Fluxes and transformations of nitrogen in a high-elevation catchment, Sierra Nevada

The fluxes and transformations of nitrogen (N) were investigated from 1985 through 1987 at the Emerald Lake watershed (ELW), a 120 ha high-elevation catchment located in the southern Sierra Nevada, California, USA. Up to 90% of annual wet deposition of N was stored in the seasonal snowpack; NO3- and...

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Bibliographic Details
Published in:Biogeochemistry 1995-01, Vol.28 (1), p.1-31
Main Authors: Williams, M.W, Bales, R.C, Brown, A.D, Melack, J.M
Format: Article
Language:English
Subjects:
Acid soils
ammonium compounds
biogeochemical cycles
biological activity in soil
deposition
Earth sciences
Earth, ocean, space
Exact sciences and technology
Geochemistry
Groundwater
high altitude
Marine and continental quaternary
mineralization
Mineralogy
mountain soils
nitrates
nitrification
Nitrogen
nutrient uptake
organic nitrogen compounds
Silicates
snow
Snowmelt
Snowpack
soil organic matter
Soil water
Streams
Surface water
Surficial geology
Vegetation
Water geochemistry
Watersheds
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Summary:The fluxes and transformations of nitrogen (N) were investigated from 1985 through 1987 at the Emerald Lake watershed (ELW), a 120 ha high-elevation catchment located in the southern Sierra Nevada, California, USA. Up to 90% of annual wet deposition of N was stored in the seasonal snowpack; NO3- and NH4+ were released from storage in the form of an ionic pulse, where the first fraction of meltwater draining from the snowpack had concentrations of NO3- and NH4+ as high as 28 μ eq L-1 compared to bulk concentrations of $
ISSN:0168-2563
1573-515X
DOI:10.1007/bf02178059