TP001

Permanent Sample Plot (PSP) data - common data for Permanent vegetation plots in the Pacific Northwest (TV010), Watershed 2 and Hagan (TP091), Watersheds 6 and 7 (TP114) and Watersheds 8 and 9 (TP115)

• Creator(s): Mark E. Harmon, Suzanne M. Remillard
• PI(s): David Bell
• Originator(s): Donald L. Henshaw
• Other researcher(s): Suzanne M. Remillard, Andrew Bluhm
• Dates of data collection: Feb 1 1910 - Present
• Data collection status: Study continues and further data collection is planned
• Data access: Online
• Last update: Jun 14 2023 (Version 3)

<Citation>     <Acknowledgement>     <Disclaimer>    

Harmon, M.; Remillard, S. 2023. Permanent Sample Plot (PSP) data - common data for Permanent vegetation plots in the Pacific Northwest (TV010), Watershed 2 and Hagan (TP091), Watersheds 6 and 7 (TP114) and Watersheds 8 and 9 (TP115). Long-Term Ecological Research. Forest Science Data Bank, Corvallis, OR. [Database]. Available: http://andlter.forestry.oregonstate.edu/data/abstract.aspx?dbcode=TP001. Accessed 2024-05-08.

Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), 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:
	This database contains a common structure (entities 1, 2, 3) for long-term growth, mortality and regeneration of trees in Permanent vegetation Sample Plots, which are a network of more than 130 permanent vegetation plots provides long-term information on patterns and rates of forest succession in most of the major forest zones of the Pacific Northwest, and a variety of watershed studies within and near the Andrews Experimental Forest. The data for individual stands are watersheds are served through various other database codes including TV010, TP041, TP073, TP091, TP114, TP115. This database also includes individual, stand and plot summary data (entities 6, 7, 8, 9, 10, 11) and equations for density, basal area, volume and biomass of live and dead trees and bole net primary productivity. These data are recalculated after each remeasurement. Entity 12 contains the activity history by plot across the network. Other entities provide specific information on plots, stands, and individual trees used for management purposes.

Study Description

Study Site Map

Taxonomic Hierarchy

Download Study Location Information: (CSV) Ecological Metadata Language: (EML)

ENTITY TITLES:
1	Master tree identification (Feb 1 1910 - Aug 17 2022)	METADATA	DATA
	A complete and unique list of all trees that are currently tagged or were ever tagged across all the vegetation studies in the permanent sample plots and Andrews watersheds.
2	Tree remeasurement (Feb 1 1910 - Aug 17 2022)	METADATA	DATA
	Table containing periodic remeasurement data of individual trees within reference stands
3	Tree mortality (Feb 1 1910 - Aug 17 2022)	METADATA	DATA
	Table recording individual tree mortality year and contributing conditions and causes of mortality
4	Plot attributes	METADATA	Data not online
	General current plot attributes. For specific history by plot and year see entity 12.
5	Stand attribute data	METADATA	Data not online
	General stand information
6	Stand by species summaries for density, basal area, volume and biomass of live and dead trees (Feb 1 1910 - Sep 3 2019)	METADATA	DATA
7	Stand by species summaries for bole npp (Feb 1 1910 - Sep 3 2019)	METADATA	DATA
8	Plot by species summaries for density, basal area, volume and biomass of live and dead trees (Feb 1 1910 - Sep 3 2019)	METADATA	DATA
9	Plot by species summaries for bole npp (Feb 1 1910 - Sep 3 2019)	METADATA	DATA
10	Equation Set	METADATA	DATA
	A complete list of the equations for each tree species used to calculate volume and biomass.
11	Individual tree summaries for density, basal area, volume and biomass of live and dead trees (Feb 1 1910 - Sep 3 2019)	METADATA	DATA
	used to create summaries
12	Activity history by plot and year (Jan 1 1910 - Aug 17 2022)	METADATA	DATA
	A full matrix describing the measurement activity of plots within stands by year; used by programs to calculate summaries
13	Stand remeasurement management	METADATA	Data not online
	Used for administration of project
14	Spatial data for Individual tree position	METADATA	Data not online
	Used for making stem maps
RELATED DATABASES:
	Long-term growth, mortality and regeneration of trees in permanent vegetation plots in the Pacific Northwest, 1910 to present (TV010)
	Dendrometer studies for stand volume and height measurements of trees of the western US, 1976 to 1993 (TV009)
	Post-logging community structure and biomass accumulation in Watershed 10, Andrews Experimental Forest , 1974 to present (TP041)
	Ecosystem dynamics in a mature (Hagan block) and old-growth (Watershed 2) forest, Andrews Experimental Forest, 1981 to present (TP091)
	Plant succession and biomass dynamics following logging and burning in Watersheds 1 and 3, Andrews Experimental Forest, 1962 to Present (TP073)
	Pacific Northwest Plant Biomass Component Equation Library (TP072)
	Plant biomass dynamics following logging, burning, and thinning in Watersheds 6 and 7, Andrews Experimental Forest, 1979 to present (TP114)
	Plant biomass dynamics in old-growth Watersheds 8 and 9 at the Andrews Experimental Forest, 2003 to present (TP115)