uid=HFR,o=lter,dc=ecoinformatics,dc=org all public read doi:10.6073/pasta/7d83413d35ef033d154d93589308d864 Age of Nonstructural Carbohydrates in Four Tree Species at Harvard Forest 2015 Morgan Furze https://orcid.org/0000-0001-9690-6218 Andrew Richardson https://orcid.org/0000-0002-0148-6714 Researcher Brett Huggett https://orcid.org/0000-0003-3237-2741 Researcher Donald Aubrecht Researcher Mariah Carbone https://orcid.org/0000-0002-7832-7009 Researcher Molly Wieringa Researcher 2023 English
<para>We estimated the mean age of sugars within and between different organs of four temperate tree species using the radiocarbon (carbon-14) bomb spike approach. Radial patterns of carbon-14 in the stemwood and coarse roots showed that sugars tended to became older when moving towards the pith.</para> </section> </abstract> <keywordSet> <keyword>carbohydrates</keyword> <keyword>carbon</keyword> <keyword>roots</keyword> <keyword>stems</keyword> <keyword>tree physiology</keyword> <keywordThesaurus>LTER controlled vocabulary</keywordThesaurus> </keywordSet> <keywordSet> <keyword>primary production</keyword> <keywordThesaurus>LTER core area</keywordThesaurus> </keywordSet> <keywordSet> <keyword>Harvard Forest</keyword> <keyword>HFR</keyword> <keyword>LTER</keyword> <keyword>USA</keyword> <keywordThesaurus>HFR default</keywordThesaurus> </keywordSet> <intellectualRights> <section> <para>This dataset is released to the public under Creative Commons CC0 1.0 (No Rights Reserved). Please keep the dataset creators informed of any plans to use the dataset. Consultation with the original investigators is strongly encouraged. Publications and data products that make use of the dataset should include proper acknowledgement.</para> </section> </intellectualRights> <licensed> <licenseName>Creative Commons Zero v1.0 Universal</licenseName> <url>https://spdx.org/licenses/CC0-1.0.html</url> <identifier>CC0-1.0</identifier> </licensed> <distribution> <online> <url function="information">https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf341</url> </online> </distribution> <coverage> <geographicCoverage> <geographicDescription>Prospect Hill Tract (Harvard Forest). Coordinates based on WGS84 datum.</geographicDescription> <boundingCoordinates> <westBoundingCoordinate>-72.188</westBoundingCoordinate> <eastBoundingCoordinate>-72.188</eastBoundingCoordinate> <northBoundingCoordinate>+42.535</northBoundingCoordinate> <southBoundingCoordinate>+42.535</southBoundingCoordinate> <boundingAltitudes> <altitudeMinimum>350</altitudeMinimum> <altitudeMaximum>350</altitudeMaximum> <altitudeUnits>meter</altitudeUnits> </boundingAltitudes> </boundingCoordinates> </geographicCoverage> <temporalCoverage> <rangeOfDates> <beginDate> <calendarDate>2015</calendarDate> </beginDate> <endDate> <calendarDate>2015</calendarDate> </endDate> </rangeOfDates> </temporalCoverage> <taxonomicCoverage> <taxonomicClassification> <taxonRankName>genus</taxonRankName> <taxonRankValue>Acer</taxonRankValue> <taxonomicClassification> <taxonRankName>species</taxonRankName> <taxonRankValue>rubrum</taxonRankValue> <commonName>red maple</commonName> </taxonomicClassification> </taxonomicClassification> <taxonomicClassification> <taxonRankName>genus</taxonRankName> <taxonRankValue>Fagus</taxonRankValue> <taxonomicClassification> <taxonRankName>species</taxonRankName> <taxonRankValue>grandifolia</taxonRankValue> <commonName>American beech</commonName> </taxonomicClassification> </taxonomicClassification> <taxonomicClassification> <taxonRankName>genus</taxonRankName> <taxonRankValue>Fraxinus</taxonRankValue> <taxonomicClassification> <taxonRankName>species</taxonRankName> <taxonRankValue>americana</taxonRankValue> <commonName>white ash</commonName> </taxonomicClassification> </taxonomicClassification> <taxonomicClassification> <taxonRankName>genus</taxonRankName> <taxonRankValue>Quercus</taxonRankValue> <taxonomicClassification> <taxonRankName>species</taxonRankName> <taxonRankValue>rubra</taxonRankValue> <commonName>red oak</commonName> </taxonomicClassification> </taxonomicClassification> </taxonomicCoverage> </coverage> <maintenance> <description> <para>complete</para> </description> </maintenance> <contact scope="document"> <positionName>Information Manager</positionName> <organizationName>Harvard Forest</organizationName> <address scope="document"> <deliveryPoint>324 North Main Street</deliveryPoint> <city>Petersham</city> <administrativeArea>MA</administrativeArea> <postalCode>01366</postalCode> <country>USA</country> </address> <phone phonetype="voice">(978) 724-3302</phone> <electronicMailAddress>hf-im@lists.fas.harvard.edu</electronicMailAddress> </contact> <publisher scope="document"> <organizationName>Harvard Forest</organizationName> <address scope="document"> <deliveryPoint>324 North Main Street</deliveryPoint> <city>Petersham</city> <administrativeArea>MA</administrativeArea> <postalCode>01366</postalCode> <country>USA</country> </address> <phone phonetype="voice">(978) 724-3302</phone> <phone phonetype="fax">(978) 724-3595</phone> <onlineUrl>https://harvardforest.fas.harvard.edu</onlineUrl> </publisher> <methods> <methodStep> <description> <section> <title/> <para>Please see Related Publications for specific details. </para> </section> <section> <title>Study species We selected mature trees from the following four species for radiocarbon analysis: red oak (Quercus rubra L., n=3), white ash (Fraxinus americana L., n=3), red maple (Acer rubrum L., n=3), and American beech (Fagus grandifolia, Ehrh, n=3). Red oak and white ash are ring-porous species, while red maple and American beech are diffuse-porous species.
Field collection In November 2015, a sunlit branch, stemwood core, coarse root core, and fine roots were collected from each tree.
Radiocarbon (carbon-14) analysis We used the carbon-14 ‘bomb spike’ to estimate the mean age of sugars within and between different organs sampled in November 2015. Branches and fine roots were ground in their entirety. Stem and root cores were subdivided into segments starting from the cambium (designed as 0): 0-0.5 cm, 0.5-1 cm, 1-1.5 cm, and 1.5-2 cm. Dried and ground tissues were extracted and analyzed for carbon-14 content at the W.M. Keck Carbon Cycle Accelerator Mass Spectrometry facility at the University of California, Irvine. Carbon-14 content was then directly compared to the northern hemisphere atmospheric 14CO2 record to estimate the mean age of C in the sugars in the sample (or sugar mean age).
Harvard Forest Long-Term Ecological Research Harvard Forest
324 North Main Street Petersham MA 01366 USA
(978) 724-3302 (978) 724-3595 https://harvardforest.fas.harvard.edu https://ror.org/059cpzx98 pointOfContact The Harvard Forest Long-Term Ecological Research (LTER) program examines ecological dynamics in the New England region resulting from natural disturbances, environmental change, and human impacts. National Science Foundation LTER grants: DEB-8811764, DEB-9411975, DEB-0080592, DEB-0620443, DEB-1237491, DEB-1832210. hf341-01-radiocarbon.csv radiocarbon age data hf341-01-radiocarbon.csv 6276 8e99652228775a4a00830bb779223738 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p34/hf341/hf341-01-radiocarbon.csv year year YYYY 1 year NA missing value month month month NA missing value species species name species name NA missing value tag tree tag tree tag NA missing value extract extract extract NA missing value organ woody organ woody organ NA missing value increment woody organ segment starting from inside the bark and moving to the pith for stem cores and root cores, in centimeters woody organ segment starting from inside the bark and moving to the pith for stem cores and root cores, in centimeters NA missing value age mean age estimate from the radiocarbon ‘bomb spike’ method nominalYear 0.1 real NA missing value 120 community short-term measurement https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf308