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SP030

Mycorrhizal map sampling data in different age class plots of Douglas-fir forests, Andrews Experimental Forest, 1992-2005

  • Creator(s): Robert P. Griffiths
  • PI(s): Robert P. Griffiths
  • Originator(s): Robert P. Griffiths
  • Other researcher(s): Gay A. Bradshaw, Barbara J. Marks, George W. Lienkaemper
  • Dates of data preparation: Jul 1 1992 - Jun 20 2005
  • Data collection status: Study collection is completed and no new collection is planned
  • Data access: Online
  • Last update: Jun 23 2005 (Version 3)
<Citation>     <Acknowledgement>     <Disclaimer>    
Griffiths, R. 2005. Mycorrhizal map sampling data in different age class plots of Douglas-fir forests, Andrews Experimental Forest, 1992-2005. Long-Term Ecological Research. Forest Science Data Bank, Corvallis, OR. [Database]. Available: http://andlter.forestry.oregonstate.edu/data/abstract.aspx?dbcode=SP030. Accessed 2024-12-10.
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:

Ectomycorrhizal mats in forest soils have a wide global distribution and are apparently important to nutrient cycling. Since little known about the factors influencing their distribution we have conducted one of the first studies attempting to define the factors influencing mat distribution. We chose to study distribution patterns of mat-forming ectomycorrhizal fungi of the genera Hysterangium and Gautieria in coniferous forests of the Pacific northwestern United States by mapping ectomycorrhizal mats and other forest floor features in 2 x 10 meter plots and digitized into a Geographical Information System (GIS) for spatial pattern analysis.

Distribution was measured in terms of mat size, size variability and shape, total mat cover per stand age, nearest neighbor distances, and correlation with understory vegetation and tree age using the digitized plot mats. While GIS analysis indicated that Hysterangium and Gautieria did not physically overlap, there appears to be a tendency for clustering of mats. No apparent correlations were observed between forest floor features and mats located within the 2 x 10 meter grids. Mat distributions were found to vary temporally; total mat area, size and frequency differed for Hysterangium and Gautieria mats when comparing young, mature and old-growth stands. The GIS analysis has been reported by Griffiths et. al. 1996 (Pub 2251) and the digitized plot maps on which these analyses were based are available in this data set.

Study Description Download Study Location Information: (CSV)
Ecological Metadata Language: (EML)
ENTITY TITLES:
1Sites of mycorrhizal sampling data in different age class plots of Douglas-fir forests, Andrews Experimental Forest and vicinity MAP / METADATADATA
2Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 10y1 MAP / METADATADATA
3Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 10y2 MAP / METADATADATA
4Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 10y3 MAP / METADATADATA
5Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 6y1 MAP / METADATADATA
6Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 6y2 MAP / METADATADATA
7Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 6y3 MAP / METADATADATA
8Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 7y1 MAP / METADATADATA
9Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 7y2 MAP / METADATADATA
10Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 7y3 MAP / METADATADATA
11Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 10c1 MAP / METADATADATA
12Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 10c2 MAP / METADATADATA
13Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 10c3 MAP / METADATADATA
14Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 6c1 MAP / METADATADATA
15Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 6c2 MAP / METADATADATA
16Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 6c3 MAP / METADATADATA
17Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 7c1 MAP / METADATADATA
18Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 7c2 MAP / METADATADATA
19Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot 7c3 MAP / METADATADATA
20Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot ms1_1 MAP / METADATADATA
21Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot ms1_2 MAP / METADATADATA
22Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot ms1_3 MAP / METADATADATA
23Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot ms2_1 MAP / METADATADATA
24Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot ms2_2 MAP / METADATADATA
25Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot ms2_3 MAP / METADATADATA
26Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot ms3_1 MAP / METADATADATA
27Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot ms3_2 MAP / METADATADATA
28Distribution of mats similar to those found in the genus Gautieria and Hysterangium, plot ms3_3 MAP / METADATADATA
29Surface features of rocks, roots, logs and vegetation, plot 10y1 MAP / METADATADATA
30Surface features of rocks, roots, logs and vegetation, plot 10y2 MAP / METADATADATA
31Surface features of rocks, roots, logs and vegetation, plot 10y3 MAP / METADATADATA
32Surface features of rocks, roots, logs and vegetation, plot 6y1 MAP / METADATADATA
33Surface features of rocks, roots, logs and vegetation, plot 6y2 MAP / METADATADATA
34Surface features of rocks, roots, logs and vegetation, plot 6y3 MAP / METADATADATA
35Surface features of rocks, roots, logs and vegetation, plot 7y1 MAP / METADATADATA
36Surface features of rocks, roots, logs and vegetation, plot 7y2 MAP / METADATADATA
37Surface features of rocks, roots, logs and vegetation, plot 7y3 MAP / METADATADATA
38Surface features of rocks, roots, logs and vegetation, plot 10c1 MAP / METADATADATA
39Surface features of rocks, roots, logs and vegetation, plot 10c2 MAP / METADATADATA
40Surface features of rocks, roots, logs and vegetation, plot 10c3 MAP / METADATADATA
41Surface features of rocks, roots, logs and vegetation, plot 6c1 MAP / METADATADATA
42Surface features of rocks, roots, logs and vegetation, plot 6c2 MAP / METADATADATA
43Surface features of rocks, roots, logs and vegetation, plot 6c3 MAP / METADATADATA
44Surface features of rocks, roots, logs and vegetation, plot 7c1 MAP / METADATADATA
45Surface features of rocks, roots, logs and vegetation, plot 7c2 MAP / METADATADATA
46Surface features of rocks, roots, logs and vegetation, plot 7c3 MAP / METADATADATA
47Surface features of rocks, roots, logs and vegetation, plot ms1_1 MAP / METADATADATA
48Surface features of rocks, roots, logs and vegetation, plot ms1_2 MAP / METADATADATA
49Surface features of rocks, roots, logs and vegetation, plot ms1_3 MAP / METADATADATA
50Surface features of rocks, roots, logs and vegetation, plot ms2_1 MAP / METADATADATA
51Surface features of rocks, roots, logs and vegetation, plot ms2_2 MAP / METADATADATA
52Surface features of rocks, roots, logs and vegetation, plot ms2_3 MAP / METADATADATA
53Surface features of rocks, roots, logs and vegetation, plot ms3_1 MAP / METADATADATA
54Surface features of rocks, roots, logs and vegetation, plot ms3_2 MAP / METADATADATA
55Surface features of rocks, roots, logs and vegetation, plot ms3_3 MAP / METADATADATA