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Author :
Publisher :
ISBN 13 : 9789157684509
Total Pages : 45 pages
Book Rating : 4.6/5 (845 download)
Download or read book Soil Nitrogen Fluxes and Root Uptake in the Boreal Forest written by and published by . This book was released on 2015 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pertti Hari
Publisher : Springer Science & Business Media
ISBN 13 : 1402087187
Total Pages : 607 pages
Book Rating : 4.4/5 (2 download)
Download or read book Boreal Forest and Climate Change written by Pertti Hari and published by Springer Science & Business Media. This book was released on 2008-09-24 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Forest Primary Production Research Group was born in the Department of S- viculture, University of Helsinki in the early 1970s. Intensive ?eld measurements of photosynthesis and growth of forest vegetation and use of dynamic models in the interpretation of the results were characteristic of the research in the group. Electric instrumentation was based on analogue techniques and the analysis of the obtained measurements was based on self-written programs. Joint research projects with the Research Group of Environmental Physics at the Department of Physics, lead by Taisto Raunemaa (1939–2006) started in the late 1970s. The two research groups shared the same quantitative methodology, which made the co-operation fruitful. Since 1980 until the collapse of the Soviet Union the Academy of Finland and the Soviet Academy of Sciences had a co-operation program which included our team. The research groups in Tartu, Estonia, lead by Juhan Ross (1925–2002) and in Petrozawodsk, lead by Leo Kaipiainen (1932–2004) were involved on the Soviet side. We had annual ?eld measuring campaigns in Finland and in Soviet Union and research seminars. The main emphasis was on developing forest growth models. The research of Chernobyl fallout started a new era in the co-operation between forest ecologists and physicists in Helsinki. The importance of material ?uxes was realized and introduced explicitly in the theoretical thinking and measurements.
Author : Robert G. Qualls
Publisher : MDPI
ISBN 13 : 3038976822
Total Pages : 238 pages
Book Rating : 4.0/5 (389 download)
Download or read book Carbon, Nitrogen and Phosphorus Cycling in Forest Soils written by Robert G. Qualls and published by MDPI. This book was released on 2019-06-21 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: The majority of carbon stored in the soils of the world is stored in forests. The refractory nature of some portions of forest soil organic matter also provides the slow, gradual release of organic nitrogen and phosphorus to sustain long term forest productivity. Contemporary and future disturbances, such as climatic warming, deforestation, short rotation sylviculture, the invasion of exotic species, and fire, all place strains on the integrity of this homeostatic system of C, N, and P cycling. On the other hand, the CO2 fertilization effect may partially offset losses of soil organic matter, but many have questioned the ability of N and P stocks to sustain the CO2 fertilization effect. Despite many advances in the understanding of C, N, and P cycling in forest soils, many questions remain. For example, no complete inventory of the myriad structural formulae of soil organic N and P has ever been made. The factors that cause the resistance of soil organic matter to mineralization are still hotly debated. Is it possible to “engineer” forest soil organic matter so that it sequesters even more C? The role of microbial species diversity in forest C, N, and P cycling is poorly understood. The difficulty in measuring the contribution of roots to soil organic C, N, and P makes its contribution uncertain. Finally, global differences in climate, soils, and species make the extrapolation of any one important study difficult to extrapolate to forest soils worldwide.
Author : Mark A. Sutton
Publisher : Cambridge University Press
ISBN 13 : 1139501372
Total Pages : 665 pages
Book Rating : 4.1/5 (395 download)
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.
Author : J. R. Wilson
Publisher :
ISBN 13 :
Total Pages : 470 pages
Book Rating : 4.F/5 ( download)
Download or read book Advances in Nitrogen Cycling in Agricultural Ecosystems written by J. R. Wilson and published by . This book was released on 1988 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen transformation processes; The nitrogen cycle in different systems; Advances in nitrogen methodology; 15N recovery techniques in the field.
Author : Enzai Du
Publisher : Elsevier
ISBN 13 : 0323998488
Total Pages : 306 pages
Book Rating : 4.3/5 (239 download)
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 : Intergouvernemental panel on climate change. Working group 1
Publisher : Cambridge University Press
ISBN 13 : 110705799X
Total Pages : 1553 pages
Book Rating : 4.1/5 (7 download)
Download or read book Climate Change 2013: The Physical Science Basis written by Intergouvernemental panel on climate change. Working group 1 and published by Cambridge University Press. This book was released on 2014 with total page 1553 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report also provides a comprehensive assessment of past and future sea level change in a dedicated chapter.
Author : Florencia Montagnini
Publisher : Springer Science & Business Media
ISBN 13 : 9783540237976
Total Pages : 312 pages
Book Rating : 4.2/5 (379 download)
Download or read book Tropical Forest Ecology written by Florencia Montagnini and published by Springer Science & Business Media. This book was released on 2005-03-24 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Importance pf tropical forests; characteristics of tropical forests; classification of tropical forests; deforestation in the tropics; management of tropical forests; plantatios and agroforestry systems; approaches for implementing sustainable management techniques.
Author : P. A. Matson
Publisher : John Wiley & Sons
ISBN 13 : 1444313819
Total Pages : 408 pages
Book Rating : 4.4/5 (443 download)
Download or read book Biogenic Trace Gases written by P. A. Matson and published by John Wiley & Sons. This book was released on 2009-05-27 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trace gases are those that are present in the atmosphere at relatively low concentrations. Small changes in their concentrations can have profound implications for major atmospheric fluxes, and thereore, can be used as indicators in studies of global change, global biogeochemical cycling and global warming. This new how-to guide will detail the concepts and techniques involved in the detection and measurement of trace gases, and the impact they have on ecological studies. Introductory chapters look at the role of trace gases in global cycles, while later chapters go on to consider techniques for the measurement of gases in various environments and at a range of scales. A how-to guide for measuring atmospheric trace gases. Techniques described are of value in addressing current concerns over global climate change.
Author : Pedro A. Sanchez
Publisher : Cambridge University Press
ISBN 13 : 1107176050
Total Pages : 685 pages
Book Rating : 4.1/5 (71 download)
Download or read book Properties and Management of Soils in the Tropics written by Pedro A. Sanchez and published by Cambridge University Press. This book was released on 2019-01-10 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-awaited second edition of classic textbook, brought completely up to date, for courses on tropical soils, and reference for scientists and professionals.
Author : Hari Shankar Srivastava
Publisher :
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.X/5 (4 download)
Download or read book Nitrogen Nutrition and Plant Growth written by Hari Shankar Srivastava and published by . This book was released on 1999 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text examines topics in nitrogen nutrition and plant growth including nutrition during seed germination and seedling formation, the physiology of nitrogen-fixing, and slow-release nitrogen fertilizers.
Author : Gordon Bonan
Publisher : Cambridge University Press
ISBN 13 : 1107043786
Total Pages : 459 pages
Book Rating : 4.1/5 (7 download)
Download or read book Climate Change and Terrestrial Ecosystem Modeling written by Gordon Bonan and published by Cambridge University Press. This book was released on 2019-02-21 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an essential introduction to modeling terrestrial ecosystems in Earth system models for graduate students and researchers.
Author : F. Stuart Chapin
Publisher : Oxford University Press
ISBN 13 : 0195154312
Total Pages : 369 pages
Book Rating : 4.1/5 (951 download)
Download or read book Alaska's Changing Boreal Forest written by F. Stuart Chapin and published by Oxford University Press. This book was released on 2006-01-12 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Boreal forest is the northern-most forest in the world, whose organisms and dynamics are shaped by low temperature and high latitude. The Alaskan Boreal forest is warming as rapidly as any place on earth, providing an opportunity to examine a biome as it adjusts to change. This book looks at this issue.
Author : Howard Griffith
Publisher : Garland Science
ISBN 13 : 0203501349
Total Pages : 720 pages
Book Rating : 4.2/5 (35 download)
Download or read book The Carbon Balance of Forest Biomes written by Howard Griffith and published by Garland Science. This book was released on 2004-08-15 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Carbon Balance of Forest Biomes provides an informed synthesis on the current status of forests and their future potential for carbon sequestration. This volume is timely, since convincing models which scale from local to regional carbon fluxes are needed to support these international agreements, whilst criticisms have been levelled at existing empirical approaches. One key question is to determine how well eddy-flux measurements at the stand-level represent regional-scale processes. This may be related to specific management practices (age, plantation, fertilisation) or simple bias in choosing representative sites (ease of access, roughness, proximity to physical barriers). The ecology and regeneration state of temperate, tropical and boreal forests under current climatic conditions are discussed, together with partitioning of photosynthetic and respiratory fluxes from soils and vegetation. The volume considers how to integrate contrasting methodologies, and the latest approaches for scaling from stand to the planetary boundary layer.
Author : Hans de Kroon
Publisher : Springer Science & Business Media
ISBN 13 : 9783540001850
Total Pages : 424 pages
Book Rating : 4.0/5 (18 download)
Download or read book Root Ecology written by Hans de Kroon and published by Springer Science & Business Media. This book was released on 2003-05-21 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the course of evolution, a great variety of root systems have learned to overcome the many physical, biochemical and biological problems brought about by soil. This development has made them a fascinating object of scientific study. This volume gives an overview of how roots have adapted to the soil environment and which roles they play in the soil ecosystem. The text describes the form and function of roots, their temporal and spatial distribution, and their turnover rate in various ecosystems. Subsequently, a physiological background is provided for basic functions, such as carbon acquisition, water and solute movement, and for their responses to three major abiotic stresses, i.e. hard soil structure, drought and flooding. The volume concludes with the interactions of roots with other organisms of the complex soil ecosystem, including symbiosis, competition, and the function of roots as a food source.
Author : Ole K. Borggaard
Publisher :
ISBN 13 : 9788798945017
Total Pages : 353 pages
Book Rating : 4.9/5 (45 download)
Download or read book Pedological Biogeochemistry written by Ole K. Borggaard and published by . This book was released on 2007 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roberto Pinton
Publisher : CRC Press
ISBN 13 : 1420005588
Total Pages : 472 pages
Book Rating : 4.4/5 (2 download)
Download or read book The Rhizosphere written by Roberto Pinton and published by CRC Press. This book was released on 2007-05-11 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the rhizosphere, exudates from plants and microorganisms as well as stable soil organic matter influence processes that can control plant growth, microbial infections, and nutrient uptake. As the chemistry and biochemistry of these substances becomes more and more clear, their study promises to shed light on the complex interactions between plan
