The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here:

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Daniel Conley

Daniel Conley


Daniel Conley

Anthropogenic perturbations of the silicon cycle at the global scale: Key role of the land-ocean transition


  • G. G. Laruelle
  • V. Roubeix
  • A. Sferratore
  • B. Brodherr
  • D. Ciuffa
  • Daniel Conley
  • H. H. Durr
  • J. Garnier
  • C. Lancelot
  • Q. Le Thi Phuong
  • J. -D. Meunier
  • M. Meybeck
  • P. Michalopoulos
  • B. Moriceau
  • S. Ni Longphuirt
  • S. Loucaides
  • L. Papush
  • M. Presti
  • O. Ragueneau
  • P. Regnier
  • L. Saccone
  • C. P. Slomp
  • C. Spiteri
  • P. Van Cappellen

Summary, in English

Silicon (Si), in the form of dissolved silicate (DSi), is a key nutrient in marine and continental ecosystems. DSi is taken up by organisms to produce structural elements (e.g., shells and phytoliths) composed of amorphous biogenic silica (bSiO(2)). A global mass balance model of the biologically active part of the modern Si cycle is derived on the basis of a systematic review of existing data regarding terrestrial and oceanic production fluxes, reservoir sizes, and residence times for DSi and bSiO(2). The model demonstrates the high sensitivity of biogeochemical Si cycling in the coastal zone to anthropogenic pressures, such as river damming and global temperature rise. As a result, further significant changes in the production and recycling of bSiO(2) in the coastal zone are to be expected over the course of this century.


  • Quaternary Sciences

Publishing year





Global Biogeochemical Cycles



Document type

Journal article review


American Geophysical Union (AGU)


  • Geology




  • ISSN: 0886-6236