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Nitrogen Cycling And Nitrogen Saturation In Northern Hardwood Forest Ecosystems
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Book Synopsis Nitrogen Cycling and Nitrogen Saturation in Northern Hardwood Forest Ecosystems by : Linda Hildegarde Pardo
Download or read book Nitrogen Cycling and Nitrogen Saturation in Northern Hardwood Forest Ecosystems written by Linda Hildegarde Pardo and published by . This book was released on 1991 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interactions Between Land-use History, Nitrogen Cycling, and Beech Bark Disease in Northern Hardwood Forests by : Erika Ford Latty
Download or read book Interactions Between Land-use History, Nitrogen Cycling, and Beech Bark Disease in Northern Hardwood Forests written by Erika Ford Latty and published by . This book was released on 2001 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nitrogen Cycling in the Northern Hardwood Forest by : Lucas Emil Nave
Download or read book Nitrogen Cycling in the Northern Hardwood Forest written by Lucas Emil Nave and published by . This book was released on 2007 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Nitrogen (N) is the nutrient most limiting to plant growth (NPP) in temperate forests. In N-limited temperate forests, most of the N required for NPP is recycled between soil and plant N pools by the microbial process of N-mineralization (Nmin). However, human activities have increased atmospheric N deposition (Ndep) to forests in the last 50-100 years, and this surplus N may increase NPP. But, forest responses to Ndep are not satisfactorily understood, and depend on how atmospheric N inputs are partitioned between soils and plants. From my field data collection at a mature forest site, I estimated that NPP required 51 kg N ha−1 yr−1, most of which was used for fine root and leaf production (62% and 31%, respectively). Each year, Nmin supplied 87% of Nreq, and Ndep contributed an additional 13%, 4% of which was due to canopy retention of Ndep (Ncr). Data from my mesocosm 15N-labelling experiment suggested that very little (10%) of Ncr observed in the field was actually taken up by trees, and the majority of Ndep (85%) was assimilated into soil pools. These results suggest that Ndep could not have significantly increased forest NPP at UMBS over the time scale of my studies. My greenhouse experiment corroborated this conclusion, with tree seedlings showing no significant increase in photosynthesis or growth in response to Ndep at ambient rates. However, Ndep to forest ecosystems has been occurring for decades in industrialized regions, and most of the N inputs have been incorporated into soil organic matter (SOM). Research across temperate forests has suggested that forests exposed to large N inputs over time exhibit decreased soil C/N ratios, which are associated with faster Nmin rates. Using meta-analysis, I verified this pattern in the literature, and discovered novel relationships between forest soil properties and their responses to N inputs. My results demonstrated a long-term, quantitative relationship between Ndep and Nmin, and suggest that NPP may increase in temperate forests affected by Ndep.
Book Synopsis Nitrogen Dynamics Following Clear-cut Harvest of Northern Hardwood Ecosystems in Michigan by : William E. Holmes
Download or read book Nitrogen Dynamics Following Clear-cut Harvest of Northern Hardwood Ecosystems in Michigan written by William E. Holmes and published by . This book was released on 1997 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nitrogen Cycling in a Base-poor and a Relatively Base-rich Northern Hardwood Forest Ecosystem by : James Frederick Thorne
Download or read book Nitrogen Cycling in a Base-poor and a Relatively Base-rich Northern Hardwood Forest Ecosystem written by James Frederick Thorne and published by . This book was released on 1985 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Carbon and Nitrogen in Forest Ecosystems—Series I by : Yowhan Son
Download or read book Carbon and Nitrogen in Forest Ecosystems—Series I written by Yowhan Son and published by MDPI. This book was released on 2021-01-20 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the differences in carbon and nitrogen distribution and cycling both spatially and temporally using various approaches is essential in forest ecosystems. In addition, the influence of biotic and abiotic factors as well as natural and artificial disturbances on carbon and nitrogen cycling need to first be understood before drawing their implications to forest management practices. This Special Issue aims to understand carbon and nitrogen distribution and cycling in forest ecosystems for ecosystem-based forest management under different natural and artificial disturbances.
Book Synopsis The European Nitrogen Assessment by : Mark A. Sutton
Download or read book The European Nitrogen Assessment written by Mark A. Sutton and published by Cambridge University Press. This book was released on 2011-04-14 with total page 665 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting the first continental-scale assessment of reactive nitrogen in the environment, this book sets the related environmental problems in context by providing a multidisciplinary introduction to the nitrogen cycle processes. Issues of upscaling from farm plot and city to national and continental scales are addressed in detail with emphasis on opportunities for better management at local to global levels. The five key societal threats posed by reactive nitrogen are assessed, providing a framework for joined-up management of the nitrogen cycle in Europe, including the first cost-benefit analysis for different reactive nitrogen forms and future scenarios. Incorporating comprehensive maps, a handy technical synopsis and a summary for policy makers, this landmark volume is an essential reference for academic researchers across a wide range of disciplines, as well as stakeholders and policy makers. It is also a valuable tool in communicating the key environmental issues and future challenges to the wider public.
Book Synopsis Nitrogen Loss from Northern Hardwood Forests Five Years Following Clear-cut Harvest by : Thomas M. Iseman
Download or read book Nitrogen Loss from Northern Hardwood Forests Five Years Following Clear-cut Harvest written by Thomas M. Iseman and published by . This book was released on 1997 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Acid Rain - Deposition to Recovery by : Peter Brimblecombe
Download or read book Acid Rain - Deposition to Recovery written by Peter Brimblecombe and published by Springer Science & Business Media. This book was released on 2007-12-11 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book looks at the sources and composition of the atmosphere and rainfall, with particular attention on acidifying components and those that affect ecosystems. It further widens the subject to look at trace metals. It includes papers on the impact of deposition on soils and forests and the recovery of the natural environment. Work on critical loads makes a contribution to understanding the degree to which deposition must be reduced to limit its impact.
Book Synopsis Experimental Evaluation of Nitrogen Saturation in a Northern Hardwood Forest by : James H. Porter
Download or read book Experimental Evaluation of Nitrogen Saturation in a Northern Hardwood Forest written by James H. Porter and published by . This book was released on 1990 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seasonal Patterns of Microbial, Biomass and Nitrogen Mineralization in Northern Hardwood Forests by : William E. Holmes
Download or read book Seasonal Patterns of Microbial, Biomass and Nitrogen Mineralization in Northern Hardwood Forests written by William E. Holmes and published by . This book was released on 1993 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sensitivity Analysis of a Nitrogen Cycling Model for a Northern Hardwood Forest by : Jessica Frances Sheldon
Download or read book Sensitivity Analysis of a Nitrogen Cycling Model for a Northern Hardwood Forest written by Jessica Frances Sheldon and published by . This book was released on 2003 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nutrient Cycling in Forest Ecosystems by : Robert G. Qualls
Download or read book Nutrient Cycling in Forest Ecosystems written by Robert G. Qualls and published by MDPI. This book was released on 2020-12-03 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: The long-term productivity of forest ecosystems depends on the cycling of nutrients. The effect of carbon dioxide fertilization on forest productivity may ultimately be limited by the rate of nutrient cycling. Contemporary and future disturbances such as climatic warming, N-deposition, deforestation, short rotation sylviculture, fire (both wild and controlled), and the invasion of exotic species all place strains on the integrity of ecosystem nutrient cycling. Global differences in climate, soils, and species make it difficult to extrapolate even a single important study worldwide. Despite advances in the understanding of nutrient cycling and carbon production in forests, many questions remain. The chapters in this volume reflect many contemporary research priorities. The thirteen studies in this volume are arranged in the following subject groups: • N and P resorption from foliage worldwide, along chronosequences and along elevation gradients; • Litter production and decomposition; • N and P stoichiometry as affected by N deposition, geographic gradients, species changes, and ecosystem restoration; • Effects of N and P addition on understory biomass, litter, and soil; • Effects of burning on soil nutrients; • Effects of N addition on soil fauna.
Download or read book The NITREX Project written by N. B. Dise and published by . This book was released on 1991 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nitrogen Cycling and Net Primary Production in Temperate Forest Ecosystems by : Knute John Nadelhoffer
Download or read book Nitrogen Cycling and Net Primary Production in Temperate Forest Ecosystems written by Knute John Nadelhoffer and published by . This book was released on 1983 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Managing Nitrogen Economies of Natural and Man Made Forest Ecosystems by : Robert Anthony Rummery
Download or read book Managing Nitrogen Economies of Natural and Man Made Forest Ecosystems written by Robert Anthony Rummery and published by . This book was released on 1981 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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
