William Conner, Terrell T. Baker Iii, B Graeme Lockaby, Calvin Meier, John A. Stanturf, Marianne K. Burke Jun 2014

Leaf Litter Decomposition And Nutrient Dynamics In Four Southern Forested Floodplain Communities, William Conner, Terrell T. Baker Iii, B Graeme Lockaby, Calvin Meier, John A. Stanturf, Marianne K. Burke

William Conner

Decomposition of site-specific litter mixtures was monitored for 100 wk in four Roodplaht communities: (i) a mixed oak community along the Cache River in central Arkansas, (ii) s sweetgum (Liquidambar styracijlua L.)-cherrybark oak (Quercus falcata var. pagodaefolia ELI.) community along Iatt Creek in central Louisiana, (iii) a sweetgum-swamp tupelo [Nyssa sylvatica var. biflora (Walt.) Sarg.] community, and (iv) a laurel oak (Quercus laurifolia Michx.) commnnityalong the Coosawhatchie River in southeastern South Carolina. Soil temperature, hydroperiod, and litter quality (C:N, C:P, N:P, fignin: N) were used to interpret differences in the rates of mass loss and nutrient dynamics. After 100 wk, …


Fine Root Productivity And Dynamics On A Forested Floodplain In South Carolina, William Conner, Terrell Baker, B. Graeme Lockaby, John A. Stanturf, Marianne K. Burke Jun 2014

Fine Root Productivity And Dynamics On A Forested Floodplain In South Carolina, William Conner, Terrell Baker, B. Graeme Lockaby, John A. Stanturf, Marianne K. Burke

William Conner

The highly dynamic, fine-root component of forested wetland ecosystems has received inadequate attention in the literature. Characterizing fine root dynamics is a challenging endeavor in any system, but the difficulties are particularly evident in forested floodplains where frequent hydrologic fluctuations directly influence fine root dynamics. Fine root (< 3mm) biomass, production, and turnover were estimated for three soils exhibiting different drainage patterns within a mixed-oak community on the Coosawhatchie River floodplain, Jasper County, SC. Within a 45-cm deep vertical profile, 74% of total fine root biomass was restricted to the upper 15 cm of the soil surface. Fine root biomass decreased as the soil became less well-drained (e.g., fine root biomass in well-drained soil > intermediately drained soil > poorly drained soil). Fine root productivity was measured for one year using minirhizotrons and in-situ screens. Both methods suggested higher fine root production in better drained soils but showed frequent fluctuations in fine root growth and mortality, suggesting the need for frequent sampling at short intervals (e.g., monthly) to …


The Use Of Tree Shelters In Restoring Forest Species To A Floodplain Delta: 5-Year Results, William Conner, L Wayne Inabinette, Evaden F. Brantley Jun 2014

The Use Of Tree Shelters In Restoring Forest Species To A Floodplain Delta: 5-Year Results, William Conner, L Wayne Inabinette, Evaden F. Brantley

William Conner

Without herbivory control, natural seed sources, and seasonal flood events, recovery of the Pen branch delta in South Carolina to former conditions (prior to thermal discharge) may take many years. To assess the recovery process, seedlings of baldcypress (TuxoLtiurn distichum), water tupelo (Nyssa aquatica), swamp blackgum (Nyssa sylvatica var. biflora), and green ash (Fraxinuspennsylucmicn) were planted in four areas of the delta in 1994. One-half of the seedlings were protected using tree shelters 1.5 m tall. Heights of seedlings were taken after planting and at the end of each growing season from 1994 to 1998. Survival at the end of …


Restoration Of A Severely Impacted Riparian Wetland System - The Pen Branch Project, William Conner, Christopher Barton, Eric A. Nelson, Randall K. Kolka, Kenneth W. Mcleod, Michelle Lakly, Douglas Martin, John Wiggington, Carl Trettin, Joe Wisniewski Jun 2014

Restoration Of A Severely Impacted Riparian Wetland System - The Pen Branch Project, William Conner, Christopher Barton, Eric A. Nelson, Randall K. Kolka, Kenneth W. Mcleod, Michelle Lakly, Douglas Martin, John Wiggington, Carl Trettin, Joe Wisniewski

William Conner

The Savannah River Swamp is a 3020 ha forested wetland on the floodplain of the Savannah River and is located on the Department of Energy’s Savannah River Site (SRS) near Aiken, SC (Fig. 1). Historically the swamp consisted ofapproximately 50% baldcypress-water tupelo stands, 40% mixed bottomland hardwood stands, and 10% shrub, marsh, and open water. Tributeries of the river were typical of Southeastern bottomland hardwood forests. The hydrology was controlled by flow from four creeks that drain into the swamp and by flooding of the Savannah River. Upstream dams on the Savannah River have caused some alteration of the water …


Water Level Observations In Mangrove Swamps During Two Hurricanes In Florida, William Conner, Thomas W. Doyle, Terry J. Doyle, Christopher Swarzenski, Andrew S. From, Richard H. Day, Ken W. Krauss Jun 2014

Water Level Observations In Mangrove Swamps During Two Hurricanes In Florida, William Conner, Thomas W. Doyle, Terry J. Doyle, Christopher Swarzenski, Andrew S. From, Richard H. Day, Ken W. Krauss

William Conner

Little is known about the effectiveness of mangroves in suppressing water level heights during landfall of tropical storms and hurricanes. Recent hurricane strikes along the Gulf Coast of the United States have impacted wetland integrity in some areas and hastened the need to understand how and to what degree coastal forested wetlands confer protection by reducing the height of peak water level. In recent years, U.S. Geological Survey Gulf Coast research projects in Florida have instrumented mangrove sites with continuous water level recorders. Our ad hoc network of water level recorders documented the rise, peak, and fall of water levels …


Towards Sustainable Management Of Louisiana's Coastal Wetland Forests: Problems, Contraints, And A New Beginning, William Conner, J L. Chambers, R F. Keim, S P. Faulkner, J W. Day, E S. Gardiner, M S. Hughes, S L. King, K W. Mcleod, C A. Miller, J A. Nyman, G P. Shaffer Jun 2014

Towards Sustainable Management Of Louisiana's Coastal Wetland Forests: Problems, Contraints, And A New Beginning, William Conner, J L. Chambers, R F. Keim, S P. Faulkner, J W. Day, E S. Gardiner, M S. Hughes, S L. King, K W. Mcleod, C A. Miller, J A. Nyman, G P. Shaffer

William Conner

Over 345,000 ha of forested swamps occur throughout the Mississippi River Deltaic Plain. Natural and anthropogenic changes in hydrology and geomorphology at local and landscape levels have reduced the productivity in many of these coastal wetland forests areas and have caused the complete loss of forest cover in some places. A summary and interpretation of the availablescience, suggestions for policy change, and a multidisciplinary (multi-responsibility) approach were needed to address these issues [in the context of private land]. In response, the Louisiana Governor's office formed a Coastal Wetland Forest Conservation and Use Science Working Group (SWG) and an associated Advisory …


Conservation Of Louisiana's Coastal Wetland Forests, William Conner, Jim L. Chambers, Richard F. Keim, John W. Day Jr, Stephen P. Faulkner, Emile S. Gardiner, Melinda S. Hughes, Sammy L. King, Kenneth W. Mcleod, Craig A. Miller, J Andrew Nyman, Gary P. Shaffer Jun 2014

Conservation Of Louisiana's Coastal Wetland Forests, William Conner, Jim L. Chambers, Richard F. Keim, John W. Day Jr, Stephen P. Faulkner, Emile S. Gardiner, Melinda S. Hughes, Sammy L. King, Kenneth W. Mcleod, Craig A. Miller, J Andrew Nyman, Gary P. Shaffer

William Conner

No abstract provided.


Forested Wetlands Of The Southern United States: A Bibliography, William Conner, Nicole L. Hill, Evander M. Whitehead, William S. Busbee, Marceau A. Ratard, Mehmet Ozalp, Darrell L. Smith, James P. Marshall Jun 2014

Forested Wetlands Of The Southern United States: A Bibliography, William Conner, Nicole L. Hill, Evander M. Whitehead, William S. Busbee, Marceau A. Ratard, Mehmet Ozalp, Darrell L. Smith, James P. Marshall

William Conner

The term forested wetland covers a variety of forest types including mangroves, cypress/tupelo swamps, bottomland hardwoods, pocosins and Carolina bays, flatwoods, and mountain fens. These forests are dominated by woody species that have morphological features, physiological adaptations, and/or reproductive strategies enabling them to achieve maturity and reproduce in an environment where the soils within the rooting zone may be inundated or saturated for various periods during the growing season. Although alluvial floodplains occur along most streams of the United States, they are most extensive in the Atlantic Coastal Plain, Gulf Coastal Plain, and Mississippi Alluvial Plain. Only about half of …


Baldcypress Restoration In A Saltwater Damaged Area Of South Carolina, William Conner, Mehmet Ozalp Jun 2014

Baldcypress Restoration In A Saltwater Damaged Area Of South Carolina, William Conner, Mehmet Ozalp

William Conner

Baldcypress (Taxodium distichum (L.) Rich.) seed was collected in 1992 from nine different estuarine areas in the southeastern United States (Winyah Bay, SC, Ogeechee and Altmaha Rivers in GA, Loftin Creek, FL, Ochlockonee River FL, Mobile Bay, AL, West Pearl River, LA, Bayou LaBranche, LA, and Lake Chicot, LA) and planted in Clemson University's Hobcaw nursery in the spring of 1993. Germination ranged from a low of 16 percent for seed from FL to 58 percent for seed from NC. Seedlings were grown in the nursery for two growing seasons, lifted, and planted in an area killed by saltwater introduced …


Oil And Gas Impacts In The Big Cypress Ecosystem: An Analysis Of Impacts Associated With Proposed Activities In The Nobles Grade Area, William Conner, Stephen E. Davis Iii, Kirsten N. Hines, John J. Cox, Dale E. Gawlik, Jerome A. Jackson, James O. Jones, Fernando Miralles-Wilhelm, Jennifer H. Richards Jun 2014

Oil And Gas Impacts In The Big Cypress Ecosystem: An Analysis Of Impacts Associated With Proposed Activities In The Nobles Grade Area, William Conner, Stephen E. Davis Iii, Kirsten N. Hines, John J. Cox, Dale E. Gawlik, Jerome A. Jackson, James O. Jones, Fernando Miralles-Wilhelm, Jennifer H. Richards

William Conner

No abstract provided.


Restoration Methods For Deepwater Swamps, William Conner, Kenneth W. Mcleod, Ellen Colodney Jun 2014

Restoration Methods For Deepwater Swamps, William Conner, Kenneth W. Mcleod, Ellen Colodney

William Conner

Planting in deepwater swamp areas is difficult and time consuming, and nursery-grown seedlings are often not suited for such conditions. Baldcypress [Taxodium distichum (L.) Rich.], water tupelo (Nyssa aquatica L.), swamp blackgum [N. sylvatica var. biflora (Walt.) Sarg.], and green ash (Fraxinus pennsylvanica Marsh.) have been planted at various flooded sites in South Carolina and Louisiana. One of the most effective means of planting these species in flooded situations was to heavily prune the lateral roots, grasp the seedling at the root collar, and push it into the soil. Excellent results have been obtained with baldcypress, whereas green ash was …


Status Of Private Cypress Wetland Forests In Georgia - Alternatives For Conservation And Restoration, William Conner, Laura Fabrizio, Bill Sapp Jun 2014

Status Of Private Cypress Wetland Forests In Georgia - Alternatives For Conservation And Restoration, William Conner, Laura Fabrizio, Bill Sapp

William Conner

No abstract provided.


Root Growth, William Conner, Terrell T. Baker Iii, B. Graeme Lockaby, Marianne K. Burke, John A. Stanturf Jun 2014

Root Growth, William Conner, Terrell T. Baker Iii, B. Graeme Lockaby, Marianne K. Burke, John A. Stanturf

William Conner

No abstract provided.


The Importance Of Pulsed Physical Events For Sustainability Of Louisiana Coastal Forested Wetlands, William Conner, J W. Day Jr, G P. Shaffer Jun 2014

The Importance Of Pulsed Physical Events For Sustainability Of Louisiana Coastal Forested Wetlands, William Conner, J W. Day Jr, G P. Shaffer

William Conner

A number of freshwater diversions from the Mississippi River into Louisiana’s coastal wetlands are currently in operation or in the planning stage. These diversions have multiple objectives including maintaining a desirable salinity gradient, restoring deteriorating wetlands, and enhancing fisheries. The extensive freshwater forested wetlands surrounding the western end of Lake Pontchartrain receive little or no sediment input and are currently deteriorating due to continuous flooding. Diverting nutrient-rich water through wetlands can lead to substantial nutrient removal and to enhanced accretion. The objective of this paper is to compare the impacts on freshwater wetland ecology, accretion, and water quality of several …


Bottomland Hardwood Management Demonstrations For South Carolina's Lowcountry Forest Conservation Project, William Conner, R Franklin, T Williams, G Kessler, A Nygaard Jun 2014

Bottomland Hardwood Management Demonstrations For South Carolina's Lowcountry Forest Conservation Project, William Conner, R Franklin, T Williams, G Kessler, A Nygaard

William Conner

Southern bottomland hardwood forests occur on river floodplains of the southeastern United States, and ecological processes are driven by seasonal floodwaters from the river. Conservation and management of southeastern US coastal plain ecosystems is a priority in South Carolina’s Lowcountry Forest Conservation Project. The project is a partnership of Clemson University, Ducks Unlimited, the Joseph W. Jones Ecological Research Center, Lowcountry Open Land Trust, South Carolina Coastal Conservation League, The Conservation Fund, and The Nature Conservancy. A goal of this project is to create and disseminate economically and ecologically viable methods for conservation-based bottomland hardwood management on private lands, including …


Litter Decomposition, William Conner, Terrell T. Baker Iii, B. Graeme Lockaby, John A. Stanturf, Marianne K. Burke Jun 2014

Litter Decomposition, William Conner, Terrell T. Baker Iii, B. Graeme Lockaby, John A. Stanturf, Marianne K. Burke

William Conner

No abstract provided.


Siviculture And Management Strategies Applicable To Southern Hardwoods, William Conner, Ray R. Hicks Jr, Robert C. Kellison, David Vanlear Jun 2014

Siviculture And Management Strategies Applicable To Southern Hardwoods, William Conner, Ray R. Hicks Jr, Robert C. Kellison, David Vanlear

William Conner

Southern hardwood forests stretch from the Virginias to Florida and from the mid-Atlantic to Missouri. They can generally be grouped into upland forests and bottomland forests. The upland hardwood forests of the southern region are usually associated with the mountainous topography of the Appalachians and Ozarks. Bottomland hardwoods are found along the floodplains of larger rivers in the Atlantic and Gulf Coastal Plains, including the Mississippi River floodplain. Southern hardwood forests are owned by a variety of governmental and private owners, but the vast majority of owners are nonindustrial private individuals. These owners seldom engage in intensive forest management, often …


National Park Service Cave Ecology Inventory And Monitoring Framework, Gretchen M. Baker, Steven J. Taylor, Shawn Thomas, Rick Olson, Kathy Lavoie, Marie Denn, Steven Thomas, Hazel Barton, Kurt Helf, Rene Ohms, Joel Despain, Jim Kennedy, David Larson May 2014

National Park Service Cave Ecology Inventory And Monitoring Framework, Gretchen M. Baker, Steven J. Taylor, Shawn Thomas, Rick Olson, Kathy Lavoie, Marie Denn, Steven Thomas, Hazel Barton, Kurt Helf, Rene Ohms, Joel Despain, Jim Kennedy, David Larson

Hazel Barton

A team developed the Cave Ecology Inventory and Monitoring Framework for National Park Service (NPS) units. It contains information for NPS cave managers across the United States to determine how to inventory and monitor cave ecology. Due to the wide geographical scope of NPS caves and their many different types, the document does not prescribe exact protocols. Instead, it provides guidance for what types of inventory and monitoring are possible, a framework for deciding how to prioritize inventory and monitoring activities, and references to specific protocols that are already in place at NPS cave parks. Keywords: cave ecology, cave microbiology, …


Soil Penetrometer, David A. Bainbridge Jan 2014

Soil Penetrometer, David A. Bainbridge

David A Bainbridge

A simple easy to build impact soil penetrometer can provide very useful information on soil strength. This can be very important for restoration planning and management of soils in agriculture and forestry.


Fungal Solid-State Fermentation And Various Methods Of Enhancement In Cellulase Production, Li Wan Yoon, Teck Nam Ang Dr., Gek Cheng Ngoh Dr, Adeline Seak May Chua Dr Jan 2014

Fungal Solid-State Fermentation And Various Methods Of Enhancement In Cellulase Production, Li Wan Yoon, Teck Nam Ang Dr., Gek Cheng Ngoh Dr, Adeline Seak May Chua Dr

Teck Nam Ang Dr.

Cellulase serves vast applications in the industries of biofuel, pulp and paper, detergent and textile. With the presence of its three components i.e. endoglucanase, exoglucanase and β-glucosidase, the enzyme can effectively depolymerize the cellulose chains in lignocellulosic substrate to produce smaller sugar units that consists of cellobiase and glucose. Fungi are the most suitable cellase producers attributing to its ability to produce a complete cellulase system. Solid state fermentation (SSF) by fungi is a preferable production route for cellulase as it imposes lower cost and enables the production of cellulase with higher titre. This article gives an overview on the …


Forest Biomass Supply Chains In Ireland: A Life Cycle Assessment Of Ghg Emissions And Primary Energy Balances, Fionnuala Murphy Jan 2014

Forest Biomass Supply Chains In Ireland: A Life Cycle Assessment Of Ghg Emissions And Primary Energy Balances, Fionnuala Murphy

Fionnuala Murphy

The demand for wood for energy production in Ireland is predicted to double from 1.5 million m3 over bark (OB) in 2011 to 3 million m3 OB by 2020. There is a large potential for additional biomass recovery for energetic purposes from both thinning forest stands and by harvesting of tops and branches, and stumps. This study builds on research within the wood-for-energy concept in Ireland by analysing the energy requirements and greenhouse gas emissions associated with thinning, residue bundling and stump removal for energy purposes. To date there have been no studies on harvesting of residues and stumps in …