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were synthesized from prior fire history work done in the central western Cascades of Oregon (Morrison and Swanson unpublished; Teensma 1987; Morrison and Swanson 1990; Weisberg 1998).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 al. 2003, synthesis from Morrison & Swanson (unpublished); Teensma (1987); Weisberg (1998) and Giglia (unpublished) supplemental data,sample site locations MAP / METADATA DATA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12 Morrison & Swanson unpublished fire history reconnaissance study (1975 and 1976) sample site locations MAP / METADATA DATA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14 Morrison & Swanson unpublished fire history reconnaissance study (1975 and 1976) area boundary, as documented by Giglia MAP / METADATA DATA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