... view of practitioners in the beech plenter forest in
Thuringia [9, 12–15]. They all considered a standing volume
of about 250 m
3
/ha to be the upper limit to maintain the plenter
system in these ... much
higher in beech forests than in conifer-dominated ones. It also
explains why there has been little or no success in the past when
applying the principles...
... according to the following algorithm: from the begin-
ning of tree growth, we have in the law (4) for every GU, i.e.
the stem cannot react; during cycles of growth, if the leaning angle of
one ... direction of the
bearing element.
The secondary straightening up is induced by a differential of mat-
uration strains in the plane of flexion which is due to the pr...
... radiata pine plantations 613
identical for all the measurements belonging to the same unthinned
growth period within a single plot, hereafter the individual being in-
vestigated. During the fitting ... for Pinus pinaster stands in Galicia.
In summary, taking into account the adequate graphs pro-
vided by model BA2 (Fig. 1) as well as the values of
the goodness -of- fit sta...
...
at
the
beginning
of
the
win-
ter.
Then,
it
estimates
the influence
of frost
on
the
survival
of
the
pathogen
present
in
those
lesions.
For
this,
the
model
estimates
the ...
during
winter
and
recolonisation
of
the
lower
trunk
during
the
growing
sea-
son.
During
the
period
1985-1987,
the
model
predicted
a
lower
survival
of
P
cin-...
...
growing
evidence
about
the
influence
of
water
deficits
on
the
develop-
ment
of
insect
or
pathogen
problems
that
eventually
result
in
a
general
decline
of
these
forests.
Therefore, ...
leaves
were
generally
inclined
towards
the
ground,
whereas
in
the
coppice
they
were
pointing
upwards.
The
information
about
canopy
structure
and
the
response...
... (without the ending and often extended
hairs), metatarsal length (LTp) from the calcaneal
joint to the tip of the hoof, ear length (LA) from the
root of the ear to the tip, and height at the withers ... suggest the opinion, that in Doupov
region can absent the dominate female. But on the
other side, many of sudies describe the absence of
adult male as m...
... height of insert point of the highest branch and the height
of insert point of the branch of interest).
In every annual shoot of the stem, the branches were ordered from
the top to the base according ... calculate the insert height of the branches
to the pith level. hr is the calculated insert position of the branches to
the pith level: hm is the...
... any of the soil chemical properties in-
vestigated in the organic layer or the mineral soil (Tabs. IV
and V). The accumulation of N in the organic layer was highly
dependent on Al
ex
in the mineral ... saturation in the mineral soil are key factors for the
accumulation of C and N in the organic layer.
The total pool of phosphorus was particularly large...
... slow increase from the beginning
of the 20th century. Between 1910 and 2001, ring-width has
increased of about 50%. The growth pattern of the sampled
trees was in agreement with the stand growing ... variability of the estimates. The subsampling is done
by random extraction with replacement from the initial data set. The
size of each subsample is the same as th...
...
demonstrated
that
flooding
greatly
increased
the
production
of
1-amino-cyclopropane-1-carboxylic
acid
(ACC)
in
the
roots
and
ethylene
in
the
shoots
of
Pinus
halepensis.
In
a
recent
experiment ...
question
of
improper
timing,
since
treating
Norway
spruce
with
ethrel
alone
doubled
the
number
of
female
cones
(Remrod,
1976).
Timing
of
flower
in...