Forest Floor Estimates for the Eastern United States

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: USDA Forest Service, Southern Global Change Program
Publication_Date: Unknown
Title: Forest Floor Estimates for the Eastern United States
Edition:
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name:
Issue_Identification:
Publication_Information:
Publication_Place:
Publisher: U.S. Department of Agriculture
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Online_Linkage:
Description:
Abstract:
Foresters commonly separate forest floor or down woody materials (DWM) into three successive layers: (1) branches and logs (fine and coarse woody material), (2) litter, and (3) duff. Additionally, live and dead understory shrubs and herbs are included with forest floor measurements. Duff includes the dark, partly decomposed organic material (where plant forms are unrecognizable) above mineral soil. On top of duff is litter, which includes recognizable plant parts such as leaves and flowers but not branches. Branches are separated into three size classes of fine woody material (FWM): <6, 6 to 25, and 26 to 76 mm in diameter. These classes correspond to 1-hour, 10-hour, and 100-hour fire fuel classes, respectively. Coarse woody material (CWM) includes all logs >76 mm in diameter and corresponds to the 1000-hour fuel class. The US Department of Agriculture Forest Inventory and Analysis (FIA) program currently measures variables related to DWM on a Phase 3 (P3) subsample of its Phase 2 (P2) plots. We used P3 and P2 FIA data to estimate DWM for all plots in the eastern half of the FIA database. First we acquired, compiled, and computed mass on CWM, FWM, litter, duff, and shrub/herb cover from different data sources, then we developed regression models to predict DWM components for extension to almost 100,000 eastern FIA plots. The models for estimating DWM for all FIA plots produced rather weak correlations to several climate and dead-tree variables, and these results could only be improved with modification of FIA field procedures. Average fuel mass for the eastern US are 6.0, 6.1, 5.3, 9.6, and 1.3 Mg/ha for CWM, FWM, litter, duff, and shrub/herb cover, respectively. The total of all DWM components for the eastern US is approximately 2,000 Tg or 17% of the total forest biomass, which includes 9,000 Tg live and 500 Tg dead biomass in standing trees. The purpose behind the development of this dataset is a regional-scale estimate of down woody materials that contribute to prescribed and wildland fire fuels. After developing accurate models of down woody materials by fuel class, location, and other forest attributes, we will then link the models to PEcon, a species-level forest growth and economics model, to predict down woody materials and fuel loads in response to changes in climate, land use, species composition, and timber markets.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: 2001, Wildfire Risk in the Eastern United States -- NFP 01.SRS.C.1 {4F6C76F6-8F53-41D3-8F9F-F39311252C42} Geospatial Data Presentation Form: report FRAMES resource id = {4F6C76F6-8F53-41D3-8F9F-F39311252C42} Chojnacky, D.C., S.G. McNulty, J.A. Moore Myers, and M.K. Gavazzi Estimating forest floor fuels in eastern US forests -- {8449C6BE-767B-438A-A4FC-004AB733FE5D} Presented at EastFIRE Conference. Fairfax, VA, May 2005. This publication is available online at http://www.comet.ucar.edu/outreach/abstract_final/EastFIREConfProc/Abstracts/Session%203A%20PDF/3A_Chojnacky.pdf Chojnacky, D.C., R.A. Mickler, and L.S. Heath 2001 and 2002 Down Woody Materials P3 Data for Eastern U.S. Forests -- {38A73EBB-3AD8-48E0-9C51-27732EE7B180}, poster; 10th Annual Forest Health Monitoring Working Group Meeting. Sedona, AZ, February 2004. This publication is available for download at: http://fhm.fs.fed.us/posters/posters04/dwm1.pdf from the USDA Forest Service National Forest Health Monitoring Program at http://fhm.fs.fed.us/pubs/index.sht http://fhm.fs.fed.us/posters/posters04/dwm1.pdf Chojnacky, D.C., R.A. Mickler, L.S. Heath, and C.W. Woodall, 2004 Estimates of Down Woody Materials in Eastern US Forests -- {31344AC0-24EC-4A22-8575-3979308DB53B} Environmental Management 33 (Supplement 1): S44-S55. This citation documents the dataset. available for download through SpringerLink at website below: http://www.springerlink.com/(v4ddmxngqc4jgaysbckwqt55)/app/home/contribution.as p?referrer=parent&backto=issue,4,48;journal,27,96;linkingpublicationresults,1:1 00370,1 http://www.springerlink.com/(v4ddmxngqc4jgaysbckwqt55)/app/home/contribution.as p?referrer=parent&backto=issue Chojnacky, D.C., T.M. Schuler2004 Amounts of down woody materials for mixed-oak forests in Kentucky, Virginia, Tennessee, and North Carolina -- {3F8C6E1F-F5D5-4289-9FBD-E3166AAA83C5} Southern Journal of Applied Forestry 28(2): 113-117. This citation documents the dataset. This publication is in the Tall Timbers Fire Ecology Database but is available through the Society of American Foresters at http://www.safnet.org/ http://www.safnet.org/ Chojnacky, D.C., R.A. Mickler, and L.S. Heath Carbon in Down Woody Materials of Eastern U.S. Forests -- {79147633-67E7-4A1C-BD12-4C82F90828FF} Geospatial Data Presentation Form: Conference proceedings Second Annual Conference on Carbon Sequestration. Alexandria, VA, May 2003. This publication is available through the Second Annual Conference on Carbon Sequestration website at http://www.carbonsq.com/ -- pdf file may be downloaded http://www.carbonsq.com/ Chojnacky, D.C., R.A. Mickler, and L.S. Heath Biomass in Down Woody Materials of Eastern US Forests -- {EF832EAE-2BFA-4CA2-9BB3-14F57483F3B9} Geospatial Data Presentation Form: annual meeting talk 88th Ecological Society of America Annual Meeting. Savannah, GA, August 2003. Chojnacky, D. C., L.S. Heath, 2002 Estimating Down Deadwood from FIA Forest Inventory Variables in Maine -- {0E73BE0D-D3DE-4682-82FF-FF6B72290C44} Environmental Pollution 116: S25-S30. This citation documents the dataset. This publication may be obtained from the Southern Research Station at http://www.srs.fs.usda.gov/pubs/7022 or at http://www.srs.fs.usda.gov/pubs/ja/ja_chojnacky001.pdf http://www.srs.fs.usda.gov/pubs/7022 http://www.srs.fs.usda.gov/pubs/ja/ja_chojnacky001.pdf Chojnacky, D.C., R.A. Mickler, and L.S. Heath Monitoring Down Woody Materials in Eastern U.S. Forests -- {86B4DB0A-A769-4A19-B077-B4CD18D9BD8A} Conference proceedings International IUFRO Conference on Monitoring and Indicators of Forest Biodiversity in Europe--From Ideas to Operationality. Florence, Italy, November 2003.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20010101
Ending_Date: 20021231
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -106.65
East_Bounding_Coordinate: -66.95
North_Bounding_Coordinate: 47.35
South_Bounding_Coordinate: 25.0
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > AGRICULTURE > FOREST SCIENCE > FOREST FIRE SCIENCE
Theme_Keyword: Fuels
Theme_Keyword: Fire Behavior
Theme_Keyword: Models
Theme_Keyword: Forest Floor
Theme_Keyword: Biomass
Theme_Keyword: Litter
Theme_Keyword: Understory Shrubs
Theme_Keyword: Fire Fuel Class
Theme_Keyword: Southeastern United States
Theme_Keyword: BIOTA
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > EASTERN UNITED STATES
Access_Constraints: P2 and P3 are available to the public via the national FIA Program web repository: http://www.ncrs.fs.fed.us/4801/tools-data/data/. Modeled DWM estimates are not accessible until after publication.
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: MICHAEL GAVAZZI
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: 920 Main Campus Drive, Suite 300
City: Raleigh
State_or_Province: NC
Postal_Code: 27606
Country: United States
Contact_Voice_Telephone: 919.515.2916
Contact_Electronic_Mail_Address: mgavazzi@fs.fed.us
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Residuals for the separate DWM class estimates are available with the dataset. Chojnacky, D.C., Mickler, R.A., Heath, L.S., Woodall, C.W. 2004. Estimates of down woody materials in eastern US forests. Environmental Management 33(Supplement 1): S44-S55.
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA/FS/SRS/SGCP > Southern Global Change Program, Southern Research Station, Forest Service, Department of Agriculture
Contact_Person: SOUTHERN GLOBAL CHANGE RESEARCH PROGRAM OFFICER
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: 920 Main Campus Drive, Suite 300
City: Raleigh
State_or_Province: NC
Postal_Code: 27606
Resource_Description: USDA_forestfloorfuelestimates
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.sgcp.ncsu.edu/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://mercury-ops2.ornl.gov/clearinghouse/send/xs...
Access_Instructions:
Metadata in Biological Data Profile format.
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 20051229
Metadata_Review_Date: 20140403
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: TYLER B. STEVENS
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: NASA Goddard Space Flight Center
Address: Global Change Master Directory
City: Greenbelt
State_or_Province: MD
Postal_Code: 20771
Country: USA
Contact_Voice_Telephone: (301) 614-6898
Contact_Facsimile_Telephone: 301-614-5268
Contact_Electronic_Mail_Address: Tyler.B.Stevens@nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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