uid=HFR,o=lter,dc=ecoinformatics,dc=org all public read doi:10.6073/pasta/fcf3c33a6bb53d79f84f2b24006c58f3 Timothy Sipe Richard Bowden Charles McClaugherty https://orcid.org/0000-0001-5884-0756 Dax Bennett Researcher Heather Frankland Researcher Melissa Kibler Researcher Amanda Lodge Researcher 2023 English

Numerous variables related to land use disturbance and recovery processes can influence forest composition and structure. We’ve measured differences in forest communities in six sites that were formerly plowed, pastured, or continuously forested woodlots in Prospect Hill. None of the sites had noticeable canopy gap disturbance at the time of the measurements. Leaf area index (LAI) was measured with an LAI-2000 plant canopy analyzer (Li-Cor, Inc., Lincoln, NE) at all 77 edge and interior intersection points in the 30 m x 50 m permanent plot (7 columns x 11 rows) in 5 of our 6 land use sites. Under-canopy measurements were made in each site over 25-30 minutes during midday hours (11:00-2:30 EST) on overcast days near solstice (June 13, 18). The under-canopy readings were contrasted with an open-sky measurement taken in an open field near the Harvard Forest headquarters just before beginning data collection in each site. LAI averaged 3.98 and ranged from 2.28 to 5.93 across all sites. W1 had the highest site-level mean (4.62) and maximum (5.93) LAI while S2 had the lowest values (mean = 3.41, max = 4.55). The woodlot also showed the greatest spatial variation as measured by C.V., while plow #1 showed the least variation.

canopy cover land use leaf area index LTER controlled vocabulary primary production disturbance land use human-environment 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=hf134 Prospect Hill Tract (Harvard Forest). Coordinates based on WGS84 datum. -72.20 -72.17 +42.55 +42.53 335 357 meter 1997 1997 complete 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

Plot locations: Plow #1 Site: Prospect Hill Tract, Compartment # III, southern end. Plow #2 Site: Prospect Hill Tract, Compartment # III, southern end. Pasture #1 Site: Prospect Hill Tract, Compartment # I, southeastern edge. Pasture #2 Site: Prospect Hill Tract, Compartment # VIII, central edge. Woodlot #1 Site: Prospect Hill Tract, Compartment # VIII, northeastern edge. Woodlot #2 Site: Prospect Hill Tract, Compartment # VII, central.

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. hf134-01-lai.csv leaf area index hf134-01-lai.csv 2233 3195d7593365b9b1ae15982598d4ad43 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p13/hf134/hf134-01-lai.csv location individual grid stakes where LAI measurements were made (1-77) individual grid stakes where LAI measurements were made (1-77) plow.1 LAI for Plow 1 dimensionless 0.01 real NA missing value plow.2 LAI for Plow 2 dimensionless 0.01 real NA missing value past.1 LAI for Pasture 1 dimensionless 0.01 real NA missing value past.2 LAI for Pasture 2 dimensionless 0.01 real NA missing value wood.1 LAI for Woodlot 1 dimensionless 0.01 real NA missing value 77 historical plot community short-term measurement https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf133 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf135 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf136 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf137 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf138 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf139 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf140 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf141 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf142 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf143 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf144