Harvard Forest Data Archive

HF213

Forest Inventory for Tree Demography and Carbohydrate Reserves at Harvard Forest 2009-2011

Related Publications

Data

Overview

  • Lead: Michael Dietze, Joshua Mantooth
  • Investigators:
  • Contact: Michael Dietze
  • Start date: 2009-01-01
  • End date: 2014-08-03
  • Status: completed
  • Location: Prospect Hill Tract (Harvard Forest), Simes Tract (Harvard Forest), Tom Swamp Tract (Harvard Forest)
  • Latitude: +42.468102 to +42.550877
  • Longitude: -72.219685 to -72.169543
  • Elevation: 206 to 361 meter
  • Taxa: Acer rubrum (red maple), Acer saccharum (sugar maple), Betula alleghaniensis (yellow birch), Betula lenta (black birch), Betula papyrifera (paper birch), Castanea dentata (american chestnut), Fagus grandifolia (american beech), Fraxinus americana (white ash), Hamamelis virginiana (american witchhazel), Picea rubens (red spruce), Pinus resinosa (red pine), Pinus strobus (white pine), Prunus serotina (black cherry), Quercus alba (white oak), Quercus rubra (red oak), Quercus velutina (black oak), Tilia americana (american basswood), Tsuga canadensis (eastern hemlock)
  • Release date: 2014
  • Revisions:
  • EML file: knb-lter-hfr.213.2
  • DOI: digital object identifier
  • Related links:
  • Study type: modeling
  • Research topic: ecological informatics and modelling
  • LTER core area: primary production
  • Keywords: inventories, tree maps, vegetation dynamics
  • Abstract:

    The objective of this study is to establish a network of forest plots spanning the eastern U.S. focused on understanding how regional scale climate patterns affect patterns of tree demography (e.g. growth, mortality, dieback). Within each research site we also aim to understand the landscape-scale variability in demographic rates and how these rates are affected by edaphic variables by aligning plots along primary environmental gradients (elevation, soils, hydrology, fire return interval). The demographic data obtained will also be compared to regional and landscape-scale patterns in carbon reserves in adults and sapling by sampling root and stem concentrations of nonstructural carbohydrates (TNC) and relate these to demographic patterns, life-history traits, and plant C:N ratios.

    Besides addressing important ecological questions directly, this study is designed to improve the representations of vegetation dynamics and carbohydrate reserves in regional and landscape-scale forest ecosystem models--two of the least data-constrained processes in such models--by parameterizing and validating the modules for these processes in the Ecosystem Demography model (ED v2.1).

    This data set contains two years of census data for eight mapped plots distributed across Harvard Forest along the aforementioned primary environmental gradients.

  • Methods:

    Thirty-two .0225 ha subplots (eight plots--four subplots each) were established in 2009 and 2011 across Harvard Forest. The plot layout is a modification of the forest inventory and analysis plot design. Each square plot contains four subplots; with three equiangular plots 50 m from the center plot. All subplots were geolocated using a Trimble GeoXH field computer. Within each subplot, trees greater than 5cm DBH (1.4 m) were mapped, tagged, identified to species and measured for DBH.

  • 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:

    Dietze M, Mantooth J. 2014. Forest Inventory for Tree Demography and Carbohydrate Reserves at Harvard Forest 2009-2011. Harvard Forest Data Archive: HF213.

Detailed Metadata

hf213-01: hf adult inventory

  1. site: site code
    • H: Harvard Forest
  2. plot: identifier for individual plots (1-8)
  3. sub: identifier for subplots within individual plots (A, B, C, D)
  4. tag: tag number placed in tree to mark DBH
  5. num: stem number
  6. spp: USDA Plants database species code
    • ACRU: Acer rubrum
    • ACSA3: Acer saccharum
    • BEAL2: Betula alleghaniensis
    • BELE: Betula lenta
    • BEPA: Betula papyrifera
    • BEUN: Betula species unknown
    • CADE12: Castanea dentata
    • CAUN: Carya species unknown
    • FAGR: Fagus grandifolia
    • FRAM2: Fraxinus americana
    • HAVI4: Hamamelis virginiana
    • PIRE: Pinus resinosa
    • PIRU: Picea rubens
    • PIST: Pinus strobus
    • PRSE2: Prunus serotina
    • QUAL: Quercus alba
    • QURU: Quercus rubra
    • QUVE: Quercus velutina
    • TIAM: Tilia americana
    • TSCA: Tsuga canadensis
  7. x: the horizontal distance from the plot reference corner (unit: meter / missing value: NA)
  8. y: the vertical distance from the plot reference corner (unit: meter / missing value: NA)
  9. dbh09: diameter at Breast Height (1.4m) in year 2009 (unit: centimeter / missing value: NA)
  10. field.notes09: field notes in 2009
  11. date09: date field survey was performed in 2009
  12. dbh11: diameter at Breast Height (1.4m) in year 2011 (unit: centimeter / missing value: NA)
  13. field.notes11: field notes in 2011
  14. date11: date field survey was performed in 2011
  15. dbh12: diameter at Breast Height (1.4m) in year 2012 (unit: centimeter / missing value: NA)
  16. field.notes12: field notes in 2012
  17. date12: date field survey was performed in 2012
  18. dbh13: diameter at Breast Height (1.4m) in year 2013 (unit: centimeter / missing value: NA)
  19. mortality13: tree health in 2013
    • A: alive
    • IBS: in bad shape. Holistic description of tree health
    • M: maybe dead. Unable to verify if dead or alive.
    • D: dead
  20. dmg13: damage catagories
    • B: tree bent at angle greater than horizontal to ground (greater than 90 degrees)
    • BBD: beech bark disease
    • CD: canopy damage. Percentage of canopy damaged denoted in notes
    • D: down. Tree down on ground
    • DB: damaged bark. Type of damage denoted in notes.
    • H: hollow
    • HWA: hemlock wooly adelgid
    • L: leaning less than 90 degrees
    • S: snapped. Height of snap denoted in notes.
    • TL: another tree leaning on individual being measured
  21. field.notes13: field notes in 2013
  22. date13: date field survey was performed in 2013
  23. dbh14: diameter at Breast Height (1.4m) in year 2014 (unit: centimeter / missing value: NA)
  24. mortality14: tree health in 2014
    • A: alive
    • IBS: in bad shape. Holistic description of tree health
    • M: maybe dead. Unable to verify if dead or alive.
    • D: dead
  25. dmg14: damage catagories
    • B: tree bent at angle greater than horizontal to ground (greater than 90 degrees)
    • BBD: beech bark disease
    • CD: canopy damage. Percentage of canopy damaged denoted in notes
    • D: down. Tree down on ground
    • DB: damaged bark. Type of damage denoted in notes.
    • H: hollow
    • HWA: hemlock wooly adelgid
    • L: leaning less than 90 degrees
    • S: snapped. Height of snap denoted in notes.
    • TL: another tree leaning on individual being measured
  26. field.notes14: field notes in 2014
  27. date14: date field survey was performed in 2014