...
former
one
alone
to
describe
annual
wood
increment.
Short
note
Influence
of
repeated
defoliations
by
insects
on
wood
increment
in
common
oak
(Quercus
robur L)
VV
Rubtsov
Institute ...
effects
of
insect
defoliations
on
stem
wood
increment
have
been
studied
by
many
investigators.
Results
and
techniques
used
can
be
found
for
commo...
... detailed study of mechanical behav-
iour of green wood is prevailing to determine peeling and
machining ability [10]. In particular, influence of temperature
has to be taken into consideration [1, 8].
Veneer ... test
To go further in the investigations, we studied the influence
of species on one criterion: E
R
measured from compression
tests. Figure 9 presents the evoluti...
... with low
increments were also confirmed by the analysis of
negative pointer years (Table 3). In the following
period there is an increase in increments, with slight
interruptions in 1996 and ... 1. Synchronization of average tree-
ring curves of individual stands
Table 2. Synchronization of average tree-ring curves of individual stands
Compared curves
T-test
Synchroniza...
... and non-stressed conditions. In: JACOBY
G.C., HORNBECK J.W. (eds.), Proceedings of the Inter-
national Symposium on Ecological Aspects of Tree-Ring
Analysis. Springfield, National Technical Information ... ese inconsistent results obtained for
individual coniferous species can be also caused by
differences in cultivation design and also in fumiga-
tion duration.
Presented val...
...
during the conversion of blue spruce stands even
under environmentally highly stressing conditions,
(2) to assess the foliar nutrient status of the alder as
a precondition of positive in uence ... mountains, 6
th
forest altitudinal
(vegetation) zone, were planted in three subplots
(replications). In spring 2002, half of the living trees
in each replication were treated w...
... plantation response as liming.
e increasing concentrations of foliar S and N
might indicate a persisting air-pollution load on the
site, which is in agreement with the outcomes of a
long-term monitoring ... comparisons.
Trends in the nutrition of plantations were evaluated
using the linear-regression lines smoothing the mac-
roelement concentrations recorded within a variant...
... alone often do not explain the ecological per-
formance of a species in different environments [12, 19].
Indeed, species partitioning among different light environ-
ments is often the result of ... analyzed
using non-linear functions of Table Curve 2d software (SPSS Inc.);
the coefficient of determination (r
2
), the statistical significance of the
regression (P) and the 95% confi...
... was monitored continuously
throughout the growing season using the heat dissipation method
according to Granier [4, 5]. Heating of the upper probe was carried
out along a 20 mm long winding in ... shown
in Figure 2E. In contrast, rainfall during the remaining period
of study was more evenly distributed. The seasonal trend in θ
day
at 0.25 m depth can be explained by the differen...
... partitioning was impaired by
flooding especially in leaves. Further experiments will be help-
ful to clarify (i) the role of ammonium assimilation pathway in
maintaining amino acid content in root ... involve-
ment of cytokinin in bud break initiation of Quercus rubra
seedlings. Initiation of new roots in stressed seedlings began
26 days after flooding exposure, length and...