Daniel Conley
Professor
Historical land use change has lowered terrestrial silica mobilization
Författare
Summary, in English
Continental export of Si to the coastal zone is closely linked to the ocean carbon sink and to the dynamics of phytoplankton blooms in coastal ecosystems. Presently, however, the impact of human cultivation of the landscape on terrestrial Si fluxes remains unquantified and is not incorporated in models for terrestrial Si mobilization. In this paper, we show that land use is the most important controlling factor of Si mobilization in temperate European watersheds, with sustained cultivation (> 250 years) of formerly forested areas leading to a twofold to threefold decrease in baseflow delivery of Si. This is a breakthrough in our understanding of the biogeochemical Si cycle: it shows that human cultivation of the landscape should be recognized as an important controlling factor of terrestrial Si fluxes.
Avdelning/ar
- Kvartärgeologi
Publiceringsår
2010
Språk
Engelska
Publikation/Tidskrift/Serie
Nature Communications
Volym
1
Dokumenttyp
Artikel i tidskrift
Förlag
Nature Publishing Group
Ämne
- Geology
Aktiv
Published
ISBN/ISSN/Övrigt
- ISSN: 2041-1723