Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Studies Of Nitrogen Fixation In Natural Fresh Waters full books in PDF, epub, and Kindle. Read online Studies Of Nitrogen Fixation In Natural Fresh Waters ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : John James Goering
Publisher :
ISBN 13 :
Total Pages : 330 pages
Book Rating : 4.:/5 (89 download)
Download or read book Studies of Nitrogen-fixation in Natural Fresh Waters written by John James Goering and published by . This book was released on 1962 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jonathan P. Zehr
Publisher : Springer Nature
ISBN 13 : 303067746X
Total Pages : 191 pages
Book Rating : 4.0/5 (36 download)
Download or read book Marine Nitrogen Fixation written by Jonathan P. Zehr and published by Springer Nature. This book was released on 2021-04-02 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims to serve as a centralized reference document for students and researchers interested in aspects of marine nitrogen fixation. Although nitrogen is a critical element in both terrestrial and aquatic productivity, and nitrogen fixation is a key process that balances losses due to denitrification in both environments, most resources on the subject focuses on the biochemistry and microbiology of such processes and the organisms involved in the terrestrial environment on symbiosis in terrestrial systems, or on largely ecological aspects in the marine environment. This book is intended to provide an overview of N2 fixation research for marine researchers, while providing a reference on marine research for researchers in other fields, including terrestrial N2 fixation. This book bridges this knowledge gap for both specialists and non-experts, and provides an in-depth overview of the important aspects of nitrogen fixation as it relates to the marine environment. This resource will be useful for researchers in the specialized field, but also useful for scientists in other disciplines who are interested in the topic. It would provide a possible text for upper division classes or graduate seminars.
Author : Herbert Ellis Allen
Publisher : Wiley-Interscience
ISBN 13 :
Total Pages : 488 pages
Book Rating : 4.3/5 (91 download)
Download or read book Nutrients in Natural Waters written by Herbert Ellis Allen and published by Wiley-Interscience. This book was released on 1972 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest thinking and research on nutrients have been brought together by experts in the chemical and biological sciences and in engineering. The authors represent educational institutions, government, and industry. The book features a broad discussion of the topic. In addition to chapters on the three principal nutrients (nitrogen, phosphorus, and carbon), chapters on nutrient geochemistry and nutrient regeneration in hypolimnetic waters are included. Both chemical and bioassay analyses of nutrients are discussed by experts in their respective fields. Computer models of nutrient biochemical processes are described with the use of many illustrations, so that even those unfamiliar with computer techniques can appreciate their utility.
Author : Sara Langer
Publisher : Murphy & Moore Publishing
ISBN 13 : 9781639873975
Total Pages : 246 pages
Book Rating : 4.8/5 (739 download)
Download or read book Nitrogen Fixation: Biology and Ecology written by Sara Langer and published by Murphy & Moore Publishing. This book was released on 2021-11-16 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: The process of converting atmospheric nitrogen into ammonia and other nitrogenous compounds in soil is termed as nitrogen fixation. Most of the biological nitrogen is fixed by prokaryotic bacteria. A few of these are cyanobacteria, azotobacter, azospirillum, rhizobium and bradyrhizobium. Clover, soybean, peanut, etc., are some of the plants which help in nitrogen fixation process. These processes are part of the nitrogen cycle. They are of utmost significance in agriculture as nitrogen is required for the synthesis of various organic compounds like amino acids, nucleic acids and proteins. Nitrogen is also fixed by natural phenomenon such as lightning. It is also responsible for the formation of nitrogen oxides which may react with water to form nitrous acid or nitric acid. The acids seep into the soil where they are converted into nitrates. This book includes some of the vital pieces of work being conducted across the world, on various topics related to nitrogen fixation. From theories to research to practical applications, case studies related to all contemporary topics of relevance to this field have been included in it. This book is a vital tool for all researching or studying the biological and ecological aspects of nitrogen fixation as it gives incredible insights into emerging trends and concepts.
Author : Hajime Takahashi
Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.:/5 (89 download)
Download or read book Nitrogen Fixation and Nitrogen Cycle written by Hajime Takahashi and published by . This book was released on 1975 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen fixation. Nitrogen-fixing blue-green algae used as green manure. Physiology and ecology of the nitrogen-fixing blue-green algae - contribution of blue-green algae to the nitrogen fixation in paddy soils. Non-leguminous root nodules in Japan (a supplementary report). Formation and functions of nitrogen fixing nodule in soybean allantoin formation in the symbiotic condition. Studies on symbiotic nitrogen fixation: nitrogen-fixing and hydrogenase activities in extracts of legume root nodules. Ecological study of free living nitrogen fixers in paddy soil. On the abundance of free-living nitrogen fixers in japanese forest soil. Effect of soil on nitrogen fixation by azotobacter vinelandii. Contribution to nitrogen fixation and soil fertility by photosynthetic bacteria. Nitrogen fixation in the open sea. Nitrogen balance in soil and water. On a meaning of life form of plants in relation to their nitrogen utilization. The immobilization and release of nitrogen in soil and the chemical characteristics of nitrogen in those processes. Fate of nitrogenous compounds in the soil. Fractionation of soil humus by ultrafiltration. Geochemical studies on the cycle of carbon and nitrogen in a mesotrophic lake. The diurnal variation of organic constituents of particulate matter in coastal water. Studies on the marine microorganisms taking part in the nitrogen cycle in the sea. The diurnal variation of the number of phytoplankton in natural sea water. Microorganisms related to mineralization of chitin in aquatic environments. Inorganic nitrogen metabolism in coastal and oceanic waters of the pacific.
Author : Edward J. Carpenter
Publisher : Elsevier
ISBN 13 : 1483288293
Total Pages : 919 pages
Book Rating : 4.4/5 (832 download)
Download or read book Nitrogen in the Marine Environment written by Edward J. Carpenter and published by Elsevier. This book was released on 2013-10-22 with total page 919 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen in the Marine Environment provides information pertinent to the many aspects of the nitrogen cycle. This book presents the advances in ocean productivity research, with emphasis on the role of microbes in nitrogen transformations with excursions to higher trophic levels. Organized into 24 chapters, this book begins with an overview of the abundance and distribution of the various forms of nitrogen in a number of estuaries. This text then provides a comparison of the nitrogen cycling of various ecosystems within the marine environment. Other chapters consider chemical distributions and methodology as an aid to those entering the field. This book discusses as well the enzymology of the initial steps of inorganic nitrogen assimilation. The final chapter deals with the philosophy and application of modeling as an investigative method in basic research on nitrogen dynamics in coastal and open-ocean marine environments. This book is a valuable resource for plant biochemists, microbiologists, aquatic ecologists, and bacteriologists.
Author : Igor A. Tikhonovich
Publisher : Springer Science & Business Media
ISBN 13 : 9401103798
Total Pages : 812 pages
Book Rating : 4.4/5 (11 download)
Download or read book Nitrogen Fixation: Fundamentals and Applications written by Igor A. Tikhonovich and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen fixation research is presented as a rapidly developing, synergistic area of modern science, using the methods of, and accumulating data from, many fundamental branches of biology and chemistry. These include catalytic mechanisms, protein structure and function, molecular organization of genes and the regulation of their activities, biochemistry of plants and microorganisms, the signalling and surface interactions between organisms, microbial taxonomy and evolution, formal and population genetics, and ecology. The relationships between biological nitrogen fixation research and different branches of applied biology are addressed and analyzed, such as: the monitoring of genetically engineered microorganisms, selection of plant-associated microbes, plant breeding, increasing the protein content of crops, providing ecologically safe food production, and diminishing the chemical pollution of the environment. Immediate impacts and long-term prospects for nitrogen fixation research are presented: both fundamentals and applications.
Author : Linda Rachel Finke
Publisher :
ISBN 13 :
Total Pages : 308 pages
Book Rating : 4.E/5 ( download)
Download or read book In Situ and Laboratory Studies of Nitrogen Fixation by Epiphytic Populations of Aquatic Plants written by Linda Rachel Finke and published by . This book was released on 1976 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : T. Henry Blackburn
Publisher :
ISBN 13 :
Total Pages : 488 pages
Book Rating : 4.:/5 (318 download)
Download or read book Nitrogen Cycling in Coastal Marine Environments written by T. Henry Blackburn and published by . This book was released on 1988-03-21 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen discharge to the coastal environment has been increasing, posing the threat of accelerated eutrofication. Considerable research has been conducted in recent years to examine the impact of the nitrogen loading in coastal ecosystems. Based on proceedings from a SCOPE symposium held at the University of Aarhus in July of 1985, this volume covers a variety of up-to-date developments in research on nitrogen cycling in coastal marine environments. Topics include the role of nitrogen in algal productivity, regeneration of nutrients in the water column and the sediments, and the flow of nitrogen in coastal ecosystems.
Author : David Robert Biggins
Publisher :
ISBN 13 :
Total Pages : 246 pages
Book Rating : 4.:/5 (89 download)
Download or read book Science and Society written by David Robert Biggins and published by . This book was released on 1973 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Guilherme N. Couto
Publisher :
ISBN 13 : 9781604564020
Total Pages : 0 pages
Book Rating : 4.5/5 (64 download)
Download or read book Nitrogen Fixation Research Progress written by Guilherme N. Couto and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen fixation is the process by which nitrogen is taken from its natural, relatively inert molecular form (N2) in the atmosphere and converted into nitrogen compounds (such as, notably, ammonia, nitrate and nitrogen dioxide) useful for other chemical processes. Nitrogen fixation is performed naturally by a number of different prokaryotes, including bacteria, actinobacteria, and certain types of anaerobic bacteria. Microorganisms that fix nitrogen are called diazotrophs. Some higher plants, and some animals (termites), have formed associations with diazotrophs. Nitrogen fixation also occurs as a result of non-biological processes. These include lightning, industrially through the Haber-Bosch process, and combustion. This book presents the latest research from around the world.
Author : Stefan Schmutz
Publisher : Springer
ISBN 13 : 3319732501
Total Pages : 562 pages
Book Rating : 4.3/5 (197 download)
Download or read book Riverine Ecosystem Management written by Stefan Schmutz and published by Springer. This book was released on 2018-05-08 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book surveys the frontier of scientific river research and provides examples to guide management towards a sustainable future of riverine ecosystems. Principal structures and functions of the biogeosphere of rivers are explained; key threats are identified, and effective solutions for restoration and mitigation are provided. Rivers are among the most threatened ecosystems of the world. They increasingly suffer from pollution, water abstraction, river channelisation and damming. Fundamental knowledge of ecosystem structure and function is necessary to understand how human acitivities interfere with natural processes and which interventions are feasible to rectify this. Modern water legislation strives for sustainable water resource management and protection of important habitats and species. However, decision makers would benefit from more profound understanding of ecosystem degradation processes and of innovative methodologies and tools for efficient mitigation and restoration. The book provides best-practice examples of sustainable river management from on-site studies, European-wide analyses and case studies from other parts of the world. This book will be of interest to researchers in the field of aquatic ecology, river system functioning, conservation and restoration, to postgraduate students, to institutions involved in water management, and to water related industries.
Author : S. H. Jenkins
Publisher : Elsevier
ISBN 13 : 1483226875
Total Pages : 773 pages
Book Rating : 4.4/5 (832 download)
Download or read book Proceedings of the Conference on Nitrogen as a Water Pollutant written by S. H. Jenkins and published by Elsevier. This book was released on 2013-10-02 with total page 773 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Conference on Nitrogen as a Water Pollutant
Author : Patrick L. Brezonik
Publisher :
ISBN 13 :
Total Pages : 564 pages
Book Rating : 4.:/5 (89 download)
Download or read book The Dynamics of the Nitrogen Cycle in Natural Waters written by Patrick L. Brezonik and published by . This book was released on 1968 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alexander Hollaender
Publisher : Springer Science & Business Media
ISBN 13 : 1468408801
Total Pages : 531 pages
Book Rating : 4.4/5 (684 download)
Download or read book Genetic Engineering for Nitrogen Fixation written by Alexander Hollaender and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 531 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a time in scientific research when a number of developments coincide making it possible to progress with a tough and complicated problem. It is believed that such a time has come in the area of biological nitrogen fixation. A better understanding of photosynthesis, cell hybridization, plasmid, and gene transfer between cells not necessarily genetically related, have opened new avenues of research. New developments in traditional genetics, cell biology, biochemistry, including enzyme chemistry, and plant physi ology have brought about the feeling this is a most appro priate time to pull together the different approaches in a conference where the lines of research could be discussed and thus help to speed up developments in this area. What makes biological nitrogen fixation especially im portant is the promise that a good understanding of the basic problem would help us to make organisms more amenable to fix nitrogen, not only in symbiosis with legumes, but also with other plant species and develop a wider variety of organisms with the ability to fix N • It will also 2 encourage a search for naturally occurring N2 fixing organ isms other than the traditional N2 fixers. Some success has already been encountered in this area. Success in broadening the field of nitrogen fixing would help to increase food supply, especially in de veloping countries which cannot afford to purchase synthetic nitrogen sources.
Author : International Association on Water Pollution Research. Danish National Committee
Publisher : Pergamon
ISBN 13 :
Total Pages : 1354 pages
Book Rating : 4.:/5 (318 download)
Download or read book Proceedings of the Conference on Nitrogen as a Water Pollutant, Copenhagen, August 18-20, 1975 written by International Association on Water Pollution Research. Danish National Committee and published by Pergamon. This book was released on 1977 with total page 1354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Riley Ann Baxter
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.3/5 (83 download)
Download or read book Estimation of the Contribution of Biological Nitrogen Fixation to the Nitrogen Budget in a Freshwater Lake written by Riley Ann Baxter and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen (N) is an essential nutrient for all organisms. A lack of N can limit primary production, but an excess of N can cause harmful algal blooms and consequences to freshwater quality. Freshwater environments contain N fixing organisms whose contribution to the N cycle through organic inputs remains unclear because their N fixation rates and controls are understudied. Without knowing how much N comes into the freshwater ecosystem from fixation, it is difficult to fully understand food webs, N cycling and difficult to manage nutrient pollution. This research addressed the question of how much N fixation contributes to the N budget of a freshwater lake in northeast Washington State. We measured N fixation rates in cyanobacteria and sediment bacteria using a 15N2 tracer method during an in-lab incubation. No correlation was found between N fixation rates and the environment's temperature, dissolved oxygen (mg/L), percent dissolved oxygen, pH, conductivity, nor total N and total phosphorus (P) water concentrations. However, a slight positive relationship between N:P rates in the water's surface and N fixation was observed. Although the rates we measured were low, we still found that the contribution of N from lake diazotrophs was similar to that of N inputs coming from allochthonous sources during autumn, suggesting that N fixation is seasonally important.
