DIGITALNA ARHIVA ŠUMARSKOG LISTA
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ŠUMARSKI LIST 3-4/2004 str. 28     <-- 28 -->        PDF

V. Krcjči. T. Duhravac: PROBLEMI OBNOVE SUMA HRASTA LUŽNJAKA (Quercus robur L.) ... Šumarski lis! br. 3-4. CXXVII1 (2004). 119-126
Seed cuttings were performed on three occasions (1996/1997, 1999/2000
and 2002). After the cuttings, the condition of the soil cover, by horizontal
crown projections (shown in Fig. 1), positively influenced the development of
the Peduncled oak young growth.


Table 2 shows that in 1996, 96 % of the Peduncled oak young growth was
in the developmental stage of ´younger´young growth. During 1996, 1997
and 1998, the highest percentage decrease in the number of Peduncled oak
young growth was recorded, which occurred due to the soil cover effect by
Carex brizoides and bites by voles in the root collar zone. During the 2003
measurements, records were taken of 32,778 young Peduncled oak trees, of
around 10 years of age, in the developmental stage of ´older´ young growth ",
which showed a five-fold decrease compared to the initial situation of
149,694 young oak trees in 1996.


The situation in the development of shrubs is shown in Table 3, which indicates
that during the eight years a five-fold increase occurred. However, this
should not be disturbing in view of the powerful height increment in the


´older ´young growth and young growth of Peduncled oak. In the course of


this investigation the deer game effect on the development of Peduncled oak
young growth appeared to be negligible.


It can be concluded that the marked acidity of the A horizon soil did not
affect the appearance of young growth, and that during seed cuttings the area
of young growth, as soon as seedlings and young growth appear, should be
tended and protected. Following the appearance of young growth in the
structurally preserved stands, the period of young growth, with timely seed
cuttings, should not be longer than 10 years.


Key words: Peduncled oak, young growth, reforestation, soil, Carex
brizoides, shrubs, voles, deer game