Annual N and P nutrient levels and foliar resorption in Alnus glutinosa subsp. glutinosa (Betulaceae) leaves

Özbucak T. B., Kutbay H. G., Türkiş S.

Journal of Applied Biological Sciences, vol.3, no.1, pp.6-11, 2009 (Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 3 Issue: 1
  • Publication Date: 2009
  • Journal Name: Journal of Applied Biological Sciences
  • Journal Indexes: Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.6-11
  • Keywords: Alnus glutinosa, Nitrogen, Phosphorus, Resorption efficiency, Resorption proficiency, Specific leaf area
  • Ondokuz Mayıs University Affiliated: Yes


Alnus glutinosa (Betulaceae) has a widespread distribution in the Central Black Sea Region of Turkey. In this study, annual nitrogen (N) and phosphorus (P) and foliar resorption efficiency and proficiency were investigated in A. glutinosa. N and P concentrations were decreased in senescent leaves. Statistically significant differences were found in P concentrations while there were no found significant differences in N concentrations with respect to months. A negative correlation was obtained between SLA and LMA, SLA and N concentrations. However, there were significant correlations between LMA and N concentrations. N and P resorption efficiency (NRE, PRE) and proficiency (NRP, PRP) values were high as compared to the other deciduous species. These results indicate efficient internal cycling of nutrients especially P in A. glutinosa.