Arbuscular mycorrhizal propagule densities respond rapidly to ponderosa pine restoration treatments
Korb JE, Johnson NC, Covington WW. 2003. Arbuscular mycorrhizal propagule densities respond rapidly to ponderosa pine restoration treatments. Journal of Applied Ecology. 40(1):101-110
The inoculum potential for arbuscular mycorrhizae (AM) and ectomycorrhizal (EM) fungi was investigated in thinned-only, thinned and prescribed burned (both restoration treatments) and unthinned and unburned control stands in northern Arizona ponderosa pine forests. The relative amount of infective propagules of AM fungi was significantly higher in samples collected from both restoration treatments than their paired controls (unthinned and unburned stands). In contrast, the same restoration treatments had no significant effect on the relative amount of infective propagules of EM fungi. The relative amount of infective propagules of AM fungi was significantly positively correlated with graminoid cover and herbaceous understorey species richness and negatively correlated with overstorey tree canopy cover and litter cover.
- Type
- Journal Article
- Authors
- Korb, Julie; Johnson, Nancy; Covington, W
- Units
- PARA
- Keywords
- disturbance, Fungi, Mt. Trumbull, Mycorrhizae, ponderosa pine, vegetation