Báo cáo lâm nghiệp: " from the simple application of a mixture of to more gibberellins integrated explanations" pot
Báo cáo lâm nghiệp: " from the simple application of a mixture of to more gibberellins integrated explanations" pot
...
which
had
more
basic
ones.
A
similar
distribution
was
observed
in
tobacco
(Cabanne
et
al.,
1977).
These
biochemical
changes
of
early
stages
of
initiation
have
yet
to
be
verified
in ...
trees
makes
the
sampling
problem
for
biochemi-
cal
studies
on
the
early
steps
of
flowering
a
crucial
one.
Another
approach
to
this
problem
is
to
find
a...
Báo cáo lâm nghiệp: "Modelling the biomechanical behaviour of growing trees at the forest stand scale. Part I: Development of an Incremental Transfer Matrix Method and application to simplified tree structures" pptx
... software
AMAPpara and its biomechanical function AMAPméca. The com-
puted structure was taken as a reference in order to carry out a numer-
ical evaluation of the ITMM biomechanical model. The advantage ... vector due to maturation strains
At each cycle of growth, MS of the new cells cannot be released,
as the cells are attached to the older stiffened part of th...
Báo cáo lâm nghiệp: "On the occurrence of web-spinning sawflies of the genus Cephalcia (Hymenoptera, Pamphiliidae) in the Czech Republic" potx
... Systematic
Entomology, 23: 99–108.
Table 3. Results of the redundancy analysis of explanatory variables, their significance and correlations with the axes
Explanatory variable AX1 AX2 AX3 AX4 P F I. ... (Table 1).
Although samples from cultural forests prevailed
and C. abietis was the most abundant species in the
cultural forests at first appearance (Table 1), the
variable...
Báo cáo lâm nghiệp: "About the benefits of poststratification in forest inventories" potx
... 141
of that stratum in the population, the post stratified
estimator automatically corrects for any badly bal-
anced sample.
Variances and variance estimation
e unconditional variance of the ...
the variance estimators as well as the “true” variances
(7) and (8) calculated. All means and variances were
averaged over the k systematic or random samples.
Sample sizes n vary a...
Báo cáo lâm nghiệp: "Assessing the short rotation woody biomass production on marginal post-mining areas" doc
...
average annual precipitation amount of 560 mm
and mean annual temperature of 9.3°C (1951 to
2003). e substrate (mainly sands and loamy
sands) at the study site was dumped and amelio-
rated ... biomass yields of lucerne (Med-
icago sativa L.) at the study site of alley
cropping on the leeward and windward side
of the black locust (Robinia pseudoacaciaL.)
hedgerows...
Báo cáo lâm nghiệp: "Estimating the sustainable harvesting and the stable diameter distribution of European beech with projection matrix models" pdf
... shows a method to estimate the sustainable har-
vest rates and the stable diameter distributions of three qual-
ities of Fagus Sylvatica L. in the managed pure uneven-aged
stands of Navarre (Spain), ... en Navarra, Gobierno de Navarra, Dpto.
de Agricultura, Ganader a y Alimentación, Navarra, 1996.
[20] Madsen P., Larsen J.B., Natural regeneration of beech (Fagus syl-
vatica...
Báo cáo lâm nghiệp: "Predicting the vertical location of branches along Atlas cedar stem (Cedrus atlantica Manetti) in relation to annual shoot length" pdf
... particular, the great ex-
tent of the neoformed zone 3 in the annual shoots of the main
stem expresses the adaptive potential of Atlas cedar to vary-
ing environmental conditions and its ability to ... shoot of the stem, the branches were ordered from
the top to the base according to increasing dr.
2.1.4. Discretization
For the analysis of branching str...
Báo cáo lâm nghiệp: "Optimising the management of even-aged Pinus sylvestris L. stands in Galicia, north-western Spain" ppt
... needs
four initial state variables to begin the simulation. These variables are
stand age, dominant height, number of trees per hectare and stand
basal area. Stand age and dominant height define the site ... 0.5 to 5%. The method employed to find the optimal management
schedules of stands was the combination of a stand simulator and an optimisation algorithm. The simul...
Báo cáo lâm nghiệp: " Optimising the management of uneven-aged Pinus sylvestris L. and Pinus nigra Arn. mixed stands in Catalonia, north-east Spain" pps
... stands in Spain [28]. The site index used
was such that the mean annual timber production of the even-aged
stand nearby equalled the average growth rate of an uneven-aged stand
in Catalonia (about ... variables.
The step of changing the values of DVs was initially 10% of a user-
specified range, and the step was gradually decreased during the direct
search. The s...
Báo cáo lâm nghiệp: "Predicting the environmental thresholds for cambial and secondary vascular tissue development in stems of hybrid aspen" pptx
... autumn approached. These periodic variations
are the consequence of the balance maintained between the rate
of periclinal cambial cell divisions and the rate of differentia-
tion of the cells as ... [16], daily variations of temperature and illuminance, and also
the sinusoidal change of day-length throughout the year, can be used
to assess the contributions made...