2005. Fungal mat transect mapping, High 15 in the Andrews Experimental Forest, 1994-1995 Long-Term Ecological Research Andrews Forest LTER Site. [Database]. Available: https://andrewsforest-stage.forestry.oregonstate.edu/data/fsdb-data-catalog/SP029 Accessed 2026-05-10.

The main objective of this study was to determine if there were relationships between forest floor attributes such as the location of: (1) individual trees, (2) clusters of undergrowth vegetation, (3) coarse woody debris, (4) rocks and (5) topography and both soil characteristics and distribution patterns of ectomycorrhizal fungal mats. This date set includes mat, rock, wood, and moss distribution patterns (as presence or absence at each sampling node) as well as basic soil date taken at the same locations. The forest floor attributes were digitized using ArcInfo®.

Temporal coverage: 1994-01-07 to 1995-07-30

Geographic coverage: N/A

Bounds: W N/A, E N/A, N N/A, S N/A

• Earlier studies on 2 x 10 m plots showed not relationship between the distribution of rocks, trees and CWD and mat distribution patterns on the scale of a few meters. We wanted to determine if relationships between these features and mat distribution patterns could be detected at a larger scale. In this study we jumped from a 1 to at 5 m resolution. At this scale, the effects of large groupings of understory vegetation and large assemblages of CWD on mat distribution could be assessed. It also provided another opportunity to look at the role mats play in soil biogeochemical processes, supporting earlier studies

Title: Long-Term Ecological Research

• Robert P. Griffiths
  Role: Principal Investigator
  Oregon State University;Dept. of Forest Science;321 Richardson Hall, Corvallis, OR, 97331-5752, USA
  Phone: (541) 737-6559
  Email: bbgriff@peak.org, griff@for.orst.edu
• Theresa J. Valentine
  Role: Distributor
  USDA Forest Service;Pacific NW Research Station;3200 SW Jefferson Way, Corvallis, OR, 97331, USA
  Phone: (541) 750-7333
  Email: theresa.valentine56@gmail.com

• Information Manager
  Andrews Forest LTER Program, US Forest Service Pacific Northwest Research Station, 3200 SW Jefferson Way, Corvallis, OR, 97331
  Email: hjaweb@fsl.orst.edu
  URL: http://andrewsforest.oregonstate.edu/
• Theresa J. Valentine
  USDA Forest Service;Pacific NW Research Station;3200 SW Jefferson Way, Corvallis, OR, 97331, USA
  Phone: (541) 750-7333
  Email: theresa.valentine56@gmail.com

• Andrews Forest LTER Site
  Role: Publisher
  Forest Ecosystems and Society Department in Forestry, Oregon State University, 201K Richardson Hall, Corvallis, OR, 97331-5752
  Phone: (541) 737-8480
  Email: lterweb@fsl.orst.edu
  URL: http://andrewsforest.oregonstate.edu/

The main objective of this study was to determine if there were relationships between forest floor attributes such as the location of: (1) individual trees, (2) clusters of undergrowth vegetation, (3) coarse woody debris, (4) rocks and (5) topography and both soil characteristics and distribution patterns of ectomycorrhizal fungal mats. This date set includes mat, rock, wood, and moss distribution patterns (as presence or absence at each sampling node) as well as basic soil date taken at the same locations. The forest floor attributes were digitized using ArcInfo®. Earlier studies on 2 x 10 m plots showed not relationship between the distribution of rocks, trees and CWD and mat distribution patterns on the scale of a few meters. We wanted to determine if relationships between these features and mat distribution patterns could be detected at a larger scale. In this study we jumped from a 1 to at 5 m resolution. At this scale, the effects of large groupings of understory vegetation and large assemblages of CWD on mat distribution could be assessed. It also provided another opportunity to look at the role mats play in soil biogeochemical processes, supporting earlier studies Processing Procedures - SP029

Purpose: Earlier studies on 2 x 10 m plots showed not relationship between the distribution of rocks, trees and CWD and mat distribution patterns on the scale of a few meters. We wanted to determine if relationships between these features and mat distribution patterns could be detected at a larger scale. In this study we jumped from a 1 to at 5 m resolution. At this scale, the effects of large groupings of understory vegetation and large assemblages of CWD on mat distribution could be assessed. It also provided another opportunity to look at the role mats play in soil biogeochemical processes, supporting earlier studies

Method Steps

Sampling

No software entries listed in this EML file.

• LTER controlled vocabulary: biological processes (theme), primary production (theme), inorganic nutrients (theme), organic matter (theme), ecosystems (theme), fungi (theme), mycorrhizae (theme)
• Andrews Experimental Forest site thesaurus: Long-Term Ecological Research (LTER) (theme), ecosystem processes (theme)
• LTER core research areas: primary production (theme), inorganic nutrients (theme), organic matter (theme)

No taxonomic hierarchy listed in this EML file.

No data tables listed in this EML file.

No data tables listed in this EML file.

No units listed in this EML file.

No related dataset codes found in the EML text fields.

No publication citations found in this EML file.

No related files listed in this EML file.

Data Use Agreement:

The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. This Data Set is released under the Creative Commons license CC BY "Attribution" (see: https://creativecommons.org/licenses/by/4.0/). Creative Commons license CC BY - Attribution is a license that allows others to distribute, remix, tweak, and build upon your work (even commercially), as long as you are credited for the original creation. This license accommodates maximum dissemination and use of licensed materials.

It is considered professional conduct and an ethical obligation to acknowledge the work of other scientists. The Data User is asked to provide attribution of the original work if this data package is shared in whole or by individual parts or used in the derivation of other products. A recommended citation is provided for each Data Set in the Andrews LTER data catalog (see: http://andlter.forestry.oregonstate.edu/data/catalog/datacatalog.aspx). A generic citation is also provided for this Data Set on the website https://portal.edirepository.org in the summary metadata page. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.

While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed and all data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data.

General acknowledgement: 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.

License: N/A

Maintenance update frequency: notPlanned

Description

• An update history is logged and maintained with each new version of every dataset.

Change History

• Version1 (1994-07-30)
  GIS coverage creation date.
• Version2 (2004-11-03)
  Metadata files created in ARC/catalog as HTML format. ARC/Info Export files, shape files, or other data file on ftp.fsl.orst.edu.
• Version3 (2005-06-17)
  Upper level gis metadata (catalog, databases, entity, sub_entity, catalog_component, cross_reference, update_history) restructured and moved into SQLServer metadata database LTERMETA.