The Biogeochemical Cycle Of Silicon In The Ocean

Author: Bernard Quéguiner
Editor: John Wiley & Sons
ISBN: 184821815X
Size: 11,51 MB
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In the biogeochemical dynamics of marine ecosystems, silicon is a major element whose role has, for a long time, been underestimated. It is however indispensable to the activity of several biomineralizing marine organisms, some of which play an essential role in the biological pump of oceanic carbon. This book presents notions indispensable to the knowledge on the silicon biogeochemical cycle in ocean systems, first of all describing the main quantitative analysis techniques and examination of the major organisms involved in the cycle. The author then moves on to study the most up-to-date processes to control the use of silicon and its regeneration in natural conditions, before mentioning the central role played by this original element in the control of all the biogeochemical cycles in the global ocean. The available information finally enables the global biogeochemical budget of silicon in the marine environment to be quantified.

Ecological Systems

Author: Rik Leemans
Editor: Springer Science & Business Media
ISBN: 1461457556
Size: 10,92 MB
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Earth is home to an estimated 8 million animal species, 600,000 fungi, 300,000 plants, and an undetermined number of microbial species. Of these animal, fungal, and plant species, an estimated 75% have yet to be identified. Moreover, the interactions between these species and their physical environment are known to an even lesser degree. At the same time, the earth’s biota faces the prospect of climate change, which may manifest slowly or extremely rapidly, as well as a human population set to grow by two billion by 2045 from the current seven billion. Given these major ecological changes, we cannot wait for a complete biota data set before assessing, planning, and acting to preserve the ecological balance of the earth. This book provides comprehensive coverage of the scientific and engineering basis of the systems ecology of the earth in 15 detailed, peer-reviewed entries written for a broad audience of undergraduate and graduate students as well as practicing professionals in government, academia, and industry. The methodology presented aims at identifying key interactions and environmental effects, and enabling a systems-level understanding even with our present state of factual knowledge.

The Oceans And Marine Geochemistry

Author: H. Elderfield
Editor: Elsevier
ISBN: 9780080451015
Size: 18,91 MB
Format: PDF
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The Treatise on Geochemistry is the first work providing a comprehensive, integrated summary of the present state of geochemistry. It deals with all the major subjects in the field, ranging from the chemistry of the solar system to environmental geochemistry. The Treatise on Geochemistry has drawn on the expertise of outstanding scientists throughout the world, creating the reference work in geochemistry for the next decade. Each volume consists of fifteen to twenty-five chapters written by recognized authorities in their fields, and chosen by the Volume Editors in consultation with the Executive Editors. Particular emphasis has been placed on integrating the subject matter of the individual chapters and volumes. Elsevier also offers the Treatise on Geochemistry in electronic format via the online platform ScienceDirect, the most comprehensive database of academic research on the Internet today, enhanced by a suite of sophisticated linking, searching and retrieval tools.

The Silicon Cycle

Author: Venugopalan Ittekkot
Editor: Island Press
ISBN: 9781597267823
Size: 15,16 MB
Format: PDF, Mobi
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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.

Biogeochemistry Of Marine Systems

Author: Kenneth D. Black
Editor: John Wiley & Sons
ISBN: 1405147792
Size: 13,15 MB
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Marine systems vary in their sensitivities to perturbation.Perturbation may be insidious – such as increasingeutrophication of coastal areas – or it may be dramatic– such as a response to an oil spillage or some otheraccident. Climate change may occur incrementally or it may beabrupt, and ecosystem resilience is likely to be a complex functionof the interactions of those assemblages or species mediating keybiogeochemical processes. Biogeochemistry of Marine Systems considers issues ofmarine system resilience, focusing on a range of marine systemsthat exemplify major global province types but are also interestingand topical in their own right, on account of their sensitivity tonatural or anthropogenic change or their importance as ecologicalservice providers. Authors concentrate on advances of the lastdecade.

Treatise On Geochemistry

Author: H. D. Holland
Editor:
ISBN: 9780080437514
Size: 10,39 MB
Format: PDF, Kindle
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Oceanography

Author: Tom Garrison
Editor:
ISBN:
Size: 18,42 MB
Format: PDF, ePub
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