The spatial influence of Pseudotsuga menziesii retention trees on ectomycorrhiza diversity.

D.L. Luoma; C.A. Stockdale; R. Molina; J.L. Eberhart

doi:10.1139/x06-143

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The spatial influence of Pseudotsuga menziesii retention trees on ectomycorrhiza diversity.

Informally Refereed

Authors:

D.L. Luoma, C.A. Stockdale, R. Molina, J.L. Eberhart

Year:

2006

Type:

Scientific Journal

Station:

Pacific Northwest Research Station

DOI:

https://doi.org/10.1139/x06-143

Source:

Canadian Journal of Research Forestry. 36: 2561-2573

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Download (PDF 2.40 MB): https://research.fs.usda.gov/download/treesearch/29736.pdf

Abstract

This study examines the effect of retained green trees on diversity of mycorrhizal fungi after stand harvest. A significant reduction of mycorrhizal root type richness resulted from the harvest treatment. Samples taken under tree crowns showed no significant decline in the mean number of mycorrhiza types per soil core. In areas well removed from retention trees, there was a 50-percent decline in the number mycorrhizal types per soil core. Soil cores taken just outside the dripline and in open areas exhibited a shift in mycorrhizal community structure. Retention trees can act as important refugia for mycorrhizal fungi and thus affect seedling establishment and function in developing forests after harvest.

Keywords

Root density, soil microbial ecology, ecosystem function

Citation

Luoma, D.L.; Stockdale, C.A.; Molina, R.; Eberhart, J.L. 2006. The spatial influence of Pseudotsuga menziesii retention trees on ectomycorrhiza diversity. Canadian Journal of Research Forestry. 36: 2561-2573