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Critical Loads Of Sulfur And Nitrogen And Modeled Effects Of Deposition Reduction For Forested Ecosystems Of Great Smoky Mountainins National Park
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Book Synopsis Critical Loads of Sulfur and Nitrogen and Modeled Effects of Deposition Reduction for Forested Ecosystems of Great Smoky Mountainins National Park by : Linda H. Pardo
Download or read book Critical Loads of Sulfur and Nitrogen and Modeled Effects of Deposition Reduction for Forested Ecosystems of Great Smoky Mountainins National Park written by Linda H. Pardo and published by . This book was released on 2018 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Critical Loads of Sulfur and Nitrogen and Modeled Effects of Deposition Reduction for Forested Ecosystems of Great Smoky Mountains National Park by :
Download or read book Critical Loads of Sulfur and Nitrogen and Modeled Effects of Deposition Reduction for Forested Ecosystems of Great Smoky Mountains National Park written by and published by . This book was released on 2018 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Critical Loads of Sulfur and Nitrogen and Modeled Effects of Deposition Reduction for Forested Ecosystems of Great Smoky Mountainins National Park by : Linda H. Pardo
Download or read book Critical Loads of Sulfur and Nitrogen and Modeled Effects of Deposition Reduction for Forested Ecosystems of Great Smoky Mountainins National Park written by Linda H. Pardo and published by . This book was released on 2018 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Approaches for Estimating Critical Loads of Nitrogen and Sulfur Deposition for Forest Ecosystems on U.S. Federal Lands by : Linda H. Pardo
Download or read book Approaches for Estimating Critical Loads of Nitrogen and Sulfur Deposition for Forest Ecosystems on U.S. Federal Lands written by Linda H. Pardo and published by . This book was released on 2010 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Projected emissions of sulfur and nitrogen are expected to have continuing negative impacts on forests, in spite of reductions in sulfur emissions as a result of SO2 control programs. Sulfur and nitrogen emissions present serious long-term threats to forest health and productivity in the United States. This report is intended to explain the differences in approaches for calculating critical loads for forest ecosystems in Europe, Canada, and the United States; it is directed to air quality regulators and Federal Land Managers (FLMs) in the United States, and addresses concerns particular to U.S. Federal lands. The paper describes the basic mass balance approach for calculating critical loads, presents the various critical thresholds, and explains the assumptions inherent in the calculation and data selection procedure. The input necessary from FLMs in the process of estimating the critical load is described.
Book Synopsis Funding the Natural Resource Challenge, a Report to Congress, Fiscal Year ... by : United States. National Park Service
Download or read book Funding the Natural Resource Challenge, a Report to Congress, Fiscal Year ... written by United States. National Park Service and published by . This book was released on with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CLEAN POWER ACT... HEARINGS... S. HRG. 107-570... COMMITTEE ON ENVIRONMENT & PUBLIC WORKS, UNITED STATES SENATE... 107TH CONGRESS, 1ST & 2ND by :
Download or read book CLEAN POWER ACT... HEARINGS... S. HRG. 107-570... COMMITTEE ON ENVIRONMENT & PUBLIC WORKS, UNITED STATES SENATE... 107TH CONGRESS, 1ST & 2ND written by and published by . This book was released on 2003 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Air Pollution and Its Impacts on U.S. National Parks by : Timothy J. Sullivan
Download or read book Air Pollution and Its Impacts on U.S. National Parks written by Timothy J. Sullivan and published by CRC Press. This book was released on 2017-02-03 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: A variety of air pollutants are emitted into the atmosphere from human-caused and natural emissions sources throughout the United States and elsewhere. These contaminants impact sensitive natural resources in wilderness, including the national parks. The system of national parks in the United States is among our greatest assets. This book provides a compilation and synthesis of current scientific understanding regarding the causes and effects of these pollutants within national park lands. It describes pollutant emissions, deposition, and exposures; it identifies the critical (tipping point) loads of pollutant deposition at which adverse impacts are manifested.
Author :United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Clean Air, Wetlands, and Climate Change Publisher : ISBN 13 : Total Pages :768 pages Book Rating :4.:/5 (51 download)
Book Synopsis Clean Power Act by : United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Clean Air, Wetlands, and Climate Change
Download or read book Clean Power Act written by United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Clean Air, Wetlands, and Climate Change and published by . This book was released on 2002 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Assessment of Atmospheric Nitrogen and Sulfur Deposition Critical Loads for Aquatic and Terrestrial Resources on National Forest System Lands in the Intermountain Region by :
Download or read book Assessment of Atmospheric Nitrogen and Sulfur Deposition Critical Loads for Aquatic and Terrestrial Resources on National Forest System Lands in the Intermountain Region written by and published by . This book was released on 2021 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: A critical load (CL) is a science-based threshold that identifies the amount of pollutant deposition below which no significant ecological harm to an ecosystem component is expected. This report provides baseline critical load (CL) analyses for nitrogen (N) and sulfur (S) as required under the 2012 Planning Rule for forest plan assessments. The data also can be used to inform land management decisions where the effects of N and S deposition are relevant, including the evaluation of large projects through the National Environmental Policy Act, Prevention of Significant Deterioration (PSD) permitting program, wilderness monitoring, and watershed condition. Significant portions of the USDA Forest Service system lands in the Intermountain Region are exposed to N deposition levels that exceed CLs. Areas in exceedance have an increased risk of negative ecological effects. Nine of the 12 National Forests within the Intermountain Region have areas that exceed CLs for surface water acidification and therefore are at higher risk for declines in abundance and diversity of aquatic species. All 12 National Forests have areas that exceed CLs for surface water eutrophication, lichen species richness, forage lichen abundance, and tree species growth rate and probability of survival (over 10 years). In areas with increased risk of surface water eutrophication, competitive interactions and community structure of primary producers can shift and cause compounding effects within the food web. Diversity and abundance of key aquatic species may decrease to the point of extirpation. Areas that exceed CLs for lichen species richness and forage lichen abundance have an increased risk to experience reduced diversity, occurrence, and abundance of lichen species which can negatively affect other biota such as mammals, birds, and invertebrates, that rely on lichens for food, shelter, and camouflage. Areas with an increased risk for declines in tree growth rate and probability of survival may experience a change in the composition of forest communities.
Download or read book Index Medicus written by and published by . This book was released on 2004 with total page 2432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Book Synopsis Atmospheric Nitrogen Deposition to Global Forests by : Enzai Du
Download or read book Atmospheric Nitrogen Deposition to Global Forests written by Enzai Du and published by Elsevier. This book was released on 2023-10-22 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atmospheric Nitrogen Deposition in Global Forests: Spatial Variation, Impacts, and Management Implications provides the most comprehensive knowledge on spatial variation and ecological impacts of reactive nitrogen deposition in global forests, as well as forest management options to mitigate the negative impacts. Written and edited by international experts in the field, this book synthesizes recent research developments and insights in monitoring and modeling nitrogen deposition in global forests. The book also assesses ecological impacts of enhanced nitrogen deposition on forest structure and function and responses of forest ecosystems to decreasing nitrogen deposition in regions such as the European Union and North America. Finally, the book reviews indicators and thresholds for nitrogen saturation in global forests and analyzes remediation options to reduce impacts of excess nitrogen deposition. This is an important resource for researchers in forestry and biodiversity conservation, as well as graduate students, policymakers and others who want to understand environmental issues of reactive nitrogen deposition in global forests. Offers a systematic view of the ecological impacts of enhanced nitrogen deposition Provides the most comprehensive knowledge on spatial variation and the ecological impacts of reactive nitrogen deposition in global forests Presents expert research and findings on forest management options to remediate negative impacts
Book Synopsis Global Sulfur and Nitrogen Depositions by : Jiani Tan (Researcher in civil engineering)
Download or read book Global Sulfur and Nitrogen Depositions written by Jiani Tan (Researcher in civil engineering) and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing nitrogen (N) emissions caused by human activities lead to elevations of N deposition in the ecosystems. And excessive N deposition is associated with a host of environmental issues. This study investigates several issues about N deposition. First, we map the global distribution of N deposition with ensemble results of several global climate models. The model predictions of N wet deposition generally agree well with site observations over North America, Europe and East Asia, but model underestimation of NH4+ wet deposition exists over all three regions. And more studies are required for measurement-poor regions, some of which happen to be the most heavily polluted regions (i.e. China and India). Then, we investigate the two predominant drivers of future N deposition: anthropogenic emissions and climate changes. We examine the effectiveness of emission control on reducing N deposition over United States via modelling approach. NH3 emission abatement is not likely to cause significant reduction of reduced forms of nitrogen (NHx̳) deposition, owing to the current atmospheric level of gas-phase NH3. Long-range transport of air pollutants, as a potential impact of climate changes, increases the N burden on low emission intensity regions (i.e. Russia), coastal regions and Open Ocean, especially on those in the downwind regions of intensive emission sources. The impacts of excessive N deposition on terrestrial ecosystems are assessed by critical loads (CL), which is a threshold to show the natural capability on bearing N deposition. We collect several CLs from literature, and most of them were developed on regional scale (i.e. United States, Europe and China). In the practice of applying these datasets to access the exceedance of CLs, we find large uncertainties related to the land type classification, which may challenge the interpolation of results. We conduct a preliminary study on the deposition of phosphorus (P). The switches of nutrient limitation patterns from N-limited to P-limited by many ecosystems, due to inputs of N by human activities, draw the public attention on P deposition. But the lack of long-term measurement data and uncertainty on major parameters in the numerical simulations limit our understanding on the P budget.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1998 with total page 2312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biogeochemical Responses to Atmospheric Nitrogen Deposition in Subalpine Ecosystems of the Cascades by : Justin Paul Poinsatte
Download or read book Biogeochemical Responses to Atmospheric Nitrogen Deposition in Subalpine Ecosystems of the Cascades written by Justin Paul Poinsatte and published by . This book was released on 2017 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: We examined the influence of snow regime on subalpine ecosystem C and N cycling at Mount Rainier under ambient conditions and in climate change scenarios. Timing of snow release influenced ecosystem C and N storage and loss. Climate change may reduce snow accumulation by up to 80% at Mount Rainier by 2050. Snowpack loss may enhance ecosystem C and N accumulation during the growing season and increase winter N leaching.
Book Synopsis Spring Meeting by : American Geophysical Union. Meeting
Download or read book Spring Meeting written by American Geophysical Union. Meeting and published by . This book was released on 2001 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Calculating Critical Loads of Sulfur and Nitrogen for Hubbard Brook Experimental Forest and Loch Vale Watershed Using a Dynamic Biogeochemical Model (PnET-BGC) by : Maria Anna Henrica Martina Backx
Download or read book Calculating Critical Loads of Sulfur and Nitrogen for Hubbard Brook Experimental Forest and Loch Vale Watershed Using a Dynamic Biogeochemical Model (PnET-BGC) written by Maria Anna Henrica Martina Backx and published by . This book was released on 2004 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modelling and Mapping of Atmospheric Nitrogen and Sulphur Deposition and Critical Loads for Ecosystem Specific Assessment of Threats to Biodiversity in Germany - PINETI (Pollutant INput and EcosysTem Impact) by :
Download or read book Modelling and Mapping of Atmospheric Nitrogen and Sulphur Deposition and Critical Loads for Ecosystem Specific Assessment of Threats to Biodiversity in Germany - PINETI (Pollutant INput and EcosysTem Impact) written by and published by . This book was released on 2014 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
