uid=HFR,o=lter,dc=ecoinformatics,dc=org all public read doi:10.6073/pasta/376b0907616b34707edf7b9a1ac369d0 Jacqueline Mohan https://orcid.org/0000-0002-6697-6204 Serita Frey https://orcid.org/0000-0002-9221-5919 Researcher Jerry Melillo Researcher 2023 English

The main goal of this study is to assess eastern tree species’ growth, survivorship, and phenological responses to soil warming in order to forecast future changes in forest succession and carbon dynamics. From 2003 through 2010, we determined that shade-tolerant, normally slower-growing species benefitted most from warming. We are continuing to study species-species responses to investigate the duration of and mechanisms behind species- and functional group responses to climate warming. Monitoring long-term demographic and physiological responses of juvenile trees with and without soil warming will allow us to model future eastern tree species successional shifts under warmer climate conditions.

aboveground biomass aboveground production biodiversity climate change demography plant growth soil temperature succession trees LTER controlled vocabulary populations disturbance LTER core area Harvard Forest HFR LTER USA HFR default

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.

Creative Commons Zero v1.0 Universal https://spdx.org/licenses/CC0-1.0.html CC0-1.0 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf436 Slab City Tract (Harvard Forest). Coordinates based on WGS84 datum. -72.18 -72.18 +42.48 +42.48 297 297 meter 1995 2019 genus Acer species pensylvanicum striped maple species rubrum red maple species saccharum sugar maple genus Betula species alleghaniensis yellow birch species lenta black birch genus Castanea species dentata american chestnut genus Fagus species grandifolia american beech genus Fraxinus species americana white ash genus Pinus species strobus white pine genus Prunus species serotina black cherry genus Quercus species alba white oak species rubra red oak species velutina black oak genus Tsuga species canadensis hemlock genus Toxicodendron species radicans poison ivy genus Viburnum species acerifolium maple-leaf viburnum ongoing Information Manager Harvard Forest

324 North Main Street Petersham MA 01366 USA

(978) 724-3302 hf-im@lists.fas.harvard.edu Harvard Forest

324 North Main Street Petersham MA 01366 USA

(978) 724-3302 (978) 724-3595 https://harvardforest.fas.harvard.edu

Tree seedlings, saplings and targeted non-tree woody species, namely poison ivy (Toxicodendron radicans), at the Barre Woods soil warming experiment site are measured using non-destructive means. Toward the end of the annual growing season (September, October) plant heights are measured with meter sticks and the diameter at 5-cm height using digital calipers. Diameters of taller trees are measured at 50-, 100- and 150-cm heights to help generate allometric equations estimating plant biomass. Individuals in the original 3.14 m2 round subplots (established in 2003) as well as plots outside these plots but within the 900-m2 area of each treatment site (Control and Heated) are measured. Each individual is tagged with an aluminum tag and its treatment site, plot and subplot location is recorded. Formerly these measurements were done annually. They are now done every other year or so. Terminal bud scars are used to determine the terminal heights for years prior to 2003.

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. Other funding: National Geographic Society grant NGS-58955R-19. hf436-01-trees.csv tree measurement data hf436-01-trees.csv 223198 f68aa5a4f3ae3a0ee844c40324876aec 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p43/hf436/hf436-01-trees.csv Treat_HC warming treatment C control H heated U unknown PrePrint_tag tag with pre-printed number used when tagging new recruitments tree identifier Original_ID tag number assigned to the individual when first measured. During the course of time some of these tags fall off or become unreadable and are replaced with another tag. tree identifier SPECIES species of tagged individual ACPE Acer pensylvanicum ACRU Acer rubrum ACSA Acer saccharum BEAL Betula alleghaniensis BELE Betula lenta CADE Castanea dentata FAGR Fagus grandifolia FRAM Fraxinus americana PIST Pinus strobus PRSE Prunus serotina QUAL Quercus alba QURU Quercus rubra QUVE Quercus velutina SHRUB shrub Shrub (Not BELE) shrub (not Betula lenta) TSCA Tsuga canadensis UNKN unknown VIAC Viburnum acerifolium Subplot plot ID assigned for the BW experiment. Control and Heated plots both have 36 subplots labeled 1-36. plot identifier Round_Plot 2m diameter round plots. There is no more than one round plot per subplot plot identifier DBH19_mm diameter at breast height (470cm) of individuals greater then 2m in height, 2019 millimeter 0.01 real NA missing value D5_2019_mm diameter at 5cm height, 2019 millimeter 0.01 real NA missing value D5_2016_mm diameter at 5cm height, 2016 millimeter 0.01 real NA missing value D5_2014_mm diameter at 5cm height, 2014 millimeter 0.01 real NA missing value HT19 _cm height at end of growing season, 2019 centimeter 0.1 real NA missing value HT18 _cm height at end of growing season, 2018 centimeter 0.1 real NA missing value HT17_cm height at end of growing season, 2017 centimeter 0.1 real NA missing value HT16_cm height at end of growing season, 2016 centimeter 0.1 real NA missing value HT15_cm height at end of growing season, 2015 centimeter 0.1 real NA missing value HT14_Fall_cm height at end of growing season, 2014 centimeter 0.1 real NA missing value HT14_June _cm height in June, 2014 centimeter 0.1 real NA missing value HT13_cm height at end of growing season, 2013 centimeter 0.1 real NA missing value HT12_cm height at end of growing season cm, 2012 centimeter 0.1 real NA missing value HT11_cm height at end of growing season, 2011 centimeter 0.1 real NA missing value HT10_cm height at end of growing season, 2010 centimeter 0.1 real NA missing value HT09_cm height at end of growing season, 2009 centimeter 0.1 real NA missing value HT08_cm height at end of growing season, 2008 centimeter 0.1 real NA missing value HT08_July_cm height in July 2008 centimeter 0.1 real NA missing value HT07_cm height at end of growing season, 2007 centimeter 0.1 real NA missing value HT06_cm height at end of growing season, 2006 centimeter 0.1 real NA missing value HT05_cm height at end of growing season, 2005 centimeter 0.1 real NA missing value HT04_cm height at end of growing season, 2004 centimeter 0.1 real NA missing value HT03_cm height at end of growing season, 2003 centimeter 0.1 real NA missing value HT02_cm height at end of growing season, 2002 centimeter 0.1 real NA missing value HT01 _cm height at end of growing season, 2001 centimeter 0.1 real NA missing value HT00_cm height at end of growing season, 2000 centimeter 0.1 real NA missing value HT99_cm height at end of growing season, 1999 centimeter 0.1 real NA missing value HT98_cm height at end of growing season, 1998 centimeter 0.1 real NA missing value HT97_cm height at end of growing season, 1997 centimeter 0.1 real NA missing value HT96_cm height at end of growing season, 1996 centimeter 0.1 real NA missing value HT95_cm height at end of growing season, 1995 centimeter 0.1 real NA missing value 2019Visual_Light_Estimate_percent visual estimate of percent of light that makes it to the ground through the canopy, 2019 visual estimate 2016Visual_Light_Estimate_percent visual estimate of percent of light that makes it to the ground through the canopy, 2016 visual estimate 2014Visual_Light_Estimate_percent visual estimate of percent of light that makes it to the ground through the canopy, 2014 visual estimate Comments2019 comments, 2019 comments Comments2016 comments, 2016 comments Comments2014 comments, 2014 comments Comments2010 comments, 2010 comments Outlier indicator of an outlier in the data analysis X outlier DEAD10 status of the individual, 2010 0 alive 1 dead DEAD09 status of the individual, 2009 0 alive 1 dead DEAD08 status of the individual, 2008 0 alive 1 dead DEAD07 status of the individual, 2007 0 alive 1 dead DEAD06 status of the individual, 2006 0 alive 1 dead DEAD05 status of the individual, 2005 0 alive 1 dead DEAD04 status of the individual, 2004 0 alive 1 dead 1266 biodiversity plot community soil long-term measurement