Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Isotopic Determination Of Nitrogen Sources And Processing In The Neuse River
Download Isotopic Determination Of Nitrogen Sources And Processing In The Neuse River full books in PDF, epub, and Kindle. Read online Isotopic Determination Of Nitrogen Sources And Processing In The Neuse River ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Isotopic Determination of Nitrogen Sources and Processing in the Neuse River by : Daniel Michael Eisenstein
Download or read book Isotopic Determination of Nitrogen Sources and Processing in the Neuse River written by Daniel Michael Eisenstein and published by . This book was released on 1989 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stable Isotope Tracers of Nitrogen Sources to the Neuse River, North Carolina by :
Download or read book Stable Isotope Tracers of Nitrogen Sources to the Neuse River, North Carolina written by and published by . This book was released on 1990 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Use of Stable Isotopes of Carbon, Nitrogen, and Sulfur to Identify Sources of Nitrogen in Surface Waters in the Lower Susquehanna River Basin, Pennsylvania by : Charles A. Cravotta
Download or read book Use of Stable Isotopes of Carbon, Nitrogen, and Sulfur to Identify Sources of Nitrogen in Surface Waters in the Lower Susquehanna River Basin, Pennsylvania written by Charles A. Cravotta and published by . This book was released on 2002 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water-resources Investigations Report by :
Download or read book Water-resources Investigations Report written by and published by . This book was released on 2001 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Isotopic and Chemical Composition of Inorganic and Organic Water-quality Samples from the Mississippi River Basin, 1997-98 by :
Download or read book Isotopic and Chemical Composition of Inorganic and Organic Water-quality Samples from the Mississippi River Basin, 1997-98 written by and published by . This book was released on 2001 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Use of Stable Nitrogen Isotopes in Determining Nitrogen Sources Entering Louisiana Surface Waters by : R. D. DeLaune
Download or read book Use of Stable Nitrogen Isotopes in Determining Nitrogen Sources Entering Louisiana Surface Waters written by R. D. DeLaune and published by . This book was released on 1988 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Master's Theses Directories written by and published by . This book was released on 1992 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Isotopic Analysis of Nitrogen by Means of a Microwave Mass Spectrograph by : A. L. Southern
Download or read book The Isotopic Analysis of Nitrogen by Means of a Microwave Mass Spectrograph written by A. L. Southern and published by . This book was released on 1950 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Elements of Physical Oceanography by : John H. Steele
Download or read book Elements of Physical Oceanography written by John H. Steele and published by Academic Press. This book was released on 2009-12-16 with total page 643 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elements of Physical Oceanography is a derivative of the Encyclopedia of Ocean Sciences, 2nd Edition and serves as an important reference on current physical oceanography knowledge and expertise in one convenient and accessible source. Its selection of articles—all written by experts in their field—focuses on ocean physics, air-sea transfers, waves, mixing, ice, and the processes of transfer of properties such as heat, salinity, momentum and dissolved gases, within and into the ocean. Elements of Physical Oceanography serves as an ideal reference for topical research. References related articles in physical oceanography to facilitate further research Richly illustrated with figures and tables that aid in understanding key concepts Includes an introductory overview and then explores each topic in detail, making it useful to experts and graduate-level researchers Topical arrangement makes it the perfect desk reference
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of Nitrogen Stable Isotopes to Identify Sources of Nutrient Pollution by : Elizabeth A. Redon
Download or read book Application of Nitrogen Stable Isotopes to Identify Sources of Nutrient Pollution written by Elizabeth A. Redon and published by . This book was released on 2001 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrient pollution may perhaps be one of the oldest water quality problems and has recently been considered as one of the greatest threats to estuarine and coastal waters. Excessive nutrient loads have had a vast array of impacts on estuarine and coastal ecosystems globally. Direct negative effects include: shading out of benthic plant communities, hypoxia and anoxia due to increased biological oxygen demand, compositional change in plant and fauna! community structure and increased occurrences of harmful algal blooms. This has lead to decreased biodiversity, habitat, fisheries, tourism and aesthetics. So far environmental managers have had to rely on a posteriori assessments of the status of nutrient pollution, using indicators such as taxonomic shifts and changes in biological abundance, which have already occurred. By the time nutrient pollution is detected, restoration of habitats is costly and sometimes no longer an option. Therefore, there is a need for management tools to assess sources of nutrient loads before damage to estuarine and coastal ecosystems progresses beyond recovery. Early work using stable isotopes of dissolved inorganic nitrogen in groundwater samples demonstrated the potential for using stable isotopes to identify anthropogenic sources of nitrogen. These studies revealed that nitrogen sources such as fertilizers, soil organic nitrogen and wastewater nitrogen have isotopically distinct signatures that could be used to assess anthropogenic nitrogen contributions. Therefore, application of nitrogen stable isotope methods could potentially provide information on the anthropogenic nitrogen sources stimulating nutrient pollution in estuarine and coastal waters. However, when I assessed this approach for application, two sources of errors became apparent. First, laboratory isolation of dissolved inorganic nitrate from seawater delivered results depleted in 15N relative to the standard used to assess the method. Second, isotopic fractionation associated with nitrogen cycle processes complicates usage of an isotopic mass balance to solve for the nitrogen source and its fractional contribution based on isotopic data alone. As a result, isotopic analysis alone of dissolved inorganic nitrogen to determine anthropogenic sources of nutrient loads to estuarine and coastal waters is not a practical approach to obtain management information concerning nutrient pollution.
Book Synopsis Nitrogen Isotope Techniques by : Roger Knowles
Download or read book Nitrogen Isotope Techniques written by Roger Knowles and published by Academic Press. This book was released on 1992-10 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first laboratory manual to bring together basic procedures for measurement of stable and radioactive isotopes of nitrogen, with specific applications to plant, soil, and aquatic biology. This bench-top reference gives practical coverage of mass and emission spectrometry, nitrogen fixation, nitrification, and identification, organic nitrogen, and the radioactive isotope 13N. Methods are described so that researchers can adapt them, without the aid of outside references, to virtually any task they may encounter in investigations of nitrogen transformation processes. Serves as a practical guide for nitrogen isotope techniques Features studies of nitrogen transformations in terrestrial and aquatic systems Includes basic measurement techniques plus specific applications for stable and radioactive nitrogen isotopes Presents detailed protocols, overviews, and key references Includes fifty figures and sixteen tables Hands-on reference for both students and researchers
Book Synopsis Nitrogen Loading Sources and Eutrophication of the Neuse River Estuary, North Carolina by :
Download or read book Nitrogen Loading Sources and Eutrophication of the Neuse River Estuary, North Carolina written by and published by . This book was released on 1995 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Using Stable Isotopes of Nitrogen and Oxygen to Identify Sources of Nitrate in Three Creeks, Durham County, North Carolina, 2011-12 by : Kristen Bukowski McSwain
Download or read book Using Stable Isotopes of Nitrogen and Oxygen to Identify Sources of Nitrate in Three Creeks, Durham County, North Carolina, 2011-12 written by Kristen Bukowski McSwain and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Dynamics of Carbon and Nitrogen Stable Isotope Analysis of Aquatic Organisms Within the Grand River Watershed by : Heather Anne Loomer
Download or read book The Dynamics of Carbon and Nitrogen Stable Isotope Analysis of Aquatic Organisms Within the Grand River Watershed written by Heather Anne Loomer and published by . This book was released on 2008 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stable isotope analysis is a tool employed in ecological studies to provide information on the movement of elements and energy through a system. The stable carbon and nitrogen isotope analysis of aquatic organisms has been commonly used to address questions related to energy transfer between organisms and to identify the reliance of aquatic organisms on different sources of organic matter within the system. Within the rivers, stable isotope analysis has been used to describe food webs and connect conditions within the watershed with the river. The Grand River watershed is a predominantly agricultural watershed which receives inputs from ~26 MWWTP and is managed for flow by multiple large reservoirs and weirs. The stable isotope values of aquatic organisms within this watershed were analyzed from samples collected between May and September, 2007. Sites were selected in relation to three different municipal waste water treatment plants (MWWTP) in the centre of the watershed and along a 200 km stretch of the main stem of the Grand River. Results show that stable isotope analysis can be used to differentiate organisms collected from different sites and which represent different trophic levels within the river system under select conditions. Sites which are influences by inputs from organic matter or nutrients within distinct isotope values can be distinguished easily if the input is large and the isotope values are significantly distinct from background values. For smaller inputs changes in stable isotope values were not observed relative the background variability in the system. In this case, sites should be selected to allow for the characterization the variation in isotope values already occurring within the river. Samples collected later in the growing seasons have more distinctive isotope values are between sites. At sites where seasonal variation is greater, the organisms collected may not show a clear separation between trophic levels. A lack of knowledge regarding the time period represented by the tissues of the organisms challenges interpretation these results. It is concluded that stable isotope values of aquatic organisms reflected the condition of this watershed. For nitrogen increasing loads from point sources were accompanied by increasing isotope values. Stable isotope values decreased over the river reach where recovery in river condition occurs as a result of ground water inputs. The influence of individual large MWWTP and reservoirs was observable and the management of the MWWTP and reservoir appears to affect the changes in isotope values which are observed.
Download or read book WRRI News written by and published by . This book was released on 1996 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Annual Report of the Director of the Geophysical Laboratory by : Carnegie Institution of Washington. Geophysical Laboratory
Download or read book Annual Report of the Director of the Geophysical Laboratory written by Carnegie Institution of Washington. Geophysical Laboratory and published by . This book was released on 1989 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
