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Author : J. F. van Kessel
Publisher : Bernan Press(PA)
Page : 104 pages
File Size : 41,9 Mb
Release : 1976-01-01
Category : Denitrification
ISBN : 9022006204
Author : Peter G. Sly
Publisher : Springer Science & Business Media
Page : 514 pages
File Size : 52,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461249320
The first symposium on sediment/freshwater interactions was held in Amsterdam, in 1976, and the second was held at Kingston, Ontario, Canada, in 1981. The third symposium was held at the University of Geneva, in 1984, and also included a num ber of contributions dealing with sediment/saltwater interactions. It is expected that future symposia of this series will retain this approach, and that the revised sympo sium title will remain the same for later proceedings of these meetings. Because of the large number of submissions in 1984, many were given as poster presentations. Extended abstracts of all contributions to the Geneva symposium appear in Interactions Between Sediments and Ubter (C. E. P. Consultants Ltd. , 26 Albany St. , Edinburgh, EHI 3QH, U. K. , 1984). Full-length papers appear only in the proceedings. The format of the third symposium was similar to its predecessors. The location provided a particularly good opportunity for attendance by European scientists, who represented about 81% of the participants. About 16% came from North America and 3% were from Southeast Asia and Australia. It is unfortunate that there were no contributors from either Africa or South America, or other parts of Asia. In all, 16 countries were represented at this symposium. In a continuing attempt to provide equal opportunities for attendance by scientists from other parts of the world, it is planned to hold the next symposium in Australia in 1987. Further information about the symposia series can be obtained from Dr. E. D.
Author : M. Alexander
Publisher : Springer Science & Business Media
Page : 279 pages
File Size : 42,7 Mb
Release : 2013-11-11
Category : Medical
ISBN : 9781461582199
Microbial ecology has come of age. A long history of exploratory research and problem definition is admittedly behind us, and outstanding scientists from many regions of the world have contributed major findings to the development of the discipline. The early literature is indeed vast and impressive, yet it is still fair to say that the field is just beginning to develop in a mature fashion. The major microbial habitats and the chief inhabitants have been delineated and are only now being adequately explored; the processes that are brought about by the microscopic residents are at the present time being investigated in definitive ways; new concepts are being formulated; and novel, exciting, and useful techniques have been devised. In recognition of the emergence of microbial ecology as a rapidly growing and independent discipline, the International Commission on Microbial Ecology-a unit of the International Association of Micro biological Societies and the Division of Environmental Biology of the Inter national Union of Biological Societies-has established the Advances in Microbial Ecology and has appointed an editor and editorial board for the series. The purposes of this review series are to present in one group of volumes an overview of the information that is now spread in an enormous array of technical journals, to have authors in various areas of microbial ecology summarize and present views in depth of their own specialties, and to help promote the continued growth of microbial ecology.
Author : Michael Marcus Rutgers Van Der Loeff
Publisher : BRILL
Page : 93 pages
File Size : 54,7 Mb
Release : 1981
Category : History
ISBN : 9789004582910
Author : J.R. Freney,J.R. Simpson
Publisher : Springer Science & Business Media
Page : 325 pages
File Size : 49,7 Mb
Release : 2013-04-17
Category : Science
ISBN : 9789401716628
A growing interest has been shown recently in the dymanics of nitrogen in agricultural and natural ecosystems. This has been caused by increasing demands for food and fibre by a rapidly expanding world population, and by a growing concern that increased land clearing, cultivation and use of both fertilizer and biologically fixed nitrogen can have detrimental effects on the environment. These include effects on water quality, eutrophication of surface waters and changes in atmospheric composition all caused by increased cycling of nitrogenous compounds. The input and availability of nitrogen frequently affects the productivity of farming systems more than any other single management factor, but often the nitrogen is used inefficiently. Much of the fertilizer nitrogen applied to the soil is not utilised by the crop: it is lost either in solution form, by leaching of nitrate, or in gaseous forms as ammonia, nitrous oxide, nitric oxide or dinitrogen. The leached nitrate can contaminate rivers and ground waters, while the emitted ammonia can contaminate surface waters or combine with atmospheric sulfur dioxide to form aerosols which affect visibility, health and climate. There is also concern that increased evolution of nitrous oxide will deplete the protective ozone layer of the stratosphere. The possibility of a link between the intensity of agricultural use of nitrogen, nitrous oxide emissions and amounts of stratospheric ozone has focussed attention on these interactions.
Author : Herman J.P. Eijsackers,Timo Hamers
Publisher : Springer Science & Business Media
Page : 810 pages
File Size : 51,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401120081
Increasing awareness of the irreversible and long-lasting impacts of deterioration and pollution of soils and sediments has had an important influence on environmental policies and research in the last decade. The complexity of the soil and sediment systems and its processes cannot be tackled properly unless scientists from different disciplines work together. With this in mind, a number of multidisciplinary soil research programmes have been started in various European countries. They involve different disciplinary approaches and they aim at different fields of application: agriculture, land use and town and country planning, drinking water supply, nature management. The results that are now appearing need to be integrated in a scientifically sound and useful way. The first European Conference on Integrated Research for Soil and Sediment Protection and Remediation was intended to foster this. The volume contains the edited and selected proceedings of this Conference.
Author : Anonim
Publisher : Unknown
Page : 984 pages
File Size : 54,9 Mb
Release : 1991
Category : Water
ISBN : UOM:39015023848883
Author : Anonim
Publisher : Unknown
Page : 804 pages
File Size : 41,9 Mb
Release : 1991
Category : Hydrology
ISBN : UOM:39015022360526
Author : J. H. A. M. Steenvoorden
Publisher : Unknown
Page : 32 pages
File Size : 45,6 Mb
Release : 1979
Category : Water
ISBN : IND:30000138303031
Author : Niels Peter Revsbech,Jan Sørensen
Publisher : Springer Science & Business Media
Page : 352 pages
File Size : 55,8 Mb
Release : 2013-11-11
Category : Science
ISBN : 9781475799699
The formation of atmospheric nitrogen gas by denitrifying bacteria may represent a significant nutrient sink in natural ecosystems. The rate of denitrification has often been difficult to measure in situ, however, and new methodologies should stimulate research on distribution of activity in space and time. The load of fertilizer nitrogen in modem agriculture has led to increasing nutrient reservoirs in recipient subsoils, aquifers, inland waters and coastal seas. By its conversion of nitrate to atmospheric nitrogen, bacterial denitrification is the only biological process to potentially reduce the impact of increasing nutrient loadings by fertilizer nitrogen in the environment. As part of a scientific program set up by the Danish Ministry of Environment to study environment cycling of nitrogen, phosphorous and organic matter (NPO program) in the light of agricultural, domestic and industrial activities, a symposium on DENITRIFICATION IN SOIL AND SEDIMENT was held at the University of Aarhus, Denmark from 6-9 June 19i\9. On the basis of lectures given at the symposium, this book contains a number of invited contributions on the regulation of denitrification activity (control of enzyme synthesis and activity) and measurement of in situ rates of denitrification in terrestrial and aquatic environments (control factors, diel and seasonal variations, etc). Emphasis has been placed on including the recent improvements in methodologies and current understanding of process regulation, however the book also contains examples of integrated research on the significance of denitrification in environmental nutrient cycling.
Author : Raymond C. Loehr
Publisher : Butterworth-Heinemann
Page : 760 pages
File Size : 42,5 Mb
Release : 1979
Category : Business & Economics
ISBN : MINN:31951000058702B
Author : Stefan Schmutz,Jan Sendzimir
Publisher : Springer
Page : 571 pages
File Size : 47,8 Mb
Release : 2018-05-08
Category : Science
ISBN : 9783319732503
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 : Ian D. Jones,John P. Smol
Publisher : Elsevier
Page : 1105 pages
File Size : 49,9 Mb
Release : 2023-09-16
Category : Science
ISBN : 9780128227107
Wetzel’s Limnology: Lake and River Ecosystems, Fourth Edition, presents a fully updated revision of the classic textbook Limnology: Lake and River Ecosystems - last published in 2001. The coverage has been thoroughly updated with recent research and theoretical developments. Each chapter of this edited volume has been written by an expert, or team of experts, providing a comprehensive and global perspective, with the editors working closely with the authors to maintain continuity within and between the chapters. This is not only an essential textbook for undergraduate and graduate students in limnology but also a standard reference book for seasoned limnologists and other scientists. Chapters from the third edition have been updated by an international team of experts, incorporating developments from the past two decades Several new chapters have been added, reflecting exciting developments in the field of limnology New color illustrations and images throughout Detailed summaries at the end of each chapter
Author : Instituut voor Cultuurtechniek en Waterhuishouding
Publisher : Unknown
Page : 258 pages
File Size : 52,5 Mb
Release : 1979
Category : Groundwater
ISBN : WISC:89119921369
Author : J. W. Payne
Publisher : John Wiley & Sons
Page : 240 pages
File Size : 54,7 Mb
Release : 1981-09-23
Category : Medical
ISBN : UOM:39015001632838
New York ; Toronto : Wiley & Sons, c1981.