Download or read book Fuel Dynamics of a Longleaf Pine pinus Palustris Mill Woodland Under a Prescribed Fire Rotation written by Raien K. Emery and published by . This book was released on 2020 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a result of historical logging and fire exclusion, longleaf pine (Pinus palustris Mill.) ecosystems have experienced extensive decline, now occurring on only 20́35% of its native range. Attempts to re-introduce fire into these forests where fuels have been altered by previous fire-exclusion or disturbance may not achieve desired management goals because fire effects are largely dependent on available fuels. To understand how fire impacts longleaf pine woodlands where fuels have been altered, fuel was collected before (2017) and after (2019) a prescribed fire on undisturbed, wind-disturbed, and wind-disturbed and salvage-harvested treatment types. In conjunction with percent consumption values calculated form laboratory burns, decomposition rates, and accumulation rates, fuel dynamics models were created and validated against post-fire fuel loadings. Total fuel loadings for undisturbed plots decreased 43%, wind-disturbed plots decreased 67%, and wind-disturbed and salvage-harvested plots decreased 53%. Fuel dynamics models successfully predicted post-fire fuel loadings for pine needles (rs = 0.782; p

Download or read book Restoration of Longleaf Pine Ecosystems written by and published by . This book was released on 2005 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Longleaf pine (Pinus palustris) ecosystems once occupied 38 million ha in the Southeastern United States, occurring as forests, woodlands, and savannas on a variety of sites ranging from wet flatwoods to xeric sandhills and rocky mountainous ridges. Characterized by an open parklike structure, longleaf pine ecosystems are a product of frequent fires, facilitated by the presence of fallen pine needles and bunchgrasses in the understory. Timber harvest, land conversion to agricultural and other nonforest uses, and alteration of fire regimes greatly reduced longleaf pine ecosystems, until only 1.2 million ha remained in 1995. Longleaf pine ecosystems are among the most species-rich ecosystems outside the tropics. However, habitat loss and degradation have caused increased rarity of many obligate species. The lack of frequent surface fires and the proliferation of woody plants in the understory and midstory have greatly increased the risk of additional longleaf pine ecosystem losses from catastrophic fire. Because longleaf pine still exists in numerous small fragments throughout its range, it is reasonable to conclude that it can be restored. Restoration efforts now underway use physical, chemical, and pyric methods to reestablish the natural structure and function in these ecosystems by adjusting species composition, modifying stand structure, and facilitating ecological processes, such as periodic fire and longleaf pine regeneration. The ecological, economic, and social benefits of restoring longleaf pine ecosystems include (1) expanding the habitat available to aid in the recovery of numerous imperiled species, (2) improving habitat quality for many wildlife species, (3) producing greater amounts of high-quality longleaf pine timber products, (4) increasing the production of pine straw, (5) providing new recreational opportunities, (6) preserving natural and cultural legacies, and (7) creating a broader range of management options for future generations.

Download or read book Table for Estimating Fuel Loading in Slash and Longleaf Pine Stands written by M. Boyd Edwards and published by . This book was released on 1976 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growing season Burns for Control of Hardwoods in Longleaf Pine Stands written by William Davis Boyer and published by . This book was released on 1990 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fire Effects and Litter Accumulation Dynamics in a Montane Longleaf Pine Ecosystem written by Adam M. Bale and published by . This book was released on 2009 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: A common obstacle for public land managers developing fire management plans in the eastern and southern United States is the lack of quantitative information on historic fire regimes and the effects that varying fine fuel loadings can produce. Despite the ecological importance of litter, little is known about the effects of litter accumulation and decay rates in the montane longleaf pine (Pinus palustris Mill.) region. Historic fire information helps to set target goals for wildland fire practices and fuels management. In this thesis, four centuries of past fire regimes on the Talladega National Forest in northeastern Alabama are described along with litter dynamics of recent prescribed burning practices. Seasonally distinguishable fire events from 372 tree-ring dated fire scars were used to reconstruct past fire regimes. Litter accumulation, combined litter measurements, and model estimates were used to derive decay constants that characterize montane longleaf pine. The fire regime prior to the early 19th century was characterized by a mean fire interval (MFI) of 3 years. The onset of EuroAmerican settlement in the mid-19th century changed the fire regime to 2.5 years. The number of fires decreased during the 20th century due to changes in land use, anthropogenic influences and climate-fire relationships. Litter accumulation equations were used to demonstrate temporal changes in litter loading. For example, after a fire event that consumes nearly 100 percent of the litter, about 35 percent of the litter accumulation equilibrium is reached within 1 year, 58 percent within 2 years, and the equilibrium (99 percent accumulation) after approximately 10 years. These results can be used to determine the appropriate prescribed burning intervals for a desired fire severity.

Download or read book May Burns Stimulate Growth of Longleaf Pine Seedlings written by Harold E. Grelen and published by . This book was released on 1978 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spring burn aids longleaf pine seedling height growth written by William R. Maple and published by . This book was released on 1977 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Fire on Southern Pine written by Dale D. Wade and published by . This book was released on 1986 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Restoring the Longleaf Pine Pinus Palustris Forests Using Pineywoods Cattle Grazing in Conjunction with Prescribed Burning written by Lance Tyler Albin and published by . This book was released on 2014 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The longleaf pine (Pinus palustris) is major forest constituent of the Southern Coastal Plains of the United States. Ecologically, a virgin longleaf pine forests supports increased species richness. Since the 1800s, longleaf pine forests have been exploited as a massive source of commercial products (e.g., lumber, pulp, and naval stores). A decrease in species richness has been recorded following this vast decrease in longleaf pine presence. Rebuilding the longleaf pine ecosystem is essential for restoring species richness and maintaining the ecological health of many Costal Plains habitats. Presently, the most popular restoration and management method utilized is prescribed burning. Prescribed burnings allow small, controlled fires to safely mimic the effects of naturally occurring wildfires. More recently, interest in the use of prescribed burning in the longleaf pine forests has increased because of the potential applications for reducing forests floor fuel loads and increasing species richness. A lesser-known practice of restoration is the implementation of grazing by cattle populations. Previous studies have shown an increase in species richness and a decrease in litter-cover when sites were introduced to grazing. Little research studying the interactions between grazing and prescribed burning has been conducted, however. We studied the effects of prescribed burns and grazing at the Longleaf Preserve, located in the Lake Thoreau Environmental Research Center (LTEC) in Hattiesburg, Mississippi. A series of treatment sites were constructed to determine the influence of grazing by pineywoods cattle and prescribed burns on plant diversity and physiognomy of the forest floor. These sites were subjected to four different treatments in an attempt to replicate current environmental conditions. Fuel loads (i.e., available material for burning) were assessed by collecting data on fine and course litter (e.g., fallen leaves, twigs, branches), as well as, understory plant species richness. The litter samples were collected, dried, and placed on a scale to determine weight. The plant species within each sample were then separated based on morphology. The preliminary results indicate that combining pineywoods cattle grazing with a prescribed burning regimen is an effective means of decreasing leaf-litter cover and increasing species richness on the forest floor. --Page iv.

Download or read book The Longleaf Pine in Virgin Forest written by George Frederick Schwarz and published by . This book was released on 1907 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Prescribed Burning Activity in Remnant Longleaf Pine Pinus Palustris Ecosystems of North and South Carolina written by Mark David Knott and published by . This book was released on 2001 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Linking Plant Demography Forest Fuels and Fire in Longleaf Pine Pinus Palustris Savannas Using LIDAR Remote Sensing and Simulation Modeling written by Eva Louise Loudermilk and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A longleaf pine - hardwood simulation model was created to link population level tree dynamics with fuel characteristics and stochastic fire regimes. This is the first known modeling work to simulate interactions between longleaf pine and hardwoods. Spatial components included seed dispersal (including pine seed masting), clonal spreading (for hardwoods), fuel dispersal and distribution, and competition from neighboring trees. Evaluations with in situ data were promising for two modeled longleaf pine sites. Tree distributions and community stability were examined with varying fire frequency. The model was especially useful in identifying scientific knowledge gaps associated with plant competition and facilitation, especially in relation to hardwood demography. The model ultimately provided a foundation for studying fuel and fire heterogeneity influences on population dynamics.

Download or read book Perceptions Regarding Longleaf Pine Ecosystem Restoration Using Prescribed Fire written by Samrajya Bikram Thapa and published by . This book was released on 2018 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: When restored to full ecological function, longleaf pine (Pinus palustris) forests are among the most diverse forest ecosystems in the world. For the last several decades, substantial amount of efforts has taken place on public land, comparably less work has been accomplished on private lands towards longleaf pine restoration. The overall goal of this research was to examine the factors influencing the application of prescribed fire for ecological restoration on private land. This research employed both qualitative and quantitative method to explore challenges and opportunities for restoring the ecosystem. The survey examined interest among the forest landowners and general public regarding longleaf pine restoration management using prescribed fire. Key informant interviews examined factors associated with the decision making for the use of prescribed fire. Research findings have implications for designing and implementing policy instruments and improving landowners’ decision regarding processes.

Download or read book Perceptions Regarding Longleaf Pine Ecosystem Restoration Using Prescribed Fire written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: When restored to full ecological function, longleaf pine ( Pinus palustris ) forests are among the most diverse forest ecosystems in the world. For the last several decades, substantial amount of efforts has taken place on public land, comparably less work has been accomplished on private lands towards longleaf pine restoration. The overall goal of this research was to examine the factors influencing the application of prescribed fire for ecological restoration on private land. This research employed both qualitative and quantitative method to explore challenges and opportunities for restoring the ecosystem. The survey examined interest among the forest landowners and general public regarding longleaf pine restoration management using prescribed fire. Key informant interviews examined factors associated with the decision making for the use of prescribed fire. Research findings have implications for designing and implementing policy instruments and improving landowners decision regarding processes.

Download or read book Emissions and Impacts from Prescribed Fire in a Longleaf Pine Ecosystem written by Scott J. Strenfel and published by . This book was released on 2010 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prescribed fire is a frequently utilized land-management tool in the Southeastern US. In this study, effects of seasonal-related variations and of turbulence generation on emissions and impacts from prescribed fires were evaluated. High frequency in situ data were obtained from three summer (July 2008) and three winter (January 2009) fires within the active burn perimeter and downwind by use of a 10 m instrumented tower and 2 m tripod, respectively. Two cases were selected to evaluate the performance of the EPA-approved short-range regulatory dispersion model, AERMOD, for prescribed fire applications. Results showed that summer fuels were much greener than winter fuels and did not burn as efficiently, thus resulting in enhanced particulate and CO emissions during summer fires compared to winter. Statistically significant correlations between turbulence, modified combustion efficiency, and pollutant concentrations were found. For both cases, AERMOD was able to reproduce the observed period and hourly averaged downwind particulate concentrations.

Download or read book Effects of Fire Exclusion on the Longleaf Pine Ecosystem of the Upland Island Wilderness written by Ira V. McWhorter and published by . This book was released on 2005 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vegetation and fuel conditions of longleaf pine (Pinus palustris) communities in Upland Island Wilderness and Boykin Spring Longleaf, a Texas Natural Heritage Site, in the Angelina National Forest were evaluated in order to understand the effects of fire suppression and exclusion in the wilderness. Statistical analysis and multivariate ordination techniques were used to compare areas of reduced fire frequency in the wilderness with areas in the adjacent, frequently burned Texas Natural Heritage Site and to relate differences within and among the areas to important environmental and site variables. The major environmental and site variables identified in the study were percent canopy, management intensity, and soil moisture availability as related to topographic position and soil conditions. Percent canopy was highly correlated with management history and fire frequency and appeared to have a substantial influence on herbaceous and woody vegetation. Midstory encroachment was highly correlated with percent canopy and soil moisture conditions influenced by topographic position, soil texture, depth to subsoil, and aspect. It was inferred from the results that fire frequency and management history were important underlying factors that interacted with environmental variables to influence vegetation distribution. The results of the study suggest that vegetation and fuels in Upland Island Wilderness have been substantially affected by reduced fire frequency and that a comprehensive program of prescribed burning will be needed to restore historical ecosystem conditions and reduce hazardous fuels.

Download or read book Dendroclimatological Analysis and Fire History of Longleaf Pine Pinus Palustris Mill in the Atlantic and Gulf Coastal Plain written by Joseph P. Henderson and published by . This book was released on 2006 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: