... of this study was to compare the impact of six tree species on vegetation and soil. Eighty stands growing side by side,
and of different dominant species, were selected in 26 locations. Within ... studies have
examined the impact of tree species on the composition of
* Corresponding author: laugusto@bordeaux.inra.fr
Effects of tree species on vegetati...
... resulted in the gradient
of light environments that are characteristic of understory conditions
in gap, moderate, and dense vegetation cover in mature oak forests.
2.2. Data collection
Light ... have
revealed a lack of understanding of ecological and physiolog-
ical processes involved in oak regeneration.
Light is a critical factor affecting early survival and gr...
... Lippu
P. Puttonen
Department
of
Silviculture,
University
of
Helsinki,
Unioninkatu
40
B,
00170
Helsinki,
Finland
Introduction
Low
soil
temperature
is
one
of
the
envi-
ronmental
factors ...
errors
in
A,
E
and
g.
Effects
of
soil
temperature
on
gas
exchange
and
mor-
phological
structure
of
shoot
and
root
in
1
yr
old
Scots
pine
(Pinus
sylve...
... Effects
of
water
deficit
on
leaf
growth
and
initiation
in
fast-growing
tree
species
J.C.
Metcalfe
W.J.
Davies
1
J.S.
Pereira
2
1
Institute
of
Environmental
and
Biological ...
initiation
is
important
and,
as
demon-
strated
in
Fig.
3,
the
initiation
of
new
leaves
at
the
apex
of
the
dominant
shoot
is
restricted
with
developing
water
stre...
... yield indicators of indi-
vidual tree species confirmed that under favourable
soil conditions, maple and ash as moderately shade-
tolerant admixed species are able to maintain their
position in ... dominate in the lower and intermedi-
ate layers, has a correlation index of R = 0.64, which
is understandable concerning the behaviour of the
virgin forest at this stage.
Tr...
... damage of N. dombeyi branching
systems
In N. dombeyi trees, like in many other tree species, the
branching system consisting of a parent shoot extended in one
year and a cohort of offspring shoots ... branches at the
beginning of their extension would exert only a minor effect
on the size gradients of branches on a common parent shoot,
in contrast with the results...
... old). In great fires recorded
in SE Spain, a decrease in the effects of interspecific competi-
tion by partial elimination of Cistus monspeliensis L. individ-
uals increased survival and growth of ... potential [42]
and competition effects on germination of therophytes described
by Pausas et al. [32].
As a conclusion to this study, in spite of the intense modifi-
c...
...
the
effects
of
phosphorus
deficiency
on
carbon
assimila-
tion
in
forest
tree
species
(Ericsson
and
In-
gestad,
1988).
In
Australia,
P
fertilization
of
Pinus
radiata
increased ...
discussed.
MATERIALS
AND
METHODS
Plant
material
and
growth
conditions
Seeds
of
maritime
pine
(P pinaster)
(INRA-CE-
MAGREF)
were
germinated
on
natural
peat
for
1...
...
reports
on
the
direct
effects
of
seedling
density
on
growth
in
the
absence
of
confounding
effects
of
cell
volume.
Comparisons
of
seedling
growth
in
different
sized
containers ...
Specification
of
seedling
size
in
terms
of
shoot
height
alone
is
not
a
good
measure
of
seedling
size
since
height
growth
of
container
seedlings
grown
at...
...
of
the
stress
application.
Effects
of
saline
stress
on
germination
The
application
of
saline
stress
led
to
a
reduced
germination
rate.
E.
alba
was
the
most
sensitive
species; ...
of
free
amino
acids,
but
its
content
in
leaves
was
quite
variable
depending
upon
the
proven-
ance.
Conclusion
Saline
stress
reduced
growth
of
plants
and
induced...