Agashashok White Spruce Needle Gas Exchange 2007-2008 https://data.eol.ucar.edu/dataset/106.225 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). Identifiers * Local archive identifier: 106.225 * doi:10.5065/D6H1304V https://doi.org/10.5065/D6H1304V Versions 1.0 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 28 Mar 2024. Additional citation styles can be generated by entering the DOI at CrossCite (https://citation.crosscite.org/). Acknowledgement In addition to the citation reference and any other acknowledgements, please acknowledge NCAR/EOL in your publications with text such as: Data provided by NCAR/EOL under the sponsorship of the National Science Foundation. https://data.eol.ucar.edu/ Related projects * ARCSS: NSF Arctic System Science https://data.eol.ucar.edu/project/ARCSS Additional information * Spatial Type: point * Language: English Grant Code 0528748 ISO Topic Categories * biota Categories * Arctic * Biology * Ecology * Terrestrial Ecosystems * Vegetation Platforms * Field Surveys Instruments * Mass Spectrometers GCMD Science Keywords * EARTH SCIENCE > BIOSPHERE > VEGETATION > PLANT CHARACTERISTICS * EARTH SCIENCE > BIOSPHERE > VEGETATION > EVERGREEN VEGETATION * EARTH SCIENCE > BIOSPHERE > VEGETATION > CARBON * EARTH SCIENCE > BIOSPHERE > VEGETATION > NITROGEN Documentation * Agashashok_White_Spruce_Needle_Gas_Exchange_Readme.html [2 KiB] https://data.eol.ucar.edu/file/download/4199F5098E3/Agashashok_White_Spruce_Needle_Gas_Exchange_Readme.html Related links * companion: 106.223: Agashashok Microclimate https://data.eol.ucar.edu/dataset/106.223 * companion: 106.224: Agashashok White Spruce Branch Growth 2005-2008 https://data.eol.ucar.edu/dataset/106.224 * companion: 106.224: Agashashok White Spruce Branch Growth 2005-2008 https://data.eol.ucar.edu/dataset/106.224 * companion: 106.223: Agashashok Microclimate https://data.eol.ucar.edu/dataset/106.223 * info: ARCSS Data Policy https://data.eol.ucar.edu/arctic_projects/arcss/Data_Policy.html * homepage: ARCSS EOL Webpage https://www.eol.ucar.edu/field_projects/arcss * download: NSF Arctic Data Center https://doi.org/10.5065/D6H1304V Temporal coverage * Begin datetime: 2007-06-09 00:00:00 * End datetime: 2008-08-24 23:59:59 Spatial coverage * Maximum (North) Latitude: 67.477 * Minimum (South) Latitude: 67.477 * Minimum (West) Longitude: -162.216 * Maximum (East) Longitude: -162.216 Primary contact information * pointOfContact: Patrick Sullivan https://data.eol.ucar.edu/contact/show/602 Additional contact information * author: Patrick Sullivan https://data.eol.ucar.edu/contact/show/602 * originator: Patrick Sullivan https://data.eol.ucar.edu/contact/show/602 * principalInvestigator: Patrick Sullivan https://data.eol.ucar.edu/contact/show/602 Alternate metadata formats * DataCite: https://data.eol.ucar.edu/dataset/106.225?format=datacite * ISO/TC 211: https://data.eol.ucar.edu/dataset/106.225?format=isotc211