Forest Floor Dynamics in Even-Aged Northern Hardwood Stands1
- K. E. Snyder and
- R. D. Harter2
Forest floor beneath three even-aged pin cherry (Prunus pensylvanica L.)-birch (Betula alleghaniensis Britton and B. papyrifera Marsh.) stands were analyzed for concentrations of Ca, Mg, K, N, P, C, and total forest floor mass. A 93-yr-old even-aged northern hardwood stand served as the preharvest comparison. A trend of net forest floor material loss continued beyond canopy closure, with the Oa horizon being responsible for the change. Nutrient concentrations did not change in the Oi horizon over time. The Oe showed a peak Ca concentration at 30 yr of more than two and one-half times that of the younger and preharvest stands. Nitrogen concentration decreased in the Oe horizon and the C/N ratio widened at 10 yr. The Oa horizon had no change in Ca or Mg, but K and N increased significantly in the 10- and 30-yr stands.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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