Download or read book Effects of Water Quality on Sediment Nutrient Fluxes in the Brunswick River Estuary Northern N S W written by Anne Branch and published by . This book was released on 2000 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Quality in the Brunswick River written by Ross Williams and published by . This book was released on 1987 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Impact of Bioturbation on Nutrient Fluxes Across the Sediment water Interface in the Sandon River Estuary written by Cameron Perry and published by . This book was released on 1998 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nutrient Release from Sediments of the Torbay Drainage System South western Australia written by and published by . This book was released on 2005 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Impacts on Water Quality by Sediments and Nutrients Released During Extreme Bushfires written by and published by . This book was released on 2007 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarises the findings of a four year project to investigate the impacts on water quality of sediments and nutrients released following the 2001 bushfires in the Lake Burragorang catchment. Much of the SCA water supply catchments are forested, prone to wildfire, and thus potentially susceptible to the negative impacts of forest fires on reservoir water quality. The magnitude of fire impacts are determined by the size and intensity of the fire, and the co-incidence of subsequent rainfall events. Preliminary findings and observations after the Sydney 2001 fires showed that bushfires can have a significant impact on downstream water quality in Lake Burragorang. The 2001 fires were the largest in over 30 years and were followed by several significant rainfall events. This special set of circumstances provided an excellent opportunity to investigate the highly episodic, but potentially very significant, role of fires on the transfer of sediments and nutrients from hillslopes and their impact on the water quality of SCA water supply reservoirs. The research indicates that forest fire has the potential to cause large increases in the sediment and nutrient yield to Lake Burragorang, and other SCA water storages. The study found that significant amounts of mineral and organic sediment and attached nutrients were eroded from burnt hillslopes in the months following the fires. Some storage on flatter footslope areas indicates the capacity for these areas to act as hillslope sediment buffers. Given this capacity it may be important to avoid occurrence of fires of very high and extreme severity in these areas. The fire had a large impact on the characteristics of sediment delivered to the river network and the reservoir. Large amounts of material from surface erosion of hillslopes were to the river network draining the burnt area. Consequently, a high proportion of the post-fire river sediment was derived from surface erosion, in contrast to the pre-fire sediment sources which were dominated by erosion of sub-surface material from rivers and gullies. The post-fire Phosphorus concentration of river sediment was many times that pre-fire as a result. The sediment and nutrient yields to Lake Burragorang in post-fire runoff events were one to two orders of magnitude larger than in pre-fire conditions due to the vastly increased availability of sediment and nutrients. Given the importance of events in the delivery of post-fire sediment and nutrient delivery to the reservoir, monitoring the potential for an algae bloom following post-fire runoff events may be an important post-fire water quality management strategy. The characteristics of post-fire river sediment returned towards pre-fire conditions over four years as the pulse of sediment was stored and evacuated from the river network. The below-average rainfall and runoff in the post-fire period of vegetation recovery limited the total post-fire sediment yield to Lake Burragorang well below the potential yield that could have occurred in wetter conditions. The actual sediment yield was in fact below the mean-annual average yield, but still one to two orders of magnitude above the yield that would have occurred without the fire.

Download or read book Nutrient and Sediment Sources Affecting Water Quality in Emigrant Creek Northern NSW written by Katie Pratt and published by . This book was released on 2003 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Oxygen Demand and Nutrient Release from Sediments in the Upper Swan River Estuary written by Craig Smith and published by . This book was released on 2010 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In response to the identified need to better understand the role of sediments on estuarine water quality, a research partnership between the Department of Water and Geoscience Australia was established. The inventory of dissolved nutrients and the organic matter content in the sediments, the rate of nutrient release and the rate of oxygen consumption by sediments have all been studied. A report entitled Sediment water interaction in the Swan River Estuary (Smith et al. 2007) documents the findings of the Geoscience Australia surveys between 2000 and 2006 and focuses on the lower/central region of the estuary from Armstrong Spit to the confluence of Bennett Rock. This report documents the findings of three surveys from 2006-2009 focussing on sites upstream of Ron Courtney Island in the upper reaches of the estuary." --p. 1.

Download or read book Sediment Quality Assessment written by Graeme Batley and published by CSIRO PUBLISHING. This book was released on 2016-02-01 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contaminated sediments represent an ongoing threat to the health of aquatic ecosystems. The assessment of sediment quality is, therefore, an important concern for environmental regulators. Sediment quality guidelines are now well established in regulatory frameworks worldwide; however, practical guidance that covers all of the key aspects of sediment quality assessment is not readily available. In 2005, CSIRO published its highly cited Handbook for Sediment Quality Assessment. In the ensuing period, the science has advanced considerably. This practical guide is a revised and much expanded second edition, which will be a valuable tool for environmental practitioners. Written by experts in the field, it provides coverage of: sediment sampling; sample preparation; chemical analysis; ecotoxicology; bioaccumulation; biomarkers; and ecological assessment. In addition, detailed appendices describe protocols for many of the tests to be used.

Download or read book Eutrophication causes consequences and control written by Abid A. Ansari and published by Springer Science & Business Media. This book was released on 2010-10-17 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eutrophication continues to be a major global challenge to water quality scientists. The global demand on water resources due to population increases, economic development, and emerging energy development schemes has created new environmental challenges to global sustainability. Eutrophication, causes, consequences, and control provides a current account of many important aspects of the processes of natural and accelerated eutrophication in major aquatic ecosystems around the world. The connections between accelerated eutrophication and climate change, chemical contamination of surface waters, and major environmental and ecological impacts on aquatic ecosystems are discussed. Water quality changes typical of eutrophication events in major climate zones including temperate, tropical, subtropical, and arid regions are included along with current approaches to treat and control increased eutrophication around the world. The book provides many useful new insights to address the challenges of global increases in eutrophication and the increasing threats to biodiversity and water quality.

Download or read book Applications of Paleoenvironmental Techniques in Estuarine Studies written by Kaarina Weckström and published by Springer. This book was released on 2017-02-13 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this edited volume is to introduce the scientific community to paleoenvironmental studies of estuaries, to highlight the types of information that can be obtained from such studies, and to promote the use of paleoenvironmental studies in estuarine management. Readers will learn about the the application of different paleoecological approaches used in estuaries that develop our understanding of their response to natural and human influences. Particular attention is given to the essential steps required for undertaking a paleoecological study, in particular with regard to site selection, core extraction and chronological techniques, followed by the range of indicators that can be used. A series of case studies are discussed in the book to demonstrate how paleoecological studies can be used to address key questions, and to sustainably manage these important coastal environments in the future. This book will appeal to professional scientists interested in estuarine studies and/or paleoenvironmental research, as well as estuarine managers who are interested in the incorporation of paleoenvironmental research into their management programs.

Download or read book Successes Limitations and Frontiers in Ecosystem Science written by Michael L. Pace and published by Springer Science & Business Media. This book was released on 2013-12-01 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecosystem research has emerged in recent decades as a vital, successful, and sometimes controversial approach to environmental science. This book emphasizes the idea that much of the progress in ecosystem research has been driven by the emergence of new environmental problems that could not be addressed by existing approaches. By focusing on successes and limitations of ecosystems studies, the book explores avenues for future ecosystem-level research.

Download or read book Coastal Lagoons written by Michael J. Kennish and published by CRC Press. This book was released on 2010-06-15 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by an outstanding group of contributors, this book examines the function and structure of coastal lagoonal ecosystems and the natural and anthropogenic drivers of change that affect them, most notably nutrient over-enrichment from coastal watersheds and airsheds. The contributors target the susceptibility of coastal lagoons to eutrophication, the indicators of eutrophic conditions, the influences of natural factors such as major storms and other climate effects, and the resulting biotic and ecosystem impairments that have developed. The book compares biogeochemical and ecological response to nutrient enrichment and other pollutants in lagoonal estuaries to those in other estuarine types.

Download or read book Coastal Management in Australia written by Nick Harvey and published by University of Adelaide Press. This book was released on 2010 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: The coast is one of our most valuable assets but how is it being treated and what is being done to look after it? COASTAL MANAGEMENT IN AUSTRALIA is the first book to provide a comprehensive overview of this important subject. Interesting case studies are used to illustrate human impact on coastal processes as well as demonstrating the global significance of the coast and the international imperative to manage it properly. COASTAL MANAGEMENT IN AUSTRALIA introduces the background to the various coastal management systems operating in Australia and illustrates these with 'real world' examples from the different states and territories. Since this book was first published yet another parliamentary inquiry has been added to some 30 years of national inquiries into coastal management, with further calls for national co-ordination. In addition, the Australian government has focused attention on the potential risks of climate change for the Australian coast. Both authors have national and international coastal expertise; significant academic teaching experience in coastal processes and coastal management; coastal planning and policy skills; and have extensive government expertise in coastal management.

Download or read book Environment and Livelihoods in Tropical Coastal Zones written by International Rice Research Institute and published by CABI. This book was released on 2006-01-01 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the challenges people face in managing agricultural crops, aquaculture, fisheries and related ecosystems in inland areas of coastal zones in the tropics of Asia, Africa, Australia and South America. These challenges can create conflicts in the use of natural resources between different stakeholders. Through many case studies, the book discusses the nature of the conflicts and identifies what is known and not known about how to manage them. For example, some case studies relate to the trade-offs between enhancing agricultural production by constructing embankments to keep out saline water and maintaining not only the variety of rural livelihoods but also brackish aquatic biodiversity. Other case studies provide the lessons learnt from the conversion of mangrove forests to shrimp farms.

Download or read book Seagrasses of Australia written by Anthony W. D. Larkum and published by Springer. This book was released on 2018-07-27 with total page 791 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book takes the place of “Biology of Seagrasses: A Treatise on the Biology of Seagrasses with Special Reference to the Australian Region”, co-edited by A.W.D. Larkum, A.J. MaCComb and S.A. Shepherd and published by Elsevier in 1989. The first book has been influential, but it is now 25 years since it was published and seagrass studies have progressed and developed considerably since then. The design of the current book follows in the steps of the first book. There are chapters on taxonomy, floral biology, biogeography and regional studies. The regional studies emphasize the importance of Australia having over half of the world’s 62 species, including some ten species published for Australia since the previous book. There are a number of chapters on ecology and biogeography; fish biology and fisheries and dugong biology are prominent chapters. Physiological aspects again play an important part, including new knowledge on the role of hydrogen sulphide in sediments and on photosynthetic processes. Climate change, pollution and environmental degradation this time gain an even more important part of the book. Decline of seagrasses around Australia are also discussed in detail in several chapters. Since the first book was published two new areas have received special attention: blue carbon and genomic studies. Seagrasses are now known to be a very important player in the formation of blue carbon, i.e. carbon that has a long turnover time in soils and sediments. Alongside salt marshes and mangroves, seagrasses are now recognized as playing a very important role in the formation of blue carbon. And because Australia has such an abundance and variety of seagrasses, their role in blue carbon production and turnover is of great importance. The first whole genomes of seagrasses are now available and Australia has played an important role here. It appears that seagrasses have several different suites of genes as compared with other (land) plants and even in comparison with freshwater hydrophytes. This difference is leading to important molecular biological studies where the new knowledge will be important to the understanding and conservation of seagrass ecosystems in Australia. Thus by reason of its natural abundance of diverse seagrasses and a sophisticated seagrass research community in Australia it is possible to produce a book which will be attractive to marine biologists, coastal scientists and conservationists from many countries around the world.

Download or read book Coal Tar Creosote written by C. Melber and published by WHO. This book was released on 2004 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: On cover: IPCS International Programme on Chemical Safety. Published under the joint sponsorship of the United Nations Environment Programme, the International Labour Organization and the World Health Organization, and produced within the framework of the Inter-organization Programme for the Sound Management of Chemicals (IOMC)

Download or read book Aquatic Geomicrobiology written by Donald E. Canfield and published by Gulf Professional Publishing. This book was released on 2005-03-31 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbes catalyze countless chemical reactions in nature which control the chemistry of the environment. Aquatic Geomicrobiology looks at these reactions and their effect on the aquatic environments from the perspective of the microbes involved. The volume begins with three introductory chapters outlining the basic principles of microbial systematics, microbial ecology, and chemical thermodynamics. These provide a framework for exploring the microbial control of elemental cycling in the remaining chapters. Readers will learn how microbes control the cycling of elements, the structure of the microbial ecosystems involved, and what environmental factors influence the activities of microbial populations. Also available in hardback Written by international experts in the microbial ecology and biogeochemistry of aquatic systems Includes introductory chapters on microbial systematics, principles of microbial ecology, and chemical thermodynamics Contains over 1500 references