Báo cáo lâm nghiệp: "Differences in fine root traits between Norway spruce (Picea abies [L ] Karst ) and European beech (Fagus sylvatica L ) " potx
![Báo cáo lâm nghiệp: "Differences in fine root traits between Norway spruce (Picea abies [L.] Karst.) and European beech (Fagus sylvatica L.) " potx](https://media.store123doc.com/images/document/2014_08/07/medium_sbm1407381725.jpg)
Báo cáo lâm nghiệp: "Differences in fine root traits between Norway spruce (Picea abies [L.] Karst.) and European beech (Fagus sylvatica L.) " potx
... 557
environmental conditions. In fact, only a few studies
have been conducted on this problem, for instance
comparing Norway spruce (Picea abies [L. ] Karst. )
and European beech (Fagus sylvatica L. ; S ... situations and, consequently, also differences in
the resistance of particular tree species to changing
Differences in fine root traits...
![Báo cáo lâm nghiệp: "Merocoenoses of cambioxylophagous insect fauna of Norway spruce (Picea abies [L.] Karst.) with focus on bark beetles (Coleoptera: Scolytidae) and types of tree damage in different gradation conditions" ppsx](https://media.store123doc.com/images/document/2014_08/07/medium_eml1407381692.jpg)
Báo cáo lâm nghiệp: "Merocoenoses of cambioxylophagous insect fauna of Norway spruce (Picea abies [L.] Karst.) with focus on bark beetles (Coleoptera: Scolytidae) and types of tree damage in different gradation conditions" ppsx
... beetle
species preferring dominant and co-dominant trees
to subordinate ones (P. chalcographus, I. amitinus),
and also species attacking particularly dominant
trees (Hylurgops palliatus /Gyll. /), ... H. palliatus (39.3 %) and the long-horned
beetle I. fuscum (25.7 %), were also relatively fre-
quent (Table 2). Interestingly, lower tree attack was
documented in X. lineat...
Báo cáo lâm nghiệp:" Effects of competing vegetation on juvenile white spruce (Picea glauca (Moench) Voss) growth in Alaska" pdf
... (Rosa
acicularis Lindl .), Labrador tea (Ledum spp .), willow (Salix spp .),
birch, fireweed (Epilobium angustifolium L .), horsetail (Equisetum
spp .), low shrubs (Empetrum nigrum L. , Linnaea borealis L. , ... tenth-year height and
diameter are listed in Table VIII.
Saplings at the Firewood unit were significantly taller and
larger in diameter than saplings at Davis...
Báo cáo lâm nghiệp: "Can 13C stable isotope record of Norway spruce tree rings display the effect of environmental conditions" pot
... measuring isotopes in cellulose
because only the cell-wall component contains non-
mobile organic elements. But L et al. (200 3)
and E et al. (200 5) suggested that the climate
signal in ... covered with 90 to
150 years-old Norway spruce (Picea abies [L. ] Karst. )
forest of at least secondary origin, with scarce Euro-
pean beech (Fagus...
Báo cáo lâm nghiệp: "Comparaison par simulation de 3 types d’unités d’échantillonnage en futaies feuillues de hêtre (Fagus silvatica L.)" pps
...
par
l lnstitut
pour
l Encouragement
de
la
Recherche
Scientifique
dans
l Industrie
et
l Agriculture
(LR.S.I.A .).
Afin
de
simuler
le
nombre
de
tiges
(nr)
réellement
incluses ...
néanmoins
observés
pour
les
unités
de
tailles
élevées
et
plus
spécialement
celles
à
surfaces
définies.
Comme
il
fallait
s’y
attendre,
la
méthode
Bitterlich
donne
lieu
au...
Báo cáo lâm nghiệp: "he extent of root rot damage in Norway spruce stands established on fertile sites of former agricultural land" pot
... problems concerning
particularly the stability of some tree species. Most
conifers and especially Norway spruce (Picea abies
[L. ] Karst. ) are endangered on former agricultural
land by primary ...
Trichoderma and Penicillinum species in agricultural
e extent of root rot damage in Norway spruce stands
established on fertile sites of former agricultu...
Báo cáo lâm nghiệp: "Plasticity in growth, biomass allocation and root morphology in beech seedlings as induced by irradiance and herbaceous competition" pptx
... less-ramified roots (i.e., high aver-
age diameter, low SRL and low internode length). In the
younger stands (LL, ML – V and HL) shading clearly resulted
in an increase in SLA, paralleled by a decrease in ... (LL, ML – V and FL – V), increasing light enhanced
allocation to coarse- and fine- roots at the expense of the taproot,
while allocation within aerial parts varied insig...
Báo cáo lâm nghiệp: "Changes in the mycorrhizal status of some mountain spruce forests" potx
... found in
20 main root sections (< 1 mm in diameter) of 5 cm
in length including their side branches. e level
of mycorrhizal infection was evaluated using two
parameters: density and percentage ... 200 6) was statisti-
cally proven in spruce mycorrhizae only in the total
number of mycorrhizae (active and nonactive) in
the sampling in spring 2004–2006. It was t...
![Báo cáo lâm nghiệp: "Variability in density of spruce (Picea abies [L.] Karst.) wood with the presence of reaction wood" potx](https://media.store123doc.com/images/document/2014_08/07/medium_wdi1407356554.jpg)
Báo cáo lâm nghiệp: "Variability in density of spruce (Picea abies [L.] Karst.) wood with the presence of reaction wood" potx
... the
tree in the stand) operate simultaneously, in uenc-
ing the character and the organization of individual
anatomical elements, including varying wood den-
sity (T 193 9). Spruce ... (CW/CW; only the samples containing at least
25% of compression wood were included in the
calculation) is considerably higher and its value is
549 kg/m
3
.
Statistical comparison o...
Báo cáo lâm nghiệp: "Multifunctional forestry practices as a land use strategy to meet increasing private and public demands in modern societies" ppt
... perspective (permanent
and continuing), the kinds of activities (maintaining
and creating), the objectives (needs and goals), and
the qualifying criteria (optimal fulfilment).
Management practices ... profoundly in uenced by timber use and forest management. eir social and political significance
is in full evolution. e multiple demands on forests in a rapidly evolving econo...
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