CRUI Land Use Project - Tree Seedlings

Data

• hf141-01: tree seedlings

Overview

• Lead: Timothy Sipe, Richard Bowden, Charles McClaugherty
• Investigators: Rachel Clark, Jessica Rigelman
• Contact: Timothy Sipe
• Start date: 1996-06-01
• End date: 1996-08-31
• Location: Prospect Hill Tract (Harvard Forest)
• Latitude: +42.53 to +42.55
• Longitude: -72.20 to -72.17
• Elevation: 335 to 357 meters
• Taxa: Acer rubrum (red maple), Acer saccharum (sugar maple), Acer pennsylvanicum (striped maple), Betula alleghaniensis (yellow birch), Betula lenta (black birch), Betula papyrifera (paper birch), Castanea dentate (American chestnut), Fagus grandifolia (American beech), Fraxinus americana (white ash), Hamamelis virginiana (witch hazel), Nyssa sylvatica (black gum), Picea spp. (spruce), Pinus strobus (white pine), Populus grandidentata (bigtooth aspen), Prunus serotina (black cherry), Quercus alba (white oak), Quercus rubra (red oak), Quercus velutina (black oak), Tsuga canadensis (hemlock), Ulmus rubra (slippery elm)
• Research topic: historical, plot, community
• Study type: short-term measurement
• LTER core area: populations, disturbance
• Keywords: permanent plot, tree seedling
• Release date: 2009
• EML version: knb-lter-hfr.141.3
• Revisions:
• Related links:
• CRUI Land Use Project - Litterfall, Biomass and Productivity
• CRUI Land Use Project - Tree Canopy Leaf Area Index
• CRUI Land Use Project - Canopy Sky Factors
• CRUI Land Use Project - Herbaceous Species
• CRUI Land Use Project - Mapped Trees
• CRUI Land Use Project - Microclimate
• CRUI Land Use Project - Photosynthetic Light Response Curves
• CRUI Land Use Project - Herbaceous Stratum Sunfleck Regimes
• CRUI Land Use Project - Herbaceous Community Composition
• CRUI Land Use Project - Soil Properties
• CRUI Land Use Project - Soil Respiration
• Abstract:

  Forests recovering from agricultural legacies differ in many ways that influence tree seed dispersal and seedling establishment patterns. We recorded the number of seedlings (less than 0.5 m tall) of all tree species on a 1 x 1 m resolution across six land use legacy sites (2 plowed, 2 pastured, 2 permanent woodlot) in summer 1996 to test several predictions about seedling abundance, diversity, and dispersion patterns, and their relationships to forest structure, microclimates, and soil resources.

• Methods:

  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.

• Use:

  This dataset is released to the public and may be freely downloaded. Please keep the designated Contact person informed of any plans to use the dataset. Consultation or collaboration with the original investigators is strongly encouraged. Publications and data products that make use of the dataset must include proper acknowledgement. For more information on LTER Network data access and use policies, please see: http://www.lternet.edu/data/netpolicy.html.

• Citation:

  Sipe T, Bowden R, McClaugherty C. 2009. CRUI Land Use Project - Tree Seedlings. Harvard Forest Data Archive: HF141.

Detailed Metadata

hf141-01: tree seedlings

1. Site: site
   • P1: Plow 1
   • P2: Plow 2
   • S1: Pasture 1
   • S2: Pasture 2
   • W1: Woodlot 1
   • W2: Woodlot 2
2. Plot: plot number. Each permanent 30 x 50 m grid has 60 5 x 5 m plots. They are numbered from left to right and top to bottom across the grid. The upper left corner plot is 1 and the lower right corner plots is 60.
3. Cell: cell number. There are 25 1 x 1 m cells within each plot, also numbered left to right and top to bottom. The entire grid has 1500 1 x 1 m cells.
4. Number: number. Each cell has a unique number (1 through 1500) for use in digitized mapping of tree counts. The cell numbers are assigned by grid row, with numbers 1-30 across the top row of the entire grid, cells 31-60 across the second row, etc.
5. X: X-coordinate of cell center for digital mapping of seedling counts across the grid (meter )
6. Y: Y-coordinate of cell center for digital mapping of seedling counts across the grid (meter )
7. Species: species
8. Count: counts of seedlings in each 1 x 1 m cell by species (number )