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Library Human activities directly alter watershed dissolved silica fluxes

Human activities directly alter watershed dissolved silica fluxes

Human activities directly alter watershed dissolved silica fluxes

Resource information

Date of publication
December 2012
Resource Language
ISBN / Resource ID
AGRIS:US201400065947
Pages
125-138

Controls on chemical weathering, such as bedrock geology, runoff, and temperature, are considered to be the primary drivers of Si transport from the continents to the oceans. However, recent work has highlighted terrestrial vegetation as an important control over Si cycling. Here we show that at the regional scale (Southern New England, USA), land use/land cover (LULC) is an important variable controlling the net transport of Si from the land to the sea, accounting for at least 40% of dissolved Si (DSi) fluxes. A multiple linear regression model using average DSi fluxes from 25 rivers (>2,300 observations) shows the percent forest cover, as well as development and agricultural land use, to be significant (p 

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Authors and Publishers

Author(s), editor(s), contributor(s)

Carey, J. C.
Fulweiler, R. W.

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Data Provider
Geographical focus