Joint International Conference on Long-term Experiments ...

RESULTS
Following the results of the data from the site, a series of results were reached at, results
presented in the following lines. If the stational conditions are analysed – especially the
ecologic factors (Doniţă N., et. al., 1977) represented by precipitations and respectively
temperature, it can be noticed that they are premises for establishing the seedlings for
usage in favourable conditions – table 1.
Table 1: Monthly average temperatures and precipitations at Lugoj meteorological
station (*)
Month I II III IV V VI VII VIII IX X XI XII
0 1 2 3 4 5 6 7 8 9 10 11 12
T[°C] -1 1 5 12 17 20 22 22 18 13 6 2
Pp [mm] 40 40 50 60 80 80 60 60 50 60 50 50
Tma = 11[°C]
Pp = 600 [mm], where:
Tma – annual average temperature;
Pp – annual average precipitations;
Pp
I ar = , where: (1)
Tma
+ 10
Iar – de Martonne dryness index
600
I ar = = 28,
5 ≅ 29
11+
10
The value of de Martonne dryness index calculated with formula 1 suggests the fact that
the forest vegetation can be developed in favourable conditions. In this context it can be
noticed the growth dynamic of samples from cerris species (Q. cerris) developed from
seedlings in the forest stand from u.a. 11C, analysing the picture in figure 1.
In the oaks forest stand from U.P. II Valea Lungă non-uniform regeneration cuttings are
applied – progressive cuttings (in gaps), and as a result, the regeneration benefits from
the best bio ecological conditions if the treatment technique is strictly applied and it
adapts correctly to the state and structure of the working forest (Florescu I.I., Nicolescu
N. V., 1998).
During 1995 - 2004, in u.a. 3A, 4A and 11C from U.P. II Valea Lungă interventions in
non-uniform regeneration cuttings were applied – progressive cuttings (in gaps), and
were correlated to the fructification years at the main cvernicee species (Q. robur, Q.
cerris, Q. frainetto, Q. petraea, Stănescu V., et. al.,1997) .
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