The dependence of plant mass and productivity on the age of stands in oak forests of the Eastern Carpathians
On the basis of data on structure and productivity of oak (Quercus robur L.) forests of different age (33, 54, 75, 106 year) in the Eastern Carpathians, plant mass fluctuation in the range of 120.5 - 239.8 t . ha-1 (absolute dry weight) were studied Mass of stems and roots changed in the range of 66.9 - 146.5 and 27.9 - 45.4 t. ha-1 respectively. The relationship between the mass of leaves to mass of thin roots for the studied plots was 3.5 – 4.0. The total aboveground plant mass surface was 104-164 thousand m2 . ha-1.
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