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DF020

Fire history dendrochronology study, super old growth data, central western Cascades, Oregon, 2002

  • PI: Frederick J. Swanson
  • Originator: Sheryl K. Giglia
  • Other researchers: Peter D. Adrian Teensma, Peter H. Morrison, Peter J. Weisberg
  • Dates of data preparation: Jan 9 2002 - Jan 9 2002
  • Data collection status: Study collection is completed and no new collection is planned
  • Data access: Online
  • Last update: Dec 11 2013 (Version 6)
<Citation>     <Acknowledgement>     <Disclaimer>    
Swanson, F.; Giglia, S. 2013. Fire history dendrochronology study, super old growth data, central western Cascades, Oregon, 2002. Long-Term Ecological Research. Forest Science Data Bank, Corvallis, OR. [Database]. Available: http://andlter.forestry.oregonstate.edu/data/abstract.aspx?dbcode=DF020 (10 December 2019) .
Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 1440409), US Forest Service Pacific Northwest Research Station, and Oregon State University.
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 Andrews LTER shall not be liable for damages resulting from any use or misinterpretation of data sets.
ABSTRACT:
The primary objectives of this study were to assay where super old-growth (SOG) persists on the landscape, what factors enabled it to survive for more than 550 years, and to develop a predictive model for the occurrence of SOG. To meet these objectives, data were synthesized from prior fire history work done in the central western Cascades of Oregon (Morrison and Swanson unpublished; Teensma 1987; Morrison and Swanson 1990; Weisberg 1998). The study involved the following steps: (1) the collection of primary data and maps from each study, (2) the creation of a master database, and (3) analysis of the synthesized data.

Study Description Study Site Map Download Study Location Information: (CSV)
Download Full Documentation: (PDF)(EML)
ENTITY TITLES:
1Super-old growth study sample site locations for supplemental field work (Sept. 2002 ) MAP / METADATADATA
2Fire history studies used for super-old growth study, Giglia et. al. 2003, synthesis from Morrison & Swanson (unpublished); Teensma (1987); Weisberg (1998) and Giglia (unpublished) supplemental data,sample site locations MAP / METADATADATA
3Super-old growth study area boundary MAP / METADATADATA
4Super-old growth study area boundary, divided into sub basins MAP / METADATADATA
5Patches of terrain that fit the predictive model for SOG, have been harvested since 1977, and have not been previously sampled MAP / METADATADATA
6Reclassified grid with four quadrant aspect classes and three slope position classes, generated from 10 meter DEM MAP / METADATADATA
7Predictive model for super-old growth study, derived from intersection of NW and NE aspects and slope class "1" MAP / METADATADATA
8Reclassified grid with three slope gradient classes defined, generated from 10 meter DEM MAP / METADATADATA
9Reclassified grid with four elevation classes, generated from 10 meter DEM MAP / METADATADATA
10Digital elevation model grid (10 meter DEM) covering the rectangular extent of super-old growth study area MAP / METADATADATA
11Willamette National Forest vegetation classification (1998) clipped to the extent of super-old growth study area. MAP / METADATADATA
12Morrison & Swanson unpublished fire history reconnaissance study (1975 and 1976) sample site locations MAP / METADATADATA
13Morrison & Swanson (1990) fire history study area boundary, as documented by Giglia MAP / METADATADATA
14Morrison & Swanson unpublished fire history reconnaissance study (1975 and 1976) area boundary, as documented by Giglia MAP / METADATADATA
15Subset of synthesis of sample site locations from Morrison & Swanson (unpublished); Teensma (1987); Weisberg (1998) fire history studies, and Giglia (unpublished), only of sites where SOG was found MAP / METADATADATA
16Teensma (1987) fire history study sample site locations and attributes MAP / METADATADATA
17Teensma (1987) fires history study area boundary MAP / METADATADATA
18Edited copy of sample site locations obtained from Peter Weisberg (used for his 1998 publication),as documented by Giglia MAP / METADATADATA
19Weisberg (1998) fire history study area boundary, as documented by Giglia MAP / METADATADATA
20Annual-scale fire chronology data collected by Weisberg (1998), edited copy of sample site locations and original MAP / METADATADATA