Title
Historical land use change has lowered terrestrial silica mobilization Historical land use change has lowered terrestrial silica mobilization
Author
Faculty/Department
Faculty of Applied Economics
Faculty of Sciences. Biology
Publication type
article
Publication
Subject
Economics
Biology
Source (journal)
Nature communications
Volume/pages
1(2010) , p. 129,1-129,7
ISSN
2041-1723
Article Reference
129
ISI
000288224800027
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
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
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