Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. X
Written by Cristinel CONSTANDACHE, Ciprian TUDOR, Radu VLAD, Lucian DINCĂ, Laurenţiu POPOVICI
The surface of degraded agricultural lands continues to increase under the influence of climatic changes. Pines have been the most frequent forest species used for afforestation in the past (period 1950-1990). The present paper presents data regarding the current state, biometric and auxologic characteristics of pine stands which emphasize the bioproductive and ecologic potential. The productivity and production were analyzed in the pine stands formed by main species such as European black pine and Scots pine, pure or mixed. The wood production (m3ha-1) recorded in pine stands is different, being based on the degradation form, phytoclimatic layer and age. As such, the volume of stands with European black pine varies between 258.89 and 512.66 m3ha-1, while for the stands with Scots pine, the values varies between 206.75 and 418.04 m3ha-1. For both species, it was obtained an semnificative correlation coefficient (R2 > 0.8) between diameter class (D) and unit volume (v). In the forest steppe of hill (Ss), on strongly fragmented landslides, the European black pine has proved better growth than Scots pine. In the hill zone (FD3), similar growth conditions for both species were obtained.
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