Title
NITROGEN FERTILIZER EFFECTS ON BLACK CHERRY (PRUNUS SEROTINA EHRH) REGENERATION IN ALLEGHENY HARDWOOD FORESTS
Date of Award
4-13-2018
Semester of Degree
May
Document Type
Open Access Thesis
Major Professor
Dr. Russell Briggs
Steering Committee Member
Dr. Todd Ristau
Steering Committee Member
Dr. Robert Long
Steering Committee Member
Dr. Christopher Nowak
Abstract
Declining nitrogen inputs in the soil profile from the Clean Air Act Amendment (CAAA) may be responsible for the decrease in black cherry (Prunus serotina Ehrh) vigor in Allegheny Hardwood Forests. A low rate of 3.39N kg/ ha fertilizer was applied to five treatment plots to replicate the amount of nitrogen missing in the soil profile and a high rate of N and P-fertilizer was applied to three additional plots. The treated plots were compared to control plots and pre-treatment plots in 2015 and 2016. For both fertilizer rates, new red maple seedlings significantly increased in control and fertilized plots in 2016. In the high N-fertilized sites, black cherry seedlings (0.3 to 0.9m) significantly increased and new birch seedlings significantly decreased. Sites with black cherry advanced regeneration can keep black cherry in the mix by adding relatively higher levels of fertilizer which reduces birch seedling establishment and favors other species.
Recommended Citation
Fruehan, Nicolette, "NITROGEN FERTILIZER EFFECTS ON BLACK CHERRY (PRUNUS SEROTINA EHRH) REGENERATION IN ALLEGHENY HARDWOOD FORESTS" (2018). Dissertations and Theses. 24.
https://digitalcommons.esf.edu/etds/24