Influence Of Atmospheric Nitrogen Deposition On Nitrogen Leakage To Surface Water In Forest Ecosystems

Author : Stefan Löfgren
Publisher : Nordic Council of Ministers
ISBN 13 : 9788773036044
Total Pages : 64 pages
Book Rating : 4.48/5 ( download)

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Download or read book Influence of Atmospheric Nitrogen Deposition on Nitrogen Leakage to Surface Water in Forest Ecosystems written by Stefan Löfgren and published by Nordic Council of Ministers. This book was released on 1991 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Zhuo Feng
Publisher : Universitätsverlag Göttingen
ISBN 13 : 3941875817
Total Pages : 116 pages
Book Rating : 4.14/5 ( download)

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Download or read book Partitioning of Atmospheric Nitrogen Under Long-term Reduced Atmospheric Deposition Conditions in a Norway Spruce Forest Ecosystem written by Zhuo Feng and published by Universitätsverlag Göttingen. This book was released on 2010 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past century, anthropogenic activities have increased N input drastically to terrestrial ecosystems and influenced the global N cycle. Especially temperate forest ecosystems are affected in their productivity, species composition, soil chemistry and water quality. N input to forest ecosystems is retained in trees and soil. Excessive N is leached out or released as gases. The retention of N input in soils is mainly influenced by the stability of soil organic matter (SOM). Many forests in central Europe and North America have been subjected to N saturation, i.e. excessive N appeared as nitrate in the leachate below the rooting zone. Reduction of atmospheric N emission and consequent atmospheric N deposition is proposed to be the only practical long-term solution to improve N-saturated forest ecosystems. However, responses of N-saturated forest ecosystems to reduced atmospheric N deposition have been seldom investigated. In the present study, atmospheric deposition was manipulated through roof constructions below the canopy of a mature Norway spruce forest on the Solling plateau in central Germany. A £^(5)N tracer field and a density fractionation laboratory experiment were conducted in the present study to investigate the influence of long-term reduced atmospheric N deposition on the partitioning of atmospheric N in different forest ecosystem compartments as well as on the partitioning of atmospheric N retained in the soil in different SOM pools.

Author : Stefan Löfgren
Publisher :
ISBN 13 : 9789179963675
Total Pages : 52 pages
Book Rating : 4.76/5 ( download)

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Download or read book Influence of Atmospheric Nitrogen Deposition on Nitrogen Leakage to Surface Water in Forest Ecosystems written by Stefan Löfgren and published by . This book was released on 1991 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Enzai Du
Publisher : Elsevier
ISBN 13 : 0323998488
Total Pages : 306 pages
Book Rating : 4.82/5 ( download)

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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

Author : Frank S Gilliam
Publisher : Mdpi AG
ISBN 13 : 9783036520476
Total Pages : 172 pages
Book Rating : 4.73/5 ( download)

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Download or read book Responses of Forest Ecosystems to Nitrogen Deposition written by Frank S Gilliam and published by Mdpi AG. This book was released on 2021-10-29 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite effective global-scale legislation to restrict the emissions of nitrogen (N) into the atmosphere, atmospheric deposition of N remains high in many forested regions. In addition, many N-impacted forests still retain the imprint of N saturation, such as altered species composition and leaching of essential base cations. Accordingly, we need a further understanding of the complexities of N cycling in forest ecosystems and the effects of excess N on forest biodiversity and biogeochemical cycling. This volume explores these complexities, including effects on plants, plant assemblages, and forest biogeochemistry, by synthesizing research from Asia, Europe, and North America. Because of the widespread nature of current declines in N deposition, this book ends with a look to the future as N-impacted forests experience a return to lower levels of atmospheric deposition of N.

Author : S.J. Langan
Publisher : Springer
ISBN 13 : 9401733562
Total Pages : 258 pages
Book Rating : 4.64/5 ( download)

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Download or read book The Impact of Nitrogen Deposition on Natural and Semi-Natural Ecosystems written by S.J. Langan and published by Springer. This book was released on 2014-11-14 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an up-to-date synthesis of the understanding of the interaction between the emission of nitrogen, its deposition and impact on the most important components of natural and semi-natural ecosystems. The work consists of contributions from internationally renowned research scientists. Individual chapters deal with the factors and processes related to nitrogen deposition and soils, non-forest vegetation communities, forest ecosystems, and surface waters. The assessment of these impacts is discussed in terms of setting critical loads. The book is aimed at researchers, advanced course students and policy makers/advisors involved with aspects of the impact of air pollution.

Author :
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.71/5 ( download)

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Download or read book Nitrogen Pollution written by and published by . This book was released on 2003 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : John L. Malanchuk
Publisher : Nordic Council of Ministers
ISBN 13 : 9788773033692
Total Pages : 228 pages
Book Rating : 4.93/5 ( download)

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Download or read book The Role of Nitrogen in the Acidification of Soils and Surface Waters written by John L. Malanchuk and published by Nordic Council of Ministers. This book was released on 1989 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author :
Publisher :
ISBN 13 :
Total Pages : 307 pages
Book Rating : 4.34/5 ( download)

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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.

Author : Hui Wang
Publisher : Frontiers Media SA
ISBN 13 : 2832517056
Total Pages : 245 pages
Book Rating : 4.55/5 ( download)

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Download or read book Effects of nitrogen deposition on ecosystems above and belowground written by Hui Wang and published by Frontiers Media SA. This book was released on 2023-03-09 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: