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Agashashok White Spruce Needle Gas Exchange 2007-2008

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Summary

This dataset includes measurements of white spruce needle gas exchange made under conditions of saturating light, ambient CO2 and optimum temperature. Also included are needle C and N concentrations and needle d15N and d13C. Measurements were made at breast height on 36 trees exposed to 4 experimental treatments established in June of 2006 (i.e., n=9): control, fertilized, watered and fertilized x watered. Fertilized trees received 5 g N m-2 yr-1 applied as granular NH4NO3, 2 g P m-2 yr-1 applied as granular P2O5 and 4 g K m-2 yr-1 applied as granular K2O. The watering experiment was carried out using a passive throughfall displacement system that increased the size of each precipitation event (~2x).

The study site is on a terrace next to the Agashashok River, Noatak National Preserve, AK (67.477, -162.216).

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Additional information

Identifier
Versions
  • 1.0 (2008-11-14)
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Related projects
Spatial Type point
Language English
Grant Code 0528748
ISO Topic Categories
  • biota
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GCMD Science Keywords Expand keywords
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Temporal coverage

Begin datetime 2007-06-09 00:00:00
End datetime 2008-08-24 23:59:59

Spatial coverage


Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 67.477, Minimum (South) Latitude: 67.477
Minimum (West) Longitude: -162.216, Maximum (East) Longitude: -162.216

Primary point of contact information

Patrick Sullivan <paddy@uaa.alaska.edu>

Additional contact information

Citation

Sullivan, P., Sullivan, P. 2008. Agashashok White Spruce Needle Gas Exchange 2007-2008. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D6H1304V. Accessed 16 Apr 2024.

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