uid=HFR,o=lter,dc=ecoinformatics,dc=org all public read doi:10.6073/pasta/2fdda5359882b28932b37fa226251b03 David Kittredge https://orcid.org/0000-0002-8527-0370 David Foster https://orcid.org/0000-0003-1171-3762 Robert McDonald https://orcid.org/0000-0002-7273-6549 John Burk Researcher Glenn Motzkin Researcher 2023 English

Forest harvesting is one of the most significant disturbances affecting forest plant composition and structure in Western Massachusetts, yet few studies have quantified the effects of harvesting in this region. Massachusetts requires all commercial harvest operations above 87 m3 to file a Forest Cutting Plan (FCP) with the state. We have digitized these FCPs (see McDonald et al. 2006), covering all harvests from 1984 to 2003. Our study area is Massachusetts west of the coastal basin, as defined by Motts and O’Brian (1981). We selected 126 sites for sampling. Two-thirds of the sites (89) were harvested once between 1984 and 2003, and these were selected randomly from the larger FCP database. The remaining one-third of the sites (37) were control sites selected randomly from all unharvested forest in the study area. The boundaries for our field surveys were those filed with the FCP for harvested sites, and were circular for control sites, proportional in size to the mean FCP in the physiographic region (Motts and O'Brien 1981): Connecticut River Valley (10.7 ha), Central Upland (11.3 ha), Berkshire Valley and Taconic Mountains (12.6 ha), and the Western Upland (15.9 ha). Note that our sampled sites were well-dispersed over the study area, and encompassed the variety of past agricultural land-use.

geographic information systems management region timber harvest vegetation dynamics LTER controlled vocabulary disturbance 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=hf127 Western Massachusetts. Coordinates based on WGS84 datum. -73.5 -71.1 +42.8 +41.7 62 1063 meter 2004 2005 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

During the summer of 2004 and 2005, sampling proceeded at each site at three spatial scales. First, we surveyed the entire polygon to understand the distribution of harvesting within the polygon and determine the major stand type (i.e., hardwood, evergreen, or mixed). We also took notes on the non-native invasive species encountered. Second, within the major stand type (i.e., excluding small areas of the polygon of different type) we randomly placed 10 plots, with the constraint that they be at least 50m from one another. Tree basal area (m2/ha) and density (#/ha) were measured for overstory (greater than 20 cm DBH) and understory (5-20 cm DBH) trees using the point-quarter method (Cottan and Curtis 1956). Fixed area circular plots were used to count seedlings (stems less than 1.37m) and saplings (stems greater than 1.37m and less than 5cm DBH) within 2m and 5m radius plots, respectively. We also tallied and measured the diameter of all stumps within an 11.3 radius plot. Third, within the major stand type we chose an area representative of the typical flora of the stand. Within this general region, a random direction was chosen, and 30m were paced in that direction. Wherever we stopped formed the southwest corner of a 20m x 20m intensive plot. The DBH of all trees was measured, and seedlings and saplings were measured in 5m x 5m and 5m x 20m nested subplots, respectively. We recorded all vascular plant species in the 20m x 20m plot, and estimated their cover using an 8 class scale: (1 = less than 1%, 2 = 1-3%, 3 = 3-5%, 4 = 5-15%, 5 = 15-25%, 6 = 25-50%, 7 = 50-75%, 8 = greater than 75%). We also measured the basal diameter of all stumps within the plot or in a 5m buffer around it. A soil pit was dug to 50cm depth, and we examined the soil probe for evidence of a plow layer. Using this information, as well as other evidence of land-use such as the presence of stone walls, barbed wire, old field white pines, and chestnut sprouts (present only in sites that were forested before the 1910s chestnut blight), we classified the site into one of three categories of local land-use: woodlot, if the site has remained forested; pasture, if the site was used as rough, unimproved pasture, and plowed, if there was clear evidence the soil had been disturbed. We checked this classification with land-use data from the 1830s (Hall et al. 2002) and from the 1930s maps of the Works Progress Administration, where available. We believe, based on a review of the polygons and the historical data sources, that the land-use history inferred for the 20m x 20m plot will be accurate for the majority of the area of the polygon. Two soil samples were taken of the organic soil and the top 15 cm of mineral soil to characterize soil texture and nutrients (Brookside Laboratories). Slope, aspect, canopy closure, and percent surface rock were estimated in the center of the 20m x 20m plot.

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. hf127-01-poly-info.csv polygon information hf127-01-poly-info.csv 33389 77594b9250554dc067471440f1c1fccf 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-01-poly-info.csv file.id a unique identifier of the polygon in which the plot occurred a unique identifier of the polygon in which the plot occurred observers the crew that worked on the polygon the crew that worked on the polygon date the date at which the polygon was sampled YYYY-MM-DD 1 day NA missing value stand.type the dominant stand-type, as determined from field recon. (Deciduous, Mixed, or Evergreen) the dominant stand-type search.time the amount of time spent searching the polygon for exotics second 1 whole NA missing value num.observers the number of people searching the polygon for invasives number 0.1 real NA missing value moose notes on whether there is evidence of moose from the polygon, like scat and bent saplings absent no evidence of moose present evidence of moose poly.harvest.per percent of the polygon that has stumps in it. Often much less than a 100%. dimensionless 0.1 real NA missing value comments any comments the observers made about the polygon any comments the observers made about the polygon 148 hf127-02-poly-other.csv polygon other information hf127-02-poly-other.csv 13508 74e21c764109bfe7078f51c0b5d19581 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-02-poly-other.csv rec unique identifier of the record unique identifier of the record file.id unique identifier of the polygon in which the plot occurred unique identifier of the polygon in which the plot occurred landuse landuse. A soil pit was dug to 50cm depth, and we examined the soil probe for evidence of a plow layer. Using this information, as well as other evidence of land-use such as the presence of stone walls, barbed wire, old field white pines, and chestnut sprouts (present only in sites that were forested before the 1910s chestnut blight), we classified the site into one of three categories of local land-use: woodlot, if the site has remained forested; pasture, if the site was used as rough, unimproved pasture, and plowed, if there was clear evidence the soil had been disturbed. We checked this classification with land-use data from the 1830s (Hall et al. 2002) and from the 1930s maps of the Works Progress Administration, where available. (Woodlot, Pasture, Plowed) landuse x.utm the easting of the UTM coordinates number 1 natural NA missing value y.utm the Northing of the UTM coordinates number 1 whole NA missing value elevation elevation meter 1 whole NA missing value region the physiographic region in which the polygon was located, based on Motts' physiographic regions (degree). Central Upland, CRV, Western Upland, Berkshire Valley/Taconic Mountains. the physiographic region in which the polygon was located surficial the surficial geology type (till, sand, or alluvial) the surficial geology type (till, sand, or alluvial) tci the calculated topographic convergence index, derived from a DEM the calculated topographic convergence index, derived from a DEM precip estimated annual precipitation. Contact Brian Hall for info. centimeter 0.01 real NA missing value gdd estimated growing degree days. Contact Brian Hall for info. (degree-days) number 0.01 real NA missing value forest1830 whether the site was forested or not in 1830. Some sites have no data. Derived from 1830 land-use maps. open1830 not forested in 1830 forest1830 forested in 1830 NA no data bedrock the bedrock-type of the polygon, as derived from MassGIS data layers. (Either Granitic, Mafic, Calcareous) the bedrock-type of the polygon 148 hf127-03-poly-plan.csv polygon plans hf127-03-poly-plan.csv 295039 6ea8d63b2a5199e0ee6a176dc86f7ffa 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-03-poly-plan.csv file.id unique ID code assigned by the state to the cut unique ID code assigned by the state to the cut fis.year year the cut was reported. Note that landowners had two years to cut the site, and need not do so. Estimated ~5% of the time an FCP is not executed. YYYY NA missing value date.rec date a cut was recorded YYYY-MM-DD NA missing value town.1 principal town of the cut principal town of the cut town.2 secondary town of the cut, used when the cut crossed town boundaries secondary town of the cut, used when the cut crossed town boundaries acres.rep reported number of acres of the plan. Inaccurate, use GIS-calculate hectares. acre 0.1 real NA missing value volu.mbf total reported timber removed in thousand board feet thousandBoardFoot 0.1 real NA missing value volu.cds total reported firewood removed in cords cord 1 whole NA missing value vol.oth total reported wood taken for other purposes. Units often unclear. number 0.1 real NA missing value own.type ownership type. The coding here is from the state. 1 DEM (DCR) state lands 2 MDC 3 Local agencies: town DPWs, airports, commissions, etc. 4 Nonprofits: conservation groups, churches 5 Private landowners 6 Sawmills, industrial forestland owned by a processing firm 7 U.S. Army Corps of Engineers 8 MA Fish and Wildlife public whether the land is public y puclic land n not public land wetland.cr wetland presence or absence y wetland contained in the bounds of the FCP n no wetland contained in the bounds of the FCP fortype1 the primary type of forest wp White Pine wk Pine/Hemlock wh Pine/Hardwood wo Pine/Oak rp Red Pine sr Red Spruce sf Spruce pp Pitch Pine po Pitch Pine/Oak hk Hemlock hh Hemlock/Hardwood tk Tamarack cd Cedar oh Oak/Hardwood bw White Birch or Red Oak om Mixed Oak rm Red Maple bc Black Cherry bb Beech/Birch/Maple sm Sugar Maple bm Birch/Red Maple be Beech ot Other primobj1 the goal of the cut in type 1 wp Wood Production wh Wildlife Habitat imp Improvement. Note: the cutting plan form changed after 1996, and the code IMP was discontinued. in Short term income sw Soils and water management ar Aesthetics/Recreation inter Intermediate. Note: the cutting plan form changed after 1996, and the code INTER was discontinued. sa Salvage ot Other typereg1 the type of regeneration that is the goal for type 1. Multiple forest types, objectives, and regenerative cuts were sometimes listed for each stand (i.e. WPINSW). se Selective sh Shelterwood st Seed Tree cc Clear Cut sa Salvage co Coppice cs Coppice with standards ot Other fortype2 the secondary type of forest. See codes above. the secondary type of forest. See codes above. primobj2 the goal of the cut in type 2. See codes above. the goal of the cut in type 2. See codes above. typereg2 the type of regeneration that is the goal for type 2. Multiple forest types, objectives, and regenerative cuts were sometimes listed for each stand (i.e. WPINSW). See codes above. the type of regeneration that is the goal for type 2. Multiple forest types, objectives, and regenerative cuts were sometimes listed for each stand (i.e. WPINSW). See codes above. fortype3 the tertiary type of forest. See codes above. the tertiary type of forest. See codes above. primobj3 the goal of the cut in type 3. See codes above. the goal of the cut in type 3. See codes above. typereg3 the type of regeneration that is the goal for type 3. Multiple forest types, objectives, and regenerative cuts were sometimes listed for each stand (i.e. WPINSW). See codes above. the type of regeneration that is the goal for type 3. Multiple forest types, objectives, and regenerative cuts were sometimes listed for each stand (i.e. WPINSW). See codes above. fortype4 the quartiary type of forest. See codes above. the quartiary type of forest. See codes above. primobj4 the goal of the cut in type 4. See codes above. the goal of the cut in type 4. See codes above. typereg4 the type of regeneration that is the goal for type 4. Multiple forest types, objectives, and regenerative cuts were sometimes listed for each stand (i.e. WPINSW). See codes above. the type of regeneration that is the goal for type 4. Multiple forest types, objectives, and regenerative cuts were sometimes listed for each stand (i.e. WPINSW). See codes above. species species code, each species is abbreviated by 6-8 letters species code unit units the volumn is measured in mbf thousand board feet ton tons c cords ccf cubic cord feet volume species-specific volume (various units) species-specific volume (various units) tot.mbf sum of the MBF measurements. Sometimes, the landowner did the math wrong. thousandBoardFoot 0.1 real NA missing value tot.cds sum of the cords measurements. Sometimes, the landowner did the math wrong. cord 1 whole NA missing value tot.ton sum of the tons measurements. Sometimes, the landowner did the math wrong. ton 1 whole NA missing value tot.ccf sum of the Cubic cord feet measurements. Sometimes, the landowner did the math wrong. footCubed 1 whole NA missing value approved sometimes explictly coded as "y" for yes, but all these plans were approved y explicitly coded as aprroved n not explicitly coded as approved n.polys number of polygons in the FCP number 1 whole NA missing value notes notes notes 2268 hf127-04-poly-cutting.csv polygon cutting hf127-04-poly-cutting.csv 188019 d65cceebb02de2ef582e631338e42843 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-04-poly-cutting.csv file.id unique identifier of the polygon in which the plot occurred unique identifier of the polygon in which the plot occurred area.ha area in hectares as defined by the GIS boundaries hectare 0.01 real NA missing value fis.year year the cut was reported. Note that landowners had two years to cut the site, and need not do so. Estimated ~5% of the time an FCP is not executed. YYYY acres.rep acres the landowner reported. Often wrong. acre 0.1 real NA missing value species.vol species code for species-specific volumes, each species is abbreviated by 6-8 letters and M3 to denote units used species code for species-specific volumes volume species-specific volume cubicMeter 0.01 real NA missing value estimated sum of the landowners itemized removals cubicMeter 0.01 real NA missing value tot.m3 landowners stated total removal cubicMeter 0.01 real NA missing value best.m3 best guess of what was removed based on the above. See HF080 Methods. cubicMeter 0.01 real NA missing value species.int species code for species-specific intensity, each species is abbreviated by 6-8 letters and HA to denote units used species code for species-specific intensity intensity species-specific intensity meterCubedPerHectare 0.01 real NA missing value estimated.1 sum of the landowners itemized removals meterCubedPerHectare 0.01 real NA missing value tot.ha landowners stated total removal meterCubedPerHectare 0.01 real NA missing value best.ha best guess of the intensity of harvesting based on the above. See HF080 Methods. meterCubedPerHectare 0.01 real NA missing value 2268 hf127-05-poly-invasive.csv polygon invasives hf127-05-poly-invasive.csv 62299 1acbea4f5bb5cedb94587b17f073e82a 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-05-poly-invasive.csv file.id unique identifier of the polygon in which the plot occurred unique identifier of the polygon in which the plot occurred species invasive species, abbreviated by the first three letters of the genus and species invasive species, abbreviated by the first three letters of the genus and species presence presence of invasive species 0 absent 1 rare 2 uncommon 3 common 3700 hf127-06-stand-info.csv stand information hf127-06-stand-info.csv 45658 c7eb8bcef78071b0356bff37ed882afa 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-06-stand-info.csv rec unique identifier for the record unique identifier for the record file.id unique identifier for the polygon in which the record occurs unique identifier for the polygon in which the record occurs pq.num the identifying number of the record within the polygon. Most polygons have ten total. the identifying number of the record within the polygon aspect the aspect of the slope on which the record occurs degree 1 whole NA missing value position the landscape position of the record (Upslope, midslope, or downslope) the landscape position of the record rock the percent rock within an 11.3 m radius of the sample point dimensionless 0.1 real NA missing value slope the slope of the record. See next attribute for units used. dimensionless 0.1 real NA missing value slopeunit the units the slope was recorded with (percent or degree) the units the slope was recorded with (percent or degree) 1211 hf127-07-stand-tree.csv stand trees hf127-07-stand-tree.csv 405016 d36f97c80efa2b4f19d578cd0886de6e 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-07-stand-tree.csv rec unique identifier for the record unique identifier for the record poly.id unique identifier for the polygon in which the record occurs unique identifier for the polygon in which the record occurs pt.quart.num identifying number of the record within the polygon. Most polygons have ten total. identifying number of the record within the polygon size.class whether in the understory (5-20cm DBH) and the overstory (20cm DBH +) 5 understory 20 overstory tree.sps species of the record species of the record dbh diameter of the stem centimeter 0.1 real NA missing value dist distance to the stem from the point meter 0.1 real NA missing value 9949 hf127-08-stand-sapling.csv stand saplings hf127-08-stand-sapling.csv 158800 8aa4d710433584915d48abae5999bacd 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-08-stand-sapling.csv rec unique identifier for the record unique identifier for the record poly.id unique identifier for the polygon in which the record occurs unique identifier for the polygon in which the record occurs pt.quart.num identifying number of the record within the polygon. Most polygons have ten total. identifying number of the record within the polygon species species of the record species of the record origin whether the sapling seems to have come from seedling or from sprouting whether the sapling seems to have come from seedling or from sprouting sapl.num number of saplings associated with the record number 1 natural NA missing value 3918 hf127-09-stand-seedling.csv stand seedlings hf127-09-stand-seedling.csv 116225 2bc1ded8bcfe0e332bf890b0e75b9d47 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-09-stand-seedling.csv rec unique identifier for the record unique identifier for the record poly.id unique identifier for the polygon in which the record occurs unique identifier for the polygon in which the record occurs pt.quart.num identifying number of the record within the polygon. Most polygons have ten total. identifying number of the record within the polygon species species of the record species of the record seedl.num number of seedlings associated with the record number 1 natural NA missing value 3671 hf127-10-stand-stump.csv stand stumps hf127-10-stand-stump.csv 101497 dc90bdd75c23284af6e4d4dd57b7e467 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-10-stand-stump.csv rec unique identifier for the record unique identifier for the record poly.id unique identifier for the polygon in which the record occurs unique identifier for the polygon in which the record occurs pt.qt.num number of the record within the polygon number of the record within the polygon stump.sps species of the record species of the record diameter diameter of the stump at ground level centimeter 0.1 real NA missing value 3368 hf127-11-stand-invasive.csv stand invasives hf127-11-stand-invasive.csv 666853 53444eb9865646b3af0f1cf72a65c76f 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-11-stand-invasive.csv rec unique identifier of the record unique identifier of the record file.id unique identifier of the polygon in which the plot occurred unique identifier of the polygon in which the plot occurred pq.num number of the record within the polygon number of the record within the polygon species invasive species code, abbreviated by the first three letters of the genus and species invasive species code, abbreviated by the first three letters of the genus and species presence presence of invasive species 0 absent 1 rare 2 uncommon 3 common 29064 hf127-12-plot-info.csv plot information hf127-12-plot-info.csv 20117 21e816d78d0144f5b0831215333f92ee 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-12-plot-info.csv file.id unique identifier of the polygon in which the plot occurred unique identifier of the polygon in which the plot occurred utm.zone zone in which UTM coordinates were recorded 17 Eastern Massachusetts 18 Western Massachusetts utm.n the Northing of the UTM coordinates meter 1 natural NA missing value utm.e the Easting of the UTM coordinates meter 1 whole NA missing value aspect the aspect of the slope with zero being north degree 1 whole NA missing value elevation elevation meter 0.1 real NA missing value canopy1 percent canopy closure, facing one edge of the plot dimensionless 1 whole NA missing value canopy2 percent canopy closure, facing one edge of the plot dimensionless 1 whole NA missing value canopy3 percent canopy closure, facing one edge of the plot dimensionless 1 whole NA missing value canopy4 percent canopy closure, facing one edge of the plot dimensionless 1 whole NA missing value land.post the landscape position of the plot (upslope, midslope, or downslope) the landscape position of the plot rock.per percent surface rock in the plot dimensionless 0.1 real NA missing value slope slope of the plot, see next attribute for units used dimensionless 1 real NA missing value slopeunit units used to record the slope (either "degree", or "percent".) units used to record the slope comments any comments on the plot any comments on the plot 130 hf127-13-plot-soil.csv plot soil pits hf127-13-plot-soil.csv 33758 cacef9ddcbc409a24b6c27da04e53f77 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-13-plot-soil.csv file.id the polygon in which the record occurs the polygon in which the record occurs tipup notes on whether tip-up mounds are present in the plot (Present/Absent) notes on whether tip-up mounds are present in the plot fire notes on whether there is evidence of fire in a plot (Present/Absent) notes on whether there is evidence of fire in a plot oldfield notes on whether there are white pines that clearly grew up in an old-field, due to their branching canopy (Present/Absent) notes on whether there are white pines that clearly grew up in an old-field, due to their branching canopy walls notes on whether there are stone walls in or near the plot (Present/Absent) notes on whether there are stone walls in or near the plot stones notes on whether there are stones in or near the plot (Present/Absent) notes on whether there are stones in or near the plot ap notes on whether there is a plow layer in the soil (Present/Absent) notes on whether there is a plow layer in the soil new.a notes on whether there is a new A layer forming above the plow layer (Present/Absent) notes on whether there is a new A layer forming above the plow layer ap.depth if there is an AP, its depth centimeter 0.1 real NA missing value a.depth the depth of the A layer (only recorded if there was no Ap layer) centimeter 0.1 real NA missing value ehorizon notes on whether there is an eluviation layer in the soil (Present/Absent) notes on whether there is an eluviation layer in the soil distinct how distinct the boundary is between the A and B layer (See protocol for details.) Abrupt abrupt boundary Gradual gradual boundary Diffuse diffuse boundary NA no data orgdep1 the depth of the organic layer, at one point in the plot centimeter 0.1 real NA missing value orgdep2 the depth of the organic layer, at one point in the plot centimeter 0.1 real NA missing value orgdep3 the depth of the organic layer, at one point in the plot centimeter 0.1 real NA missing value orgdep4 the depth of the organic layer, at one point in the plot angstrom 0.1 real NA missing value orgdep5 the depth of the organic layer, at one point in the plot centimeter 0.1 real NA missing value notes notes on the soil interpretation, and possible land-use notes on the soil interpretation, and possible land-use 128 hf127-14-plot-tree.csv plot trees hf127-14-plot-tree.csv 170851 bccb9bc55f0548631e374c65cc893126 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-14-plot-tree.csv poly.id polygon in which the record occurs polygon in which the record occurs species species of the record species of the record dbh diameter at breast height of the tree centimeter 0.1 real NA missing value dead a dummy variable, recording if the tree is dead 0 alive 1 dead clone records whether the tree is part of a clone or not. The other trees in the clone will always be in the record above or below the current one, and will also have the appropriate code in this field. 0 not part of a clone 1 part of a clone id unique identifier for each record. If sorted in ascending order, this places trees that are in the same clone next to one another. unique identifier for each record 4769 hf127-15-plot-sapling.csv plot saplings hf127-15-plot-sapling.csv 12466 eaf5d9e4369310ba70079838b634af87 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-15-plot-sapling.csv rec unique identifier number for each record unique identifier number for each record poly.id polygon in which the record occurs polygon in which the record occurs species species of the record species of the record sapl.num the number of saplings of that species in a given plot number 1 whole NA missing value 422 hf127-16-plot-seedling.csv plot seedlings hf127-16-plot-seedling.csv 16061 9bceb2683dd4cd3a0c45ec87380e9dda 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-16-plot-seedling.csv rec unique identifier number for each record unique identifier number for each record poly.id polygon in which the record occurs polygon in which the record occurs species species of the record species of the record seed.num number of seedlings of that species in a given plot number 1 whole NA missing value 548 hf127-17-plot-herb-all.csv plot herbs all hf127-17-plot-herb-all.csv 209057 e875bd599d00f3c158e6e354729cf565 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-17-plot-herb-all.csv rec unique identifier number for each record unique identifier number for each record file.id polygon in which the record occurs polygon in which the record occurs genus genus of the record Genus of the record species species of the record. When unknown, just recorded as "sp." species of the record cover cover-class of the record 1 less than 1% 2 1-3% 3 3-5% 4 5-15% 5 15-25% 6 25-50% 7 50-75% 8 greater than 75% sample a dummy variable that records if a sample of the record was taken in the field, to double-check ID. a dummy variable scientific.name genus + species genus + species 3870 hf127-18-plot-herb-lumped.csv plot herbs lumped hf127-18-plot-herb-lumped.csv 208115 fada318996002b625c98df20dc24754b 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-18-plot-herb-lumped.csv rec unique identifier number for each record unique identifier number for each record file.id polygon in which the record occurs polygon in which the record occurs genus Genus of the record. These plants have been lumped, to facilitate analysis: species in the genera Actaea, Arisaema, Aronia, Circaea, Corylus, Galium, Glyceria, Oxalis, Panicum (Dichanthelium), Polypodium, Prenanthes, Rhododendron, Ribes, Sambucus, Spiraea, Tiarella, Ulmus, Veronica, and Viola were lumped to genus. For Aster, we created three groups: Aster divaricatus, Aster acuminatus, and other. Similarly, for Carex we recognized four groups: Carex debilis, Carex laxiflora, Carex pensylvanica, and other; for Solidago, we recognized two groups: Solidago rugosa and other. Genus of the record species species of the record. When unknown, just recorded as "sp." species of the record cover cover-class of the record 1 less than 1% 2 1-3% 3 3-5% 4 5-15% 5 15-25% 6 25-50% 7 50-75% 8 greater than 75% sample a dummy variable that records if a sample of the record was taken in the field, to double-check ID. a dummy variable scientific.name genus + species genus + species 3867 hf127-19-plot-stump.csv plot stumps hf127-19-plot-stump.csv 26597 658b8f9c3ad5e41e2c719c3f5584b916 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-19-plot-stump.csv rec unique identifier number for each record unique identifier number for each record poly.id polygon in which the record occurs polygon in which the record occurs species species of the record species of the record diameter diameter at ground level of the stump centimeter 0.1 real NA missing value 917 hf127-20-gis.zip ArcView shape files of Prospect Hill Tract hf127-20-gis.zip 102381 fff4922a9a9b09dab5047555a6b33b40 zip Esri shapefile https://harvardforest.fas.harvard.edu/data/p12/hf127/hf127-20-gis.zip vector GIS conservation community short-term measurement https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf080 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf046 thousandBoardFoot cord footCubed