| Abstrakt: |
Among the Picea genus species, Picea pungens is the best known of the exotic species belonging to this genus and also the most popular species spread in the landscape of our country. Despite this, there are no more researches or bibliographic references in the specialized literature considering this specie's growth and development in Romanian climatic conditions or out. There are some researches, not much, from specialized literature which regards some aspects of behavior and dimensions of this species in Romania, but the data concerning the dimensions and behavior of this species abroad is very poor. This paper aims to bring more details on these items recorded out of Romania, and this research aim to be more interesting considering that these details came from the specie's origin places. Considering that, this paper present some observation and measurements made in the summer of 2012 in the Rocky Mountain forests, Rocky Mountain National Park-Colorado and on route between Boulder, Vail and Aspen-Colorado. In these places Colorado blue spruce can form pure forest or can be found in mixture with white fir, aspen tree, poplar tree and pine trees. There were measured biometrie elements, as stem's diameter, crown's, tree's high and high without branches. The data obtained was compared with data obtained from Romanian trees belonging to this species. [ABSTRACT FROM AUTHOR] |
