uid=HFR,o=lter,dc=ecoinformatics,dc=org all public read doi:10.6073/pasta/b83b42b3fa6682cb0de3918a984284bd Alison Magill Audrey Barker Plotkin https://orcid.org/0000-0002-4473-9785 2026 English

The hurricane site contains two plots - the blowdown (treatment) and the control - TSB and TSC respectively. The control plot contains 12 baskets and the blowdown 13. Litter baskets were placed in both the blowdown and control plots in Sept 1989. TSB-13 was originally part of an AVIRIS overflight study and was not included in the data collections until 1990. The litterfall year begins approximately September 20 each year. Years are designated with the fall date, e.g., Sept 1989-Sept 1990 is the 1989 litter year. Litter was collected 2x/year (Nov and the following Sep) in 1989 and 1990 and 3x/year in all subsequent years (Nov, June and Sep). Baskets were removed from the blowdown plot in fall 1990 while the experimental manipulation was underway. Only control plot baskets were collected for the 1990-1991 litterfall year. Nov. 2005 and June 2006 are combined as early snow in Nov. 2005 precluded collection. Litter was not sorted by species in all years and in most cases only the Nov collections were sorted from 1989 through 1993, 2000 and 2006. In other years, a total unsorted litter weight for each basket was recorded. Unsorted litter is indicated as unsorted species type.

biomass hurricane damage litterfall LTER controlled vocabulary organic matter 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=hf101 Tom Swamp Tract (Harvard Forest). Coordinates based on WGS84 datum. -72.20 -72.20 +42.49 +42.49 310 310 meter 1989 2024 genus Acer species rubrum red maple species saccharum sugar maple genus Betula species alleghaniensis yellow birch species lenta black birch species papyrifera white birch genus Carpinus species caroliniana american hornbeam genus Carya species ovata shagbark hickory genus Fagus species grandifolia american beech genus Fraxinus species americana white ash species pennsylvanica green ash genus Pinus species strobus white pine genus Populus species grandidentata bigtooth aspen genus Prunus species serotina black cherry genus Quercus species alba white oak species rubra red oak species velutina black oak genus Tilia species americana american basswood genus Ulmus species americana american elm 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

Note: in 1991 only, litter from individual baskets were mistakenly combined before weighing (comb.ba = combined basket) as follows: Control plot: (1,2)=101; (3,4)=102; (5,6)=103; (8,9)=104; (10,11,12)=105. Blowdown plot: (1,2,3)=101; (4,5,6,7)=102; (8,9,10)=103; (11,12,13)=104.

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. hf101-01-litterfall.csv litterfall data hf101-01-litterfall.csv 128444 6fa7f836ea5a9ba31117f9d3ee2842dd 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p10/hf101/hf101-01-litterfall.csv year year YYYY treat treatment C control B blowdown bask basket number basket number spp tree species AB American Beech BA Black Ash BB Sweet Birch/Black Birch BC Black Cherry BG Black Tupelo/Blackgum BL Black Locust BT BigTooth Aspen BW American Basswood CC Am hornbeam/ironwood/ musclewood CN American Chestnut EL American Elm FF Fruit and Flowers FR Fragments GA Green Ash HE Eastern Hemlock HH Eastern Hophornbeam (smooth bark) HI Shagbark Hickory NS Norway Spruce OL Other Litter OM Other Material QA Quaking Aspen RB River Birch RM Red Maple RO Northern Red Oak RP Red Pine RS Red Spruce SE Slippery Elm SM Sugar Maple ST Striped Maple TG Twigs WA White Ash WB White Birch / Paper Birch WH Witch-hazel WO White Oak WP White Pine YB Yellow Birch category tree species. Revised codes. ACRU Acer rubrum ACSA Acer saccharum BELE Betula lenta BELE/BEAL Betula lenta or Betula allegheniensis BEPA Betula papyrifera CADE Castanea dentate CASP Carya glabra or Carya ovate Fragments fragments FRAM Fraxinus americana HAVI Hammamelis virginiana Nonsort not sorted Other other PIST Pinus strobus POGR Populus grandifolia PRPE Prunus pensylvanica PRSE Prunus serotina QUAL Quercus alba QURU Quercus rubra Reproductive fruits and flowers TIAM Tilia Americana TSCA Tsuga canadensis Twigs twigs nov litterfall in November (g/basket) gram 0.01 real NA missing value jun litterfall in June (g/basket) gram 0.01 real NA missing value aug litterfall in August (g/basket). Note: collected in 2015 after a localized downburst gram 0.01 real NA missing value sep litterfall in September (g/basket) gram 0.01 real NA missing value total total litterfall (g) gram 0.01 real NA missing value litterfall.ha litterfall per hectare (kg ha-1) kilogramsPerHectare 0.01 real NA missing value 2688 hf101-02-annual-mean.csv annual means hf101-02-annual-mean.csv 2262 330786d157a54dcd70b5c2092855715e 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p10/hf101/hf101-02-annual-mean.csv year year YYYY plot plot B experimental blowdown C control nbasket number of baskets number 1 whole NA missing value mean mean annual litterfall including fruits, flowers & twigs (kg ha-1) kilogramsPerHectare 1 whole NA missing value notes mentions baskets not included in a particular plot/year mentions baskets not included in a particular plot/year 72 hf101-03-notes.csv notes hf101-03-notes.csv 6493 43c2bc04a64fce57e6abdb3dca50e322 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p10/hf101/hf101-03-notes.csv year year YYYY plot plot Blowdown experimental blowdown Control control nov collection date collection date NA missing value jun collection date collection date NA missing value sep collection date collection date NA missing value sorted which collections in that year were sorted to species which collections in that year were sorted to species notes weather, basket and other notes weather, basket and other notes 72 plot long-term measurement https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf002