Báo cáo lâm nghiệp: "The influence of irradiation on the behaviour and reproduction success of eight toothed bark beetle Ips typographus (Coleoptera: Scolytidae)" doc
Báo cáo lâm nghiệp: "The influence of irradiation on the behaviour and reproduction success of eight toothed bark beetle Ips typographus (Coleoptera: Scolytidae)" doc
... of irradiation on the behaviour and
reproduction success of eight toothed bark beetle
Ips typographus
(Coleoptera: Scolytidae)
M. T
1
, J. V
2
1
Faculty of Forestry and Wood Sciences, ... Slovakia
ABSTRACT: Irradiation experiments on Ips typographus (L., 1758) with doses of 15 and 30 Gy (cobalt 60) were con-
ducted in 2006. e effect...
Báo cáo lâm nghiệp: "Mineral nutrition in relation to the Norway spruce forest decline in the region Horný Spiš (Northern Slovakia)" docx
...
Supported by Grant Agency of the Slovak Republic, Project No. 2/4159/04.
Mineral nutrition in relation to the Norway spruce forest
decline in the region Horný Spiš (Northern Slovakia)
Ľ. D
1
, ... (3): 93–100 97
lings from the forest nursery planted in the substrate
from the declining forest stand, 6 – spruce seedlings
from the nurs...
Báo cáo lâm nghiệp: "Ground based operation effects on soil disturbance by steel tracked skidder in a steep slope of forest" ppt
... precipitation rates, these machines
are likely to remain the most common type of skid-
ding machine used.
In mountainous and steep areas, the terrain slope
is an important factor that a ects operational ... costs and erosion. It may also a ect the soil
compaction, so in planning forest operations and
aligning skid trails the terrain slope may be an im-
portant consideratio...
Báo cáo lâm nghiệp: "Environmental risk assessment based on semi-quantitative analysis of forest management data" pptx
... 89–95 89
JOURNAL OF FOREST SCIENCE, 57, 2011 (3): 89–95
Environmental risk assessment based on semi-quantitative
analysis of forest management data
L. K
1
, R. M
2
1
Forest Research ... damage.
DISCUSSION
e developed regression models can be considered
as standalone complex models of environmental risk
prediction allowing the “chance and potency” ana...
Báo cáo lâm nghiệp: " Fungi associated with Tomicus piniperda in Poland and assessment of their virulence using Scots pine seedlings" doc
... 801
c
INRA, EDP Sciences, 2006
DOI: 10.1051/forest:2006063
Original article
Fungi associated with Tomicus piniperda in Poland and assessment
of their virulence using Scots pine seedlings
Robert ... col-
onizer of pine tree stems. Tomicus piniperda, together with its
cogener T. minor (Hrtg.), ranks among the main insect pests
of Scots pine in P...
Báo cáo lâm nghiệp: "Drought conditioning improves water status, stomatal conductance and survival of Eucalyptus globulus subsp. bicostata seedlings" ppt
... between survival and RWC 36-days after
transplanting in seedlings of E. globulus. subsp. bicostata Each point
represents the mean value of five observations of each treatment.
to plant survival and ... among prove-
nances of several Eucalyptus [25, 42], between and within
subspecies of E. globulus [15, 54], as well as among clones
of E. globulus subsp. globu...
Báo cáo lâm nghiệp: "Soil carbon dioxide efflux in pure and mixed stands of oak and beech" potx
... TSR in the oak, mixed and beech stands.
The annual heterotrophic respiration of the forest floor ac-
counted respectively for 68, 74 and 51% of the annual FFR in
the oak, mixed and beech stands ... 10.1051/forest:2006098
Original article
Soil carbon dioxide efflux in pure and mixed stands of oak and beech
Mathieu J
*
, Frộdộric A
, Franỗois J,Nicol...
Báo cáo lâm nghiệp: "Sucrose synthase expression pattern in the rhythmically growing shoot of common oak (Quercus robur L.)" pot
... (2005) 585591
â INRA, EDP Sciences, 2005
DOI: 10.1051/forest:2005051
Original article
Sucrose synthase expression pattern in the rhythmically
growing shoot of common oak (Quercus robur L.)
Rozenn ... incorporation of cDMO as a indicator of
organ sink strength in oak, that on the 2nd day, the apex is a
stronger sink than the other organs [4].
We also l...
Báo cáo lâm nghiệp:" Ring shake in chestnut: Anatomical description, extent and frequency of failures" pdf
... radially into a neighboring ring
and then further proceed into the earlywood tissue. This
“jumping” from ring to ring could also occur several times in
the same ring shake failure, giving the ... processing, and the often observed ring- to -ring jump-
ing pattern of shakes lets us presume that the set off mecha-
nism leading to this failure has to be related to stresses ac...
![Báo cáo lâm nghiệp:" Mid-winter ultrastructural changes in the vegetative embryonic shoot of Norway spruce [Picea abies (L.) Karst.]" pdf](https://media.store123doc.com/images/document/2014_08/08/medium_lkd1407435698.jpg)
Báo cáo lâm nghiệp:" Mid-winter ultrastructural changes in the vegetative embryonic shoot of Norway spruce [Picea abies (L.) Karst.]" pdf
... shoot
is still insufficient. The aim of this study was to determine
whether changes take place in the submicroscopic structure of
the distal part of an embryonic Norway spruce shoot during
winter dormancy ... (2003) 461466
â INRA, EDP Sciences, 2003
DOI: 10.1051/forest:2003039
Note
Mid-winter ultrastructural changes in the vegetative embryonic shoot...
Báo cáo lâm nghiệp: "Predicting solar radiation transmittance in the understory of even-aged coniferous stands in temperate forests" ppt
... characteristics, the time since last thin-
ning
τ
and the thinning intensity I were retained for this study. Thin-
ning intensity I is defined in terms of basal area, being equal to the
ratio of absolute ... since thinning increased (data not shown).
Thus the influences of stand age, time since last thinning and
intensity of last thinning on extinction coefficient b (relat...
Báo cáo lâm nghiệp: "Fertilization at planting impairs root system development and drought avoidance of Douglas-fir (Pseudotsuga menziesii) seedlings" pot
... article
Fertilization at planting impairs root system development and drought
avoidance of Douglas-fir (Pseudotsuga menziesii) seedlings
Douglass F. JACOBS
a,b
*, Robin ROSE
a
, Diane L. HAASE
a
, Patricio ... the poor root development of seedlings fer-
tilized at a relatively high rate in this study.
We expected increased root proliferation at or above...
Báo cáo lâm nghiệp: "Oak decline risk rating for the southeastern United States" ppt
...
forests
in
the
Appalachian
and
Ozark
Mountains
in
the
southeastern
United
States.
These
combi-
nations
of
landforms
and
ownership
class
are
dominated
by
mixed
hardwood
forests
with ...
subregions.
These
findings
led
to
an
hypothesis
that
oak
decline
risk
rating
systems
could
be
developed
from
standard
forest
inventory
data
for
predicting
the...
Báo cáo lâm nghiệp: "doubling atmospheric CO concentration on 2 matter distribution and CO exchange of 2 yr growth, dry 2 old sweet chestnut trees (Castanea sativa Mill.)" pptx
...
after
a
2
wk
adaptation
period
as
the
slope
of
C0
2
concentration
over
time
in
the
whole
chamber
(Gaudillere
and
Mousseau,
1989).
During
the
two
1 st
2
wk,
the
C0
2
concentration ...
where
environmental
conditions
were
controlled
(22 /15°C
day-night,
15
h
photoperiod,
50%
RH).
Whole
plant
photo-
synthesis
at
25 0
jlmol-m-
2
s-
1
PPFD...
Báo cáo lâm nghiệp: "Carbon partitioning: fructose 2,6-bisphosphate content as an indicator of specific changes in carbohydrate metabolism in needles from class II spruce trees" pot
...
be
indicative
of
increased
partitioning
of
carbon
into
sucrose
(starch
decreases)
and
this
situa-
tion
is
obviously
continued
during
summer.
Class
li -specific
changes
in
pool ...
based
on
dry
weight)
differ
significantly
in
the
levels
of
starch,
TP
and
F26BP,
in
that
class
II
needles
show
a
decrease
in
starch,
compared
to
in-
crease...
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