1. Главная
  2. Ресурсы
  3. Библиотечный поиск
Reviews andsyntheses: Thebiogeochemical cycleof silicon in themodern ocean Paul TréguerJill SuttonMark A. Brzezinski2021 год

Reviews and syntheses: The biogeochemical cycle of silicon in the modern ocean
статья из журнала

Полный текстСтраница публикацииПубликация в OpenAlex
Аннотация: Abstract. The element silicon (Si) is required for the growth of silicified organisms in marine environments, such as diatoms. These organisms consume vast amounts of Si together with N, P, and C, connecting the biogeochemical cycles of these elements. Thus, understanding the Si cycle in the ocean is critical for understanding wider issues such as carbon sequestration by the ocean's biological pump. In this review, we show that recent advances in process studies indicate that total Si inputs and outputs, to and from the world ocean, are 57 % and 37 % higher, respectively, than previous estimates. We also update the total ocean silicic acid inventory value, which is about 24 % higher than previously estimated. These changes are significant, modifying factors such as the geochemical residence time of Si, which is now about 8000 years, 2 times faster than previously assumed. In addition, we present an updated value of the global annual pelagic biogenic silica production (255 Tmol Si yr−1) based on new data from 49 field studies and 18 model outputs, and we provide a first estimate of the global annual benthic biogenic silica production due to sponges (6 Tmol Si yr−1). Given these important modifications, we hypothesize that the modern ocean Si cycle is at approximately steady state with inputs =14.8(±2.6) Tmol Si yr−1 and outputs =15.6(±2.4) Tmol Si yr−1. Potential impacts of global change on the marine Si cycle are discussed.
Год издания: 2021
Авторы: Paul Tréguer, Jill Sutton, Mark A. Brzezinski, Matthew A. Charette, Tim DeVries, Stephanie Dutkiewicz, Claudia Ehlert, Jon Hawkings, Aude Leynaert, Sumei Liu, Natalia Llopis Monferrer, María López‐Acosta, Manuel Maldonado, Shaily Rahman, Lihua Ran, Olivier Rouxel
Издательство: Copernicus Publications
Источник: Biogeosciences
Ключевые слова: Geochemistry and Elemental Analysis, Marine and coastal ecosystems, Geology and Paleoclimatology Research
Другие ссылки: Biogeosciences (PDF)
Biogeosciences (HTML)
HAL (Le Centre pour la Communication Scientifique Directe) (PDF)
HAL (Le Centre pour la Communication Scientifique Directe) (HTML)
DOAJ (DOAJ: Directory of Open Access Journals) (HTML)
Institutional Archive of Ifremer (French Research Institute for Exploitation of the Sea) (HTML)
Publication Database GFZ (GFZ German Research Centre for Geosciences) (HTML)
HAL (Le Centre pour la Communication Scientifique Directe) (HTML)
HAL (Le Centre pour la Communication Scientifique Directe) (HTML)
Publication Database GFZ (GFZ German Research Centre for Geosciences) (PDF)
Publication Database GFZ (GFZ German Research Centre for Geosciences) (HTML)
Archimer (Ifremer) (HTML)
Aquila Digital Community (University of Southern Mississippi) (HTML)
Archimer (Ifremer) (HTML)
HAL (Le Centre pour la Communication Scientifique Directe) (HTML)
Open Access Server of the Woods Hole Scientific Community (Woods Hole Scientific Community) (PDF)
Open Access Server of the Woods Hole Scientific Community (Woods Hole Scientific Community) (HTML)
DIGITAL.CSIC (Spanish National Research Council (CSIC)) (PDF)
DIGITAL.CSIC (Spanish National Research Council (CSIC)) (HTML)
Institutional Archive of Ifremer (French Research Institute for Exploitation of the Sea) (HTML)