Báo cáo lâm nghiệp: "Stand structure, competition and growth of Scots pine (Pinus sylvestris L ) in a Mediterranean mountainous environment" pptx
Báo cáo lâm nghiệp: "Stand structure, competition and growth of Scots pine (Pinus sylvestris L.) in a Mediterranean mountainous environment" pptx
... 826 A. Garc a- Abril et al.
Table I. Stand area, climatic, topographic and soil type data of the four Scots pine stands studied.
Stand Stand area (ha) P (mm) PDP (mm) DD (months) Slope ( %) Soil ... diameter and basal area growth of Scots pine in the
uneven-aged stand than in the even-aged stand and the plan-
tation. Additional research using this kind of approac...
Báo cáo lâm nghiệp: " Feeding ecology of pine shoot beetles (Tomicus spp.) in tree crowns of Scots pine (Pinus sylvestris L.) stands under one-year outbreak" pptx
... shoots
damaged by adult feeding fell on experimental plots.
e mean shoot fall in individual years indicated a
high intensity of beetle feeding in pine crowns in
2002 in the marginal part of the ... resistance in defoliated pine: effects of single
and mass inoculations using bark beetle-associated blue-stain
fungi. Agricultural and Forest Entomology, 3: 211–216....
Báo cáo khoa học: "Density and population structure of the natural regeneration of Scots pine (Pinus sylvestris L.) in the High Ebro Basin (Northern Spain)" ppt
... was strongly correlated with the
cover (0.8 8) and mean height (0.8 6) of plants of the
Ericaceae group (Daboecia cantabrica, Erica cinerea,
Erica vagans and Calluna vulgaris) and Principal
Component ... stands older than 10 years. The climate shows
both Atlantic and Mediterranean influences, with an
annual average rainfall of 787 mm (123 mm in summer)
and an average...
Báo cáo khoa học: Flavonol 3-O-glycoside hydroxycinnamoyltransferases from Scots pine (Pinus sylvestris L.) docx
... 6.8 and 8.5, and at 36 and 50 °C. For 6¢¢HCT,
half maximal values were at pH 6.5 and 9.2, and at 36
and 52 °C. Maximal activity for 3¢¢HCT was at pH 7
and 40 °C and half maximal values were at ... p-coumaroyl-
CoA as substrates. The enzyme assay was analogous to the
standard enzyme assay, but was upgraded to a volume of
2.0 mL, and an incubation time of 100 min. A to...
Báo cáo lâm nghiệp: "Divergence among species and populations of Mediterranean pines in biomass allocation of seedlings grown under two watering regimes" pps
... their higher
leaf biomass. The fact that, according to this analysis, all
populations of Pinus pinea displayed similar and high levels
of allocational plasticity (even when their climatic conditions
differ ... ecology.
Until present, little information was available on the mor-
phological changes induced by water stress during the initial
developmental stages of Mediterranean pines...
Báo cáo lâm nghiệp:"Individual-tree growth and mortality models for Scots pine (Pinus sylvestris L.) in north-east Spain" docx
... increment
A diameter growth model was prepared using tree-level (diameter
and basal area of larger trees) and stand-level (site, basal area and
age) characteristics and their transformations as predictors. ... 2002068
Original article
Individual-tree growth and mortality models for Scots pine
(Pinus sylvestris L. ) in north-east Spain
Marc Palahí
a
*, Timo...
Báo cáo lâm nghiệp:"The d13C of Scots pine (Pinus sylvestris L.) needles: spatial and temporal variations" pps
... ring-width in
abaxial than adaxial wood.
From each section three one cm-long subsamples were cut at
regular intervals, divided into abaxial and adaxial halves and the
annual growth rings (figure 1b). ...
d
13
C of adaxial and abaxial
needles. The slightly upwards-sloping habit of pine branches,
combined in Scotland with a low angle of incident radiation,
making a cons...
Báo cáo lâm nghiệp: "Water relation characteristics and photosynthesis of saline-stressed seedlings of non-halophyte species" pot
...
all
sodium
and
chloride
are
sequestered
in
cells
and
generate
osmotic
potential.
O.
asiaticus
var.
auran-
tiacus
maintained
an
almost
constant
osmotic
potential,
but
increased ...
is
considered
that
salt
tolerance
depends
upon
an
ability
to
avoid
the
accumulation
of salts
in
leaves.
This
ability
seems
to
be
attained
mainily
by
sequestering
salt...
Báo cáo lâm nghiệp: "An economic aspect of conversion of Scots pine (Pinus sylvestris L.) stands in the Polish Lowland" docx
...
area of single-species pine stands was 92,800 ha and
that of mixed stands in which pine was a dominant
species – 37,700 ha (Table 1). e above data was
obtained from the Regional Directorate ... stand ages but in the case of imma-
ture stands, their full production potentials can be
wasted. On the other hand, stands well-adapted to a
given site are usually more sta...
Báo cáo lâm nghiệp: "Ground based operation effects on soil disturbance by steel tracked skidder in a steep slope of forest" ppt
... plastic, and then labelled sam-
ples were brought to a laboratory from the research
area. The samples of litter mass were taken from
0.5 m
2
area by collecting all the litter mass in that
area. ... h.
Data analysis was completed by SPSS statistical
software (version: 1 2). Treatment effects were tested
using analyses of variance (ANOVA) with slope
classes and traffic levels....