This project has been running for 4 y and has
gained a two year extension from additional funding. Dr. Sabine
Grunwald is the PI, along with Drs. N. Comerford, D. Graetz
and M. Clark as Co-PI’s. Drs. Chris Bliss and Isabel Lopez-Zamora
were our post-docs on the project. Later, Dr. Greg Bruland joined
the sampling team when Isabel left. The field sampling has been
completed, which consisted of 6 sampling periods of 144 sites
over 3 yr.
The original objectives of this project were to determine the
level of NO3 found in the soil solution under various land uses
in the Santa Fe River Watershed; and spatially evaluate their
potential impact on water quality of the Santa Fe River. Our
major interest in the project was to compare the Forest Land
Use to the other land uses in order to better understand how
forest management contrasted with crop, improved pasture and
range management.
Our conclusions are that the forest land use is a very low
NO3 producer and is not contributing in any significant way
to the eutrophication of the Santa Fe River.
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