Research Concerning the Phenotypical Variability of Spruce Trees within Recovered Forestry Areas during 1995 - 2005, from Ghiurghiu Mountains

ProEnvironment Promediu

Vasile Valentin Năstăsescu¹ 

[1] USAMV-CN, IPM

关键词: spruce;    st;    s;    height;    diameter;    crown;    needle;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Bioflux SRL

【 摘 要 】

This study aimed to deliver solutions for the restoration of the anthropically and entropicaly affected spruce trees stands from the Ghiurghiu Mountains in the areas located the counties of Harghita and Mureşduring 2006 and 2011. There were identified and selected the experimental areas, anthropically and enthropically affected. Measurements were performed (from 10th to 16th years of age), GPS coordinates identified, and data were processed. Maps (1 : 20,000 scale) were performed and experimental variants were isolated by circular and rectangular 200 m2 areas.Significant differences were identified in development and restoring of the areas anthropically and enthropically affected (consistency, composition, acheivement of the natural fundamental type of forest) from the studied forests, administered by forest offices or not administered areas, whatever ownership form or property. Significant differences were also identified concerning the phenotipical variability of the reasearched traits (height, diameter, crown, lujeri, needles) in terms of provenience nd position on versant. From our analyzes resulted that in areas administered by forest offices it was proposed and promoted the natural fondamental type of forest. In not administered areas the forests, the fondamental type of forest could not be promoted and put into practice and duet o this reason, it is considered that those forest would became derivate forests with inferiour type of productivity.

【 授权许可】

CC BY