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Bracken is a broadly distributed weedy fern common in disturbed habitats. Frond and rhizosphere soil samples were obtained from bracken growing in three clearcut locations in the Willamette National Forest in western Oregon. The highest frond biomass was correlated with soil having the highest total %N, lowest Fe content and oldest geological age. Based on analysis of variance of principal component...
Soil and litter organisms are important indicators of stress and disturbance to forest ecosystems. In this study, soil and litter organisms were monitored for their response to different forest management practices. Litter and soil cores (0-10, 10-20cm) were collected at approximately 8 week intervals over a 19 month period from a low elevation 110-140-year-old Douglas-fir forest and adjacent 8-year-old...
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