The biogeochemical cycling of nutrients and heavy metals in anoxic freshwater sediments
Author : Yigang Song
Publisher :
Page : 270 pages
File Size : 41,19 MB
Release : 1994
Category :
ISBN :
Author : Yigang Song
Publisher :
Page : 270 pages
File Size : 41,19 MB
Release : 1994
Category :
ISBN :
Author : Yigang Song
Publisher : Springer
Page : 130 pages
File Size : 27,47 MB
Release : 1999
Category : Medical
ISBN :
Aquatic sediments are important sinks of inorganic and organic pollutants as well as of nutrients in highly industrialized and densely populated areas. As many aquatic organisms live in or on the sediments, polluted sediments provide a pathway for the chemicals to food-chain organisms, and finally to man. Sediment-water interactions play a fundamental role in biogeochemical cycling of the elements. One of the most important reactions is the mineralization of organic matter during early diagenesis, which not only leads to anoxic conditions connected with a recycling of nitrate, phosphate, and ammonia but changes the chemical bonding of heavy metals into more soluble species. Our study carried out on freshwater sediments enabled us to show whether heavy metals and nutrients are released into the overlying water under changes in physicochemical conditions. The information is important to water management and sediment dredging activities in harbour areas.
Author : Sema Sevi̇nç Şengör
Publisher :
Page : 330 pages
File Size : 22,92 MB
Release : 2007
Category :
ISBN :
Author : William M. Last
Publisher : Springer Science & Business Media
Page : 532 pages
File Size : 48,76 MB
Release : 2006-04-11
Category : Science
ISBN : 0306476703
Theory Instrumentation NIR analysis of sediment samples Uses of NIRS in palaeolimnology Future perspectives Summary References Fly-ash particles. Neil Rose 319 12. Introduction A brief history Methods of extraction and enumeration Temporal distribution Spatial distribution Source apportionment The future Summary Acknowledgements References Part III: Stable Isotope Techniques 13. Application of stable isotope techniques to inorganic and biogenic carbonates. Emi Ito 351 Introduction Nomenclature and systematics of lake-water Mg/Ca and Sr/Ca ratios of lake-water of dissolved inorganic carbon (DIC) Carbonates in lake-sediments Mollusks Ostracodes Charaphytes Isotope analysis Preparation of carbonate samples for isotope analysis Conclusions Summary Acknowledgments References 14. Carbon and oxygen isotope analysis of lake sediment cellulose: methods and applications. Brent B. Wolfe, Thomas W. D. Edwards, Richard J. Elgood & Kristina R. M. Beuning 373 xi Introduction Stable isotope tracers in lake Historical development Methods Key criteria for paleohydrologic reconstruction Applications Future research directions Summary Acknowledgements References Nitrogen isotopes in palaeolimnology. Michael R. Talbot 15. 401 Introduction Nitrogen in lakes: forms and distribution Nitrogen isotopes Nitrogen isotope studies in palaeolimnology: sampling and measurement Some examples Closing remarks Summary Acknowledgments References Glossary, acronyms and abbreviations 441 Index 493 xiii PREFACE The explosive growth of paleolimnology over the past two decades has provided impetus for the publication of this series of monographs detailing the numerous advances and new techniques being applied to the interpretation of lake histories. This is the second volume in the series and deals mainly with physical and geochemical analytical techniques.
Author : Richard W. Canavan
Publisher :
Page : 172 pages
File Size : 34,14 MB
Release : 2006
Category : Biogeochemical cycles
ISBN :
Biogeochemische kringlopen van nutriënten en spoormetalen in sediment van het Haringvliet en gevolgen van verzilting
Author : R. A. Khalid
Publisher :
Page : 252 pages
File Size : 14,62 MB
Release : 1977
Category : Analytical chemistry
ISBN :
Author : B. Markert
Publisher : Elsevier
Page : 595 pages
File Size : 31,83 MB
Release : 2000-08-24
Category : Science
ISBN : 0080543138
This volume discusses major areas of primary concern for the understanding of the complexity associated with ecological trace element research. These include sources and fates of trace elements; analytical techniques; and the distribution of trace elements in biota and soil and sediment reservoirs. Case studies, field work and laboratory studies intensively discussed in this volume are useful to enhance our knowledge about processes related to the biological response of trace metal stress under realistic environmental conditions.
Author : James Gill Moberly
Publisher :
Page : 130 pages
File Size : 48,15 MB
Release : 2006
Category : Bacteria
ISBN :
Author : Geert Arend van den Berg
Publisher :
Page : 154 pages
File Size : 16,42 MB
Release : 1998
Category : River sediments
ISBN :
Author : R. A. Khalid
Publisher :
Page : 344 pages
File Size : 21,52 MB
Release : 1977
Category : Analytical chemistry
ISBN :