Download or read book Assessing the Effects of Fire Disturbances and Timber Management on Carbon Storage in the Greater Yellowstone Ecosystem written by Feng Zhao and published by . This book was released on 2018 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accurate characterization of Carbon (C) consequences of forest disturbances and management is critical for informed climate mitigation and adaptation strategies. While research into generalized properties of the forest C cycle informs policy and provides abstract guidance to managers, most management occurs at local scales and relies upon monitoring systems that can consistently provide C cycle assessments that explicitly apply to a defined time and place. We used an inventory-based forest monitoring and simulation tool to quantify C storage effects of actual fires, timber harvests, and forest regeneration conditions in the Greater Yellowstone Ecosystem (GYE). Results show that (1) the 1988 fires had a larger impact on GYE?s C storage than harvesting during 1985?2011; (2) continuation of relatively high harvest rates of the region?s National Forest land, which declined after 1990, would have shifted the disturbance agent primary importance on those lands from fire to harvest; and (3) accounting for local heterogeneity of post-disturbance regeneration patterns translates into large regional effects on total C storage. Large fires in 1988 released about 8.3 ± 0.3 Mg/ha of C across Yellowstone National Park (YNP, including both disturbed and undisturbed area), compared with total C storage reductions due to harvest of about 2.3 ± 0.3 Mg/ha and 2.6 ± 0.2 Mg/ha in adjacent Caribou-Targhee and Gallatin National Forests, respectively, from 1985?2011. If the high harvest rates observed in 1985?1989 had been maintained through 2011 in GYE National Forests, the C storage effect of harvesting would have quintupled to 10.5 ± 1.0 Mg/ha, exceeding the immediate losses associated with YNP?s historic fire but not the longer-term net loss of carbon (16.9 ± 0.8 Mg/ha). Following stand-replacing disturbance such as the 1988 fires, the actual regeneration rate was slower than the default regional average rate assumed by empirically calibrated forest growth models. If regeneration following the 1988 fire had reached regionally average rates, either through different natural circumstances or through more active management, YNP would have had approximately 4.1 Mg/ha more forest carbon by year 2020. This study highlights the relative effects of fire disturbances and management activities on regional C storage, and demonstrates a forest carbon monitoring system that can be both applied consistently across the US and tailored to questions of specific local management interest.
Download or read book Assessing the Effects of Fire Disturbance on Ecosystems written by and published by . This book was released on 1999 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Fire and Logging on Landscape Structure in the Greater Yellowstone Ecosystem written by Henry Bond Wilmer and published by . This book was released on 2000 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Long Term Post Disturbance Forest Recovery in the Greater Yellowstone Ecosystem Analyzed Using Landsat Time Series Stack written by Feng R. Zhao and published by . This book was released on 2016 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest recovery from past disturbance is an integral process of ecosystem carbon cycles, and remote sensing provides an effective tool for tracking forest disturbance and recovery over large areas. Although the disturbance products (tracking the conversion from forest to non-forest type) derived using the Landsat Time Series Stack-Vegetation Change Tracker (LTSS-VCT) algorithm have been validated extensively for mapping forest disturbances across the United States, the ability of this approach to characterize long-term post-disturbance recovery (the conversion from non-forest to forest) has yet to be assessed. In this study, the LTSS-VCT approach was applied to examine long-term (up to 24 years) post-disturbance forest spectral recovery following stand-clearing disturbances (fire and harvests) in the Greater Yellowstone Ecosystem (GYE). Using high spatial resolution images from Google Earth, we validated the detectable forest recovery status mapped by VCT by year 2011. Validation results show that the VCT was able to map long-term post-disturbance forest recovery with overall accuracy of ~80% for different disturbance types and forest types in the GYE. Harvested areas in the GYE have higher percentages of forest recovery than burned areas by year 2011, and National Forests land generally has higher recovery rates compared with National Parks. The results also indicate that forest recovery is highly related with forest type, elevation and environmental variables such as soil type. Findings from this study can provide valuable insights for ecosystem modeling that aim to predict future carbon dynamics by integrating fine scale forest recovery conditions in GYE, in the face of climate change. With the availability of the VCT product nationwide, this approach can also be applied to examine long-term post-disturbance forest recovery in other study regions across the U.S.
Download or read book Recovery of Forest Resources from the Greater Yellowstone Wildfires Exxon Valdez Oilspill and the Mount St Helens Eruption written by United States. Congress. House. Committee on Agriculture. Subcommittee on Forests, Family Farms, and Energy and published by . This book was released on 1991 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Topographic Mapping written by John N. Hatzopoulos and published by Universal-Publishers. This book was released on 2024-10-01 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is addressed to students and professionals, and it is aimed to cover as much as possible the broader region of topographic mapping as it has evolved into a modern field called geospatial information science and technology. More emphasis is placed on using scientific methods and tools materialized in algorithms and software to produce practical results. For this reason, beyond the written material, there are also many educational and professional software programs written by the first author to help comprehend the individual methodologies developed. The Target of this book is to provide the people who work in fields of applications of topographic mapping (environment, geology, geography, cartography, engineering, geotechnical, agriculture, forestry, geointelligence, etc.) a source of knowledge for the broader region so that to help them in facing relevant problems as well as in preparing contracts and specifications for such type of work assigned to professionals and evaluating such contracting results. It also aims to be a reference for theory and practice for professionals in Topographic Mapping. This book applies a didactics method where, with a relatively small effort, someone can digest a large volume of simple or complicated knowledge material at a desirable scientific depth within a relatively short time interval. The objective that educated people must be "smarter than the machine" and not treat the machine as a "black box" being "button pushers" has been achieved through the first author's experience in the USA and Greece, with relative success by adopting this didactics technique. There are 14 chapters, including Reference systems and Projections, Topographic instruments and Geometry of coordinates, Conventional construction of a topographic map, Design and reproduction of a thematic map, Digital Topographic mapping - GIS, Digital Terrain Models (DTM / DEM), GPS/GNSS, methods of Photogrammetry, Remote Sensing, new technologies LIDAR, IFSAR, Augmented reality, Mapping with UAS/UAV/Drones, the method of Least Squares adjustment, and Description of educational software accompanying the text.
Download or read book The Ecological Implications of Fire in Greater Yellowstone written by Jason M. Greenlee and published by . This book was released on 1996 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecological Consequences of the 1988 Fires in the Greater Yellowstone Area written by and published by . This book was released on 1989 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Carbon Sequestration in Forests written by Ross W. Gorte and published by DIANE Publishing. This book was released on 2009 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: (1) Background: Congressional Interest in Carbon Sequestration; (2) Carbon Cycling in Forests: The Forest Cycle; Forest Types: Tropical Forests; Temperate Forests; Boreal Forests; (3) Measuring and Altering Forest Carbon Levels: Forest Carbon Accounting; Land Use Changes; Forestry Events and Management Activities: Vegetation and Soil Carbon; Forest Events ¿ Wildfires; Forestry Practices; Wood Energy; Leakage: Land Use Leakage; Product Demand Leakage; Federal Government Programs: Federal Forests; Federal Assistance for State and Private Forestry; Federal Tax Expenditures; Federal Programs Affecting Land Use; Accounting for Forest Carbon Sequestration; (4) Conclusions. Table.
Download or read book The Greater Yellowstone Postfire Assessment written by and published by . This book was released on 1989 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecological Consequences of the 1988 Fires in the Greater Yellowstone Area written by and published by . This book was released on 1989 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Patterns and Trajectories of Postfire Plant Communities in Greater Yellowstone written by Nathaniel Kiel and published by . This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Changing global drivers are eroding ecosystem resilience. As change continues, determining the implications of ecosystem transformations must be coupled with "climate change education" and evidence-based undergraduate biology curricula to train the next generation of scientists. My dissertation addresses each need in turn. First, I use remote sensing and field studies to understand the drivers and effects of poor subalpine forest recovery following large, stand-replacing wildfire in the U.S. Northern Rocky Mountains. I ask: (1) how extensive is forest conversion to sparse or non-forest three decades after the 1988 Yellowstone fires, and what drives its distribution? (2) how does forest conversion affect subalpine forest understory plant communities, aboveground carbon stocks, and the potential for forest recovery? and (3) how do anomalously frequent (30-year fire-return interval) stand-replacing wildfires in forests adapted to historically infrequent (125-year fire-return interval) fires alter understory plant communities? I complement these studies with the development and assessment of new undergraduate curricula on systems thinking and biogeochemical cycling, incorporating gameplay and simple simulation modeling to ask: how do student attitudes toward and understanding of the nitrogen cycle change following game- and inquiry-based learning? Subalpine forest conversion 30 years after the 1988 fires was extensive, covering ~41,000 hectares of previously forested area primarily at higher elevations and further from surrounding unburned forest. While much of this area appears "locked in" to sparse or non-forest, other areas may yet recover to forest owing to seed pressure from ex situ and in situ sources. Understory plant communities increasingly resembled meadow communities where tree densities were lowest, and aboveground carbon stock recovery was diminished. Understory communities were also affected by minimal forest recovery following anomalously frequent fire, with shifts toward shade-intolerant species and species from lower elevation zones adapted to drier conditions. Finally, undergraduate students in an intermediate general ecology course self-identified improved attitudes toward and understanding of the nitrogen cycle, largely attributing these changes to gameplay of "The N Game" and active lecture. This research elucidates how changing climate and disturbance will alter forest ecosystems and how evidence-based teaching approaches may help train undergraduate students to address these and other global challenges.
Download or read book The Influence of Fire Interval and Climate on Successional Patterns in Yellowstone National Park written by Tania Schoennagel and published by . This book was released on 2002 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildland Fire in Ecosystems written by and published by . This book was released on 2005 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book After the Fires written by Linda L. Wallace and published by Yale University Press. This book was released on 2004-01-01 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Americans currently choose their president through the electoral college, an extraordinarily complex mechanism that may elect a candidate who does not receive the most votes. In this provocative book, George Edwards III argues that, contrary to what supporters of the electoral college claim, there is no real justification for a system that might violate majority rule. Drawing on systematic data, Edwards finds that the electoral college does not protect the interests of small states or racial minorities, does not provide presidents with effective coalitions for governing, and does little to protect the American polity from the alleged harms of direct election of the president. In fact, the electoral college distorts the presidential campaign so that candidates ignore most small states and some large ones and pay little attention to minorities, and it encourages third parties to run presidential candidates and discourages party competition in many states. Edwards demonstrates effectively that direct election of the president without a runoff maximizes political equality and eliminates the distortions in the political system caused by the electoral college.
Download or read book Effects of Timber Harvest Following Wildfire in Western North America written by David L. Peterson and published by DIANE Publishing. This book was released on 2010-11 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Timber harvest following wildfire leads to different outcomes depending on the biophysical setting of the forest, pattern of burn severity, operational aspects of tree removal, and other activities. Postfire logging adds to these effects by removing standing dead trees (snags) and disturbing the soil. The influence of postfire logging depends on the intensity of the fire, intensity of the logging operation, and mgmt. activities such as fuel treatments. Removal of snags reduces long-term fuel loads but generally results in increased amounts of fine fuels for the first few years after logging. Cavity-nesting birds, small mammals, and amphibians may be affected by harvest of standing dead and live trees, with negative effects on most species. Illustrations.
Download or read book Coordination and Management Review written by Jerry Monesmith and published by . This book was released on 1989 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
