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The Silicon Cycle

Human Perturbations and Impacts on Aquatic Systems

The Silicon Cycle
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Edited by Venugopalan Ittekkot, Daniela Unger, Christoph Humborg, and Nguyen Tac An; SCOPE

296 pages | 6 x 9
Scientific Committee on Problems of the Environment (SCOPE) Series
Silicon is among the most abundant elements on earth. It plays a key but largely unappreciated role in many biogeochemical processes, including those that regulate climate and undergird marine food webs.
 
The Silicon Cycle is the first book in more than 20 years to present a comprehensive overview of the silicon cycle and issues associated with it. The book summarizes the major outcomes of the project Land-Ocean Interactions: Silica Cycle, initiated by the Scientific Community on Problems of the Environment (SCOPE) of the International Council of Scientific Unions (ICSU). It tracks the pathway of silicon from land to sea and discusses its biotic and abiotic  modifications in transit as well as its cycling in the coastal seas. Natural geological processes in combination with atmospheric and hydrological processes are discussed, as well as human perturbations of the natural controls of the silicon cycle.

Lists of Figures and Tables

 

Preface

 

Acknowledgments

 

1. Introduction

        Venugopalan Ittekkot, Daniela Unger, Christoph Humborg, and Nguyen Tac An

 

2. Silicate Weathering in South Asian Tropical River Basins

         Vaidyanatha Subramanian, Venugopalan Ittekkot, Daniela Unger, and Natarajan Madhavan

                           

3. Silicon in the Terrestrial Biogeosphere

         Daniel J. Conley, Michael Sommer, Jean Dominique Meunier, Danuta Kaczorek, and Loredana Saccone                 

 

4. Factors Controlling Dissolved Silicate in Tropical Rivers

          Tim C. Jennerjahn, Bastiaan A. Knoppers, Weber F.L. de Souza, Gregg J. Brunskill, E. Ivan, L. Silva, and Seno Adi 

 

5. Dissolved Silica Dynamics in Boreal and Arctic Rivers: Vegetation Control over Temperature?

          Christoph Humborg, Lars Rahm, Erik Smedberg, Carl-Magnus Morth, Asa Danielsson

 

6. Dissolved Silica in the Changjiang (Yangtze River) and                            

Adjacent Coastal Waters of the East China Sea

           Jing Zhang, Su Mei Liu, Ying Wu, Xiao Hong Qi, Guo Sen Zhang, and Rui Xiang Li

 

7. Atmospheric Transport of Silicon   

           Ina Tegen and Karen E. Kohfeld

 

8. Estuarine Silicon Dynamics

           Lei Chou and Roland Wollast

 

9. Physiological Ecology of Diatoms Along the River-Sea Continuum

           Pascal Claquin, Aude Leynaert, Agata Sferratore, Josette Garnier, and Olivier Ragueneau 

 

10. Modelling Silicon Transfer Processes in River Catchments

           Josette Garnier, Agata Sferratore, Michel Meybeck, Gilles Billen, and Hans Durr

 

11. Role of Diatoms in Silicon Cycling and Coastal Marine Food Webs

           Olivier Ragueneau, Daniel J. Conley, Aude Leynaert, Sorcha Ni Longphuirt, and Caroline P. Slomp

         

12. Responses of Coastal Ecosystems to Anthropogenic Perturbations of Silicon Cycling

            Olivier Ragueneau, Daniel J. Conley, Aude Leynaert, Sorcha Ni Longphuirt, and Caroline P. Slomp

 

13. Silicon Isotope-Based Reconstructions of the Silica Cycle

            Christina L. De La Rocha

 

14. Long-Term Oceanic Silicon Cycle and the Role of Opal Sediment

            Christoph Heinze

 

15. The Perturbed Silicon Cycle

            Venugopalan Ittekkot, Daniela Unger, Christoph Humborg, and Nguyen Tac An

 

List of Contributors

 

SCOPE Series List

 

SCOPE Executive Committee 2005-2008

 

Index

 

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