Plant composition and nutritional dynamic balance in five representative forest ecosystems of the Curvature Carpathians
2003
Bolea V. ,Ciobanu D. , Pana A.M.
Studies of nutritional and plant composition dynamic balance have been carried out between 1993 and 2002 in five representative forest ecosystems of the Curvature Carpathians. The nutritional dynamic balance was optimum in 1993-1999 in the European beech ecosystems of Warte, Sinaia, Fundata and inadequate in silver fir mixed with Norway spruce + European beech ecosystems of Predeal and Brasov. In these forest ecosystems the proportion of potassium was under the low European level. The dynamic of flora composition has indicated a soil acidification in all the Curvature Carpathians forest ecosystems and a decrease of the soil humidity, an incipient soil impoverishment in Sinaia and Poiana Brasov, an increasing in nitrogen in Fundata-Rucar, Poiana Brasov and Predeal. Keywords: nutritional dynamic balance, plant composition, European beech, silver fir, Norway spruce.
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