...
note
Ecophysiological
factors
contributing
to
the
distributions
of
several
Quercus
species
in
the
intermountain
west
JR Ehleringer,
SL
Phillips
Department
of
Biology,
University
of
Utah, ...
examine
aspects
of
the
water
relations
of
these
three
oak
species
native
to
the
intermountain
west
and
of
their
hybrids
under
common
growth
en...
... the height of the tree at the end (H
2
) and at the be-
ginning (H
1
) of the five year period, as well as the difference
between the age at the end of the period (T
2
) and the age at the
beginning ... for the estimated age. The distribution of
the age of the dominant strata and the site index within the for-
est area can be seen in Figure 4. The...
... application of the treatments,
no difference in inter-row weed biomass was found between
the mowed plots (M) and the control (V) (Tab. I). The applica-
tion of herbicides in the beginning of the growing ... treatments practiced in
this study differed in their success in terms of controlling
the weeds. Two months after the application of the treat-
ments, t...
...
as
during
the
leaf
fall
period.
Coupling
of
transpiration
to
the
atmosphere
We
first
tested
the
sensitivity
of
the
model
to
ga
in
the
case
of
the
oak
stand
using
higher
for ...
and
model
were
observed
in
the
morning
and
in
the
evening,
probably
due
to
a
dehydration
in
the
morning
of
the
water
exchangeable
tissues
of
the...
...
I).
Interactions
were
due
to
a
change
in
magnitude
of
response,
rather
than
to
a
change
in
rank
of
the
treatment
combina-
tions.
Clone
x
treatment
interactions
for
staminate ...
year’s
growth
as
an
index
of
when
to
apply
GA4n
.
The
final
length
of
the
treated
branches
in
1984
was
75%
of
the
control
length
and
70&dquo;/
°
of...
... of the sprayed concentration,
regardless of the species. This suggests that the three pines have
the same ability to intercept sea aerosols.
In the past, concentrations of MBAS measured in the ... Mediterranean pinewoods
from the hazards presented by these pollutants.
As time passed after the sprayings, an increase of visible
injury was observed in all specie...
... among the indicators of soil disturbances. e
soil dysfunctions that are among the factors of forest
decline (M 2003) cause that symptoms of
decline appear both in natural and in managed ... Differences in the
properties of the particular sampling points and the
fact that the in uence of soil heterogeneity on the
specificity of forest stand cann...
... e intensity of
damage to individual tree species corresponds to
the need of repair planting in plantations that were
totally destroyed by rodents. In the case of beech it
was necessary to ... However, this opinion concerning the
significance of the individual species is in contradic-
tion with the information the foresters provided on
the distribution...
... factor.
The number of species and also individuals in
the SF guild was quite low. is guild tended to be
in uenced more by the poor quality of leaves and
the increasing accumulation of tannin ...
Because of a lack of information about the quality
of food and amount of tannin in leaves during our
study we cannot precisely estimate the impact of
these fa...
... e information on tree
biomass is required to assess the amount of carbon
held in trees, which in turn represents the basis
of the assessment of carbon stock held in forests.
is leads to the ... three parameters of the equation.
However, it is to note that in allometric studies the
nonlinear regression analysis is often avoided using
the logarithmic l...