... dispersion alone. The logs’ length might
already reflect a part of the timber quality, since the higher the
log quality, the longer it will be formed.
One may argue that the comparison of r
2
of the present
models ... econometric models to explain timber prices achieved for high quality beech
timber (Fagus sylvatica L. ). The modelling starts wit...
...
pest species is not the cause of damage at localities
not suitable for small mammals (for example due to
the lack of herbaceous cover) or at localities where
rodents can use alternative attractive ...
(H 200 2).
No relationship was found between the intensity
of threat to woody species by small mammals and
altitude of the locality (P > 0.0 5). Only in th...
... unit yields
of mixtures, and finally for yield indexes according
to the rules of error transmission summarized by
Š et al. (200 3).
RESULTS AND DISCUSSION
The annual unit yields of all tree ...
official forest value in Slovakia were elaborated by
T et al. (200 3).
e paper first presents the methodological prin-
ciples and the calculation concept of the prop...
... level of tree
canopy is registered with the use of a professional
tool for the patch.
e available light function describes the amount
of light available for specific tree leaves and is calcu-
lated ...
random and available light on the ground level. e
amount of new saplings is generated separately for
each type of light tolerance.
For the block of nutrients...
... was collected in the field during the inventory of the forests of the nature reserve Babia hora.
The data were used for the calculation of CWD timber volume. In the next step, CWD timber volume ...
volume of lying dead wood (logs) was calculated
as the volume of a second degree paraboloid using
Huber’s formula:
v = h × g
1/2
( 2)
Where:
v – volume of...
... volume of HCl consumed by air-dried soil controls
(ml),
V – volume of HCl consumed by soil samples with dif-
ferent moisture levels (ml),
C – concentration of hydrochloric acid standard solu-
tion ... solu-
tion (mol l
–1
),
M – weight of air-dried soil (20 g in this study) (g).
e soil accumulative C mineralization quantity
equalled the sum of soil released CO
2
-C (g·air-...
... xylem mother cell divides to form two
daughter cells, which in turn divide once, resulting
in the formation of a set of four cells, all of which
eventually mature into xylem cells. Phloem mother ... de-
crease in the formation of these cells leads to the
fact that the resulting number of cells is lower than
in old trees.
e curve of the total number of newly form...
... Ca/Al molar ratio in soil water
LH – under the humus horizon, L3 0 – at the depth of 30 cm
of mineral soil, L5 0 – at the depth of 50 cm of mineral soil (in
the European beech stand)
Ca/Al
current ... historically high air pollution load, mainly from the Třinec and Ostrava agglomeration. Air pol
-
lution significantly decreased in the second half of the 1990s. For...
... vascular
bundle and sclerenchyma
tissue
Area of the central part
of needle ( %)
Area of the central part of
needle/needle area ( %)
Resin duct area ( %)
Resin duct area/needle area
( %)
Table ... separately.
Needle length was analyzed using the Kruskal-Wallis
test as the nonparametric analysis of variance be-
cause of the violation of the assumptio...