Download or read book Nitrogen Fixation in Lichens at Kevo North Finland written by and published by . This book was released on 1977 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on Elemental Nitrogen Fixation in Lichens in North Finland written by Sinikka Kallio and published by . This book was released on 1976 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Developments in Biological Nitrogen Fixation written by N. S. Subba Rao and published by Cambridge University Press. This book was released on 1984 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume discusses the most recent advances in biological nitrogen fixation, with chapters written by experts on the ecology, physiology, biochemistry and genetics of biological nitrogen fixation.
Download or read book Physiological Ecology of Lichens written by Kenneth A. Kershaw and published by Cambridge University Press. This book was released on 1985-06-27 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a critical and selective review of lichen physiological ecology.
Download or read book Lichen Physiology and Cell Biology written by D. H. Brown and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is currently impossible to grow lichens under controlled conditions in the laboratory in sufficient quantity for physiological experiments. Lichen growth is slow and conditions which might accelerate the process tend to favour either the algal or fungal partner, resulting in the breakdown of balance symbiosis. Lichen physiologists are therefore forced to use field-grown material with all the problems associated with the unknown influences of unpredictable and unreproducible climatic conditions. Study of major biochemical topics, such as the nature of the carbohydrate and nitrogenous compounds passing between the symbionts, is less influenced by climatic conditions than the intrinsic nature of the symbionts and many advances have been made in these areas. Recently, the challenge of using field-grown plant material, the physiological status of which is intimately linked to environmental conditions, has proved to be a stimulus rather than a hindrance to a number of research groups. The occurrence of lichens in extreme habitats has prompted a number of field and laboratory studies with material from such diverse localities as the cold deserts of Antarctica and the temperate rain forests of the New Zealand bush. A comparative approach, using contrasted species or habitats from a particular geographical region has yielded much information and an appreciation of the variety of physiological adaptations which may exist. The close linkage between morphology and physiology is now being directly demonstrated, as is the relevance of ultrastructural information.
Download or read book Biological nitrogen fixation in forest ecosystems foundations and applications written by John C. Gordon and published by Springer Science & Business Media. This book was released on 1983-09-30 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silvicultural systems and biological nitrogen fixation; Morphology of nitrogen fixers in forest ecosystems; Taxonomy and distribution of non-legume nitrogen-fixing systems; Isolation and culture of nitrogen-fixing organisms; Wheeler, biochemical, physiological and environmental aspects of symbiotic nitrogen fixation; Analysis of nitrogen fixation; Agricultural and horticultural systems: implications for forestry; Nitrogen fixing plants in forest plantation management; Nitrogen fixation in North American forestry: research and application; Application of biological nitrogen fixation in European silviculture; Nitrogen fixation in Southeast Asian forestry: research and practice; Biological nitrogen fixation in forestry: research and practice in Australia and New Zealand.
Download or read book Nitrogen the Confer N s written by K. van der Hoek and published by Elsevier. This book was released on 2012-12-02 with total page 813 pages. Available in PDF, EPUB and Kindle. Book excerpt: The First International Nitrogen Conference provided an opportunity for researchers and decision-makers to exchange information on environmental pollution by nitrogen compounds on three scales: global, continental/regional and local. The main topics were air, ground water and surface water pollution; emission sources, atmospheric chemistry, deposition processes and effects; disturbance of nitrogen cycles, critical loads and levels; assessments, policy development and evaluation; target groups and abatement techniques; and new approaches leading to an integrated abatement strategy.The peer-reviewed papers from the Conference presented in this volume will provide readers with a comprehensive review of the transport, deposition and impact on ecosystems of nitrogen.
Download or read book Nitrogen Phosphorus and Sulphur Utilisation by Fungi written by British Mycological Society. Symposium and published by Cambridge University Press. This book was released on 1989-05-11 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text/reference is broadly based, covering four basic areas: physiology and metabolism of nitrogen, phosphorus and sulphur by fungi; the role of these minerals in pathogenic relationships with plants; their role in mutualistic relationships with plants; and the role of saprotrophic fungi in cycling of the elements through ecosystems. Annotation.
Download or read book Advances in Biology and Ecology of Nitrogen Fixation written by Takuji Ohyama and published by BoD – Books on Demand. This book was released on 2014-01-29 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological nitrogen fixation has essential role in N cycle in global ecosystem. Several types of nitrogen fixing bacteria are recognized: the free-living bacteria in soil or water; symbiotic bacteria making root nodules in legumes or non-legumes; associative nitrogen fixing bacteria that resides outside the plant roots and provides fixed nitrogen to the plants; endophytic nitrogen fixing bacteria living in the roots, stems and leaves of plants. In this book there are 11 chapters related to biological nitrogen fixation, regulation of legume-rhizobium symbiosis, and agriculture and ecology of biological nitrogen fixation, including new models for autoregulation of nodulation in legumes, endophytic nitrogen fixation in sugarcane or forest trees, etc. Hopefully, this book will contribute to biological, ecological, and agricultural sciences.
Download or read book Reports from the Kevo Subarctic Research Station written by and published by . This book was released on 1972 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fennoscandian Tundra Ecosystems written by Frans Emil Wielgolaski and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: The term Fennoscandia is used to denote Finland and the Scandinavian peninsula, which comprises Norway and Sweden and sometimes also neigh bouring districts of the USSR. The western part of the Scandinavian peninsula is mountainous with peaks mostly within the range 1000-2000 m above sea level. Permafrost is not usually found in the southern districts of these alpine zones, but occurs in the northeastern part of Fennoscandia in mire, even at a low elevation. If tundra is defined as areas of permafrost, only very limited regions of Fennoscandia could be included. However, in the present volumes, we have used the word tundra in a broader sense as approximating areas with mean annual air 0 temperature below 0 C at meteorological standard height (1.5-2 m); it is often used in this sense in North America. This usage allows all alpine zones to be included, along with the subalpine birch zone and certain open subarctic woodland ("forest tundra" in Russian usage).
Download or read book Arctic Ecosystems in a Changing Climate written by F. Stuart Chapin III and published by Academic Press. This book was released on 2012-12-02 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: The arctic region is predicted to experience the earliest and most pronounced global warming response to human-induced climatic change. This book synthesizes information on the physiological ecology of arctic plants, discusses how physiological processes influence ecosystem processes, and explores how climate warming will affect arctic plants, plant communities, and ecosystem processes. Reviews the physiological ecology of arctic plants Explores biotic controls over community and ecosystems processes Provides physiological bases for predicting how the Arctic will respond to global climate change
Download or read book The Fungal Community written by John Dighton and published by CRC Press. This book was released on 1992-06-26 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt: Entirely rewritten and updated throughout, this Second Edition maintains and enhances the features of the first edition. The Fungal Community, Second Edition continues to cover the entire spectrum of fungal ecology, from studies of individual fungal populations to the functional role of fungi at the ecosystem level, and to present mycological ecology as a rational, organized body of knowledge.;Acting as a bridge between mycological data and ecological theory, The Fungal Community, Second Edition offers such new features as an emphasis on the nonequilibrium perspective, including the impact of habitat disturbance and environmental stress; more information on the ecological genetics of fungal populations; a chapter on the fitness of genetically altered fungi when released into the environment; an examination of fungal morphological and physiological adaptations from the evolutionary ecologist's point-of-view; an explication of the effect of fungi and insect interactions on fungal community structure and decomposition processes; a section on the importance of fungi in determining patterns of plant community development; and a chapter on modeling fungal contributions to decomposition and nutrient cycling in ecosystems.;With over 3700 references, The Fungal Community, Second Edition is a resource for mycologists; microbial ecologists; microbiologists; geneticists; virologists; plant pathologists; cell and molecular biologists; biotechnologists; soil, forest, and environmental scientists; and graduate-level students in these disciplines.
Download or read book Canadian Journal of Botany written by and published by . This book was released on 1983-10 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Ecosystems in the Alaskan Taiga written by K. van Cleve and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: The information presented in this book is the result of combined research efforts of scientists at the University of Alaska, Fairbanks, the Institute of Northern Forestry, USDA Forest Service, and the Systems Ecology Research Group, San Diego State University. The objective of the volume is to present a synthetic overview of structure and function of taiga forest ecosystems in interior Alaska. The data base for this work has appeared in earlier published articles including the special issue of the Canadian Journal of Forest Research Volume 13:5 (1983). Stimulus for this book was a conference held in Fairbanks from June 10-14, 1983. The papers presented at the conference were fore runners of the chapters in this book. We invited 19 scientists from North America and England to critique our research and synthesis efforts. Six of these people were asked to write introductory chapters for each section of the book. Formal presentation sessions, combined with field trips to research sites, introduced the invitees to the primary and secondary successional ecosystems with which we were dealing. A major wildfire, only 24 km from the University campus, was contained the week prior to the conference and one field trip provided graphic evidence of fire impact in subarctic forests. The conference conveners regretted that it was not possible to host a similar meeting during synthesis efforts in mid-January.
Download or read book CRC Handbook of Lichenology written by Margalith Galun and published by CRC Press. This book was released on 1988-09-30 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: This easy-to-read handbook provides a comprehensive review of the current knowledge on lichens. The structure of lichens and their dual nature is explained, as well as the physiology of interaction of the symbionts. The way lichens reproduce and their ecology is included, with methods for cultivating them and their isolated symbionts. Extremely useful as a text of lichenology, this handbook will benefit students of lichenology and allied fields, those interested in symbiotic associations and ecology, and teachers of biology, botany, and ecology courses.
Download or read book Nitrogen Fixation by Free Living Micro Organisms written by William Duncan Patterson Stewart and published by CUP Archive. This book was released on 1975 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 1976 volume provides information, presented at an international symposium in Edinburgh, on the free-living nitrogen-fixing bacteria and blue-green algae. In addition to information on the distribution of the nitrogenase enzyme within these groups, their role in the soil and in aquatic systems is considered, as are the methods of measuring nitrogen fixation.
