Báo cáo lâm nghiệp: "Predicting the potential distribution of Sirex noctilio (Hymenoptera: Siricidae), a significant exotic pest of Pinus plantations" pot
Báo cáo lâm nghiệp: "Predicting the potential distribution of Sirex noctilio (Hymenoptera: Siricidae), a significant exotic pest of Pinus plantations" pot
... susceptible
hosts are located within the shaded area
(Jianghua Sun, 2004, unpublished data).
126 A. J. Carnegie et al.
There are large areas of forests of P. massoniana in the
south-east of China and of Larix ... 10.1051/forest:2005104
Original article
Predicting the potential distribution of Sirex noctilio
(Hymenoptera: Siricidae), a significant exotic p...
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 ... statistically satisfy both the activation and the
deactivation of a cell production process.
The two states of the cambium (active and inactive or dor-
mant) may al...
Báo cáo lâm nghiệp: "Predicting the vertical location of branches along Atlas cedar stem (Cedrus atlantica Manetti) in relation to annual shoot length" pdf
... Conversely, the branches are
the next place of transport and allocation of assimilates, just
after the leaves. Simulating the spatial distribution of branches
using architectural models provides detailed ... 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...
Báo cáo lâm nghiệp:"Predicting the probability of seed germination in Pinus sylvestris L. and four competitor shrub species after fire" doc
... fires are
the most important cause of damage to the natural environ-
ment in the Mediterranean basin [51]. Amongst the countries
of the Mediterranean basin, Spain is one of those with a rela-
tively ... can be considered as colonisers are Halimium
alyssoides and Halimium umbellatum. These species used germina-
tion as a regeneration mechanism and both of them take advant...
Báo cáo lâm nghiệp: "Assessing the potential of natural woody species regeneration for the conversion of Norway spruce plantations on alluvial soils" doc
... medians and quartiles (data did not fit nor-
mality). At this step of the analysis, only the sapling dataset was
included because the potential of seedlings is uncertain for forestry.
Plot data ... pseudoplatanus were
negatively correlated with the two distance measures (Tab. II)
on the whole. The distance to the nearest alluvial forest had a
greater explaining power tha...
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), ... this paper is to estimate
the long-term sustainable harvest rates and the stable diameter
distributions of uneven-aged managed beech (Fagus Sylvatica
L.) stands in Navarre...
Báo cáo lâm nghiệp: "Predicting solar radiation transmittance in the understory of even-aged coniferous stands in temperate forests" ppt
... range.
Figure 5a shows that models 2 and 3 sensitivity against b
max
values is maximal for age = age
max
at the same basal area. It
increases with increasing basal area, but with a lower rate ... by aver-
aging values measured by the two instruments. Stand solar radiation
transmittance T was calculated as the ratio of daily transmitted solar
irradiation to daily incident solar irr...
Báo cáo lâm nghiệp: "On the occurrence of web-spinning sawflies of the genus Cephalcia (Hymenoptera, Pamphiliidae) in the Czech Republic" potx
...
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. F.
2002 –0.4737 ... 1 and Table 3. e first canonical axis explains
38.8% of variability, both canonical axes explain 53%
of variability (Table 2). All axes explain 100% of vari-
ability. e wh...
Báo cáo lâm nghiệp: "About the benefits of poststratification in forest inventories" potx
...
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 among the ... on the irregularity of the particular shape of the
area. With poststratification there is an additional
variability of sample sizes within strata (V
1993).
A well-known...
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 ... fertilizer was
added at the beginning, P and K were added after
each harvest; short rotation areas were limed after
12 years. For conventional agriculture and ACS the
same crop rotat...
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