Resumen

Populus caspica, as endemic and endangered poplar species, and Alnus glutinosa as a native species in most of Europe and locally in southwest Asia, are the most important tree species naturally disturbed in plain areas in North of Iran. Although the natural regeneration of Alnus glutinosa show good situation, unfortunately natural regeneration, distribution and elite trees of Populus caspica were diminished by different reasons. In this study, natural regeneration conditions of these species and their relationships with physical soil properties were carried out in two regions, with poor and good natural regeneration. Sampling have been done randomly in unequal linear transect. In each sampling plot, diameter of breast height for each tree and soil sample was taken. For all of soil samples, soil texture, Bulk density (B.D), Particle density (P.D), and water holding capacity (WHC) were analyzed. Differences of quantitative characteristics of trees and soil properties between two plantations were analyzed based on independent samples t-test, and correlation between variables were determined by Pearson correlation coefficient. Results of this study showed that there was strong relationship between establishments of natural regeneration of Populus caspica with soil physical properties. Natural regeneration of Alnus glutinosa did not show any relationship with soil physical properties. Natural regeneration of Populus caspica was established better in light soil texture with good aeration.

Palabras clave: Populus caspica natural regeneration soil properties North of Iran.

2018-10-25   |   91 visitas   |   Evalua este artículo 0 valoraciones

Vol. 5 Núm.1. Abril 2014 Pags. 137-142 Ecologia Balkanica 2014; 5(Special Edition)