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TP122

Long-Term Ecosystem Productivity (LTEP) tree measurement plots in the Rogue River-Siskiyou National Forest, a 20-year inventory including Biscuit Fire effects

  • Creator(s): Bernard T. Bormann, David V. D'Amore
  • PI(s): David V. D'Amore
  • Originator(s): Bernard T. Bormann
  • Other researcher(s): S. Mark Nay, Brett A Morrissette, Kylie M. Meyer, Peter S. Homann, Robyn L. Darbyshire
  • Dates of data collection: Jan 1 1992 - Dec 31 2010
  • Data collection status: Study continues and further data collection is planned
  • Data access: Online
  • Access constraint: Please notify one of the LTEP researchers listed here if you would like to use these data in any publication.
  • Last update: Feb 14 2017 (Version 3)
<Citation>     <Acknowledgement>     <Disclaimer>    
Bormann, B.; D'Amore, D. 2017. Long-Term Ecosystem Productivity (LTEP) tree measurement plots in the Rogue River-Siskiyou National Forest, a 20-year inventory including Biscuit Fire effects. Long-Term Ecosystem Productivity. Forest Science Data Bank, Corvallis, OR. [Database]. Available: http://andlter.forestry.oregonstate.edu/data/abstract.aspx?dbcode=TP122. Accessed 2024-07-18.
Data sets were provided by the Forest Science Data Bank, a partnership between the Department of Forest Science, Oregon State University, and the U.S. Forest Service Pacific Northwest Research Station, Corvallis, Oregon.
While substantial efforts are made to ensure the accuracy of data and documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is". The FSDB shall not be liable for damages resulting from any use or misinterpretation of data sets.
ABSTRACT:
Permanent tree measurement plots were installed (1.5 ha) within 27 seven-hectare experimental units in the Rogue River-Siskiyou National Forest between 1992 and 1995. Plots were established with very wide buffers to follow long-term development of trees as a stand, to protect a central measurement plot, and to allow for destructive sampling in buffers. Vegetation treatments were implemented in 1997. The Biscuit complex wildfire burned about half the plots in 2002. Standard measurements on all live trees (dbh > 3.5 cm) were collected 10 times between 1992 and 2010 including species, dbh, and treetop and base of live-crown heights. Additional measurements of sapwood thickness and rings in sapwood on all trees > 20 cm dbh were made and a subsample of live trees was cored for breast-height age. Biomass was determined from both derived and existing equations. Douglas-fir is the primary conifer species.

Study Description Taxonomic Hierarchy Download Study Location Information: (CSV)
Ecological Metadata Language: (EML)
ENTITY TITLES:
1LTEP 20-year tree plot inventory data set (Jan 1 1992 - Dec 31 2010)METADATADATA
20-year inventory of LTEP tree plots in the Rogue River-Siskiyou National Forest
2LTEP 20-year tree plot location data set (Jan 1 1992 - Dec 31 2010)METADATADATA
Description of 20-year LTEP tree plot location codes and names in the Rogue River-Siskiyou National Forest
3LTEP 8-year fire-affected tree plot inventory data set (Jan 1 2003 - Dec 31 2010)METADATADATA
8-year inventory of Biscuit Fire effects on LTEP tree plots in the Rogue River-Siskiyou National Forest

RELATED MATERIALS:
 TP122 supplemental method tables - Pre-treatment stand variability calculations of tree density and basal area (Table 1) and vegetation treatments implemented in 1997 (Table 2)