Báo cáo lâm nghiệp: "Drought conditioning improves water status, stomatal conductance and survival of Eucalyptus globulus subsp bicostata seedlings" ppt
Báo cáo lâm nghiệp: "Drought conditioning improves water status, stomatal conductance and survival of Eucalyptus globulus subsp. bicostata seedlings" ppt
... 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. globulus [34]. After preconditioning
we detected ... 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...
Báo cáo lâm nghiệp: " Fungi associated with Tomicus piniperda in Poland and assessment of their virulence using Scots pine seedlings" doc
... Poland and assessment
of their virulence using Scots pine seedlings
Robert J
*
Agriculture University of Cracow, Department of Forest Pathology, Al. 29 Listopada 46, 31-425 Cracow, Poland
(Received ... trees (oftenin pine stands
growing near sawmills and wood yards). The new adults in
July emerge through the bark and attack new shoots on pine
trees of all ages. The beetl...
Báo cáo lâm nghiệp: "Integrating revenues from carbon sequestration into economic breeding objectives for Eucalyptus globulus pulpwood production" ppt
... for
2000−2003 and extrapolated to give estimates of the establishment
of new areas of E. globulus between 2004 and 2016. Only plantings
after 2004 were considered in calculations of carbon sequestration
and ... weight in Eucalyptus
globulus ssp. globulus in Portugal, For. Sci. 38 (1992) 80−94.
[6] Borralho N.M.G., Cotterill P.P., Kanowski P.J., Breeding objectives
for pu...
Báo cáo lâm nghiệp: "Changes in the mycorrhizal status of some mountain spruce forests" potx
... pH–H
2
O is based on measuring pH of soil
samples in water (five portions of water to one por-
tion of soil); after 5 minutes of agitating and subse-
quent standing for minimally two hours (not ... 4.1
pH
Density of active and nonactiveȱmycorrhizae
Fig. 6. Possible correlation between density of all (active and nonactive) mycorrhizae, and pH
in consequence of variable oc...
Báo cáo lâm nghiệp: "Rodent-caused damage to forest trees from the viewpoint of forestry practice" potx
... reforestation (% stands)
damage (% stands)
repeated reforestation (% stands)
damage (% stands)
repeated reforestation (% stands)
damage (% stands)
Fig. 1. Extent of damage by small mammals and repeated ... future of healthy forests in our
landscape (A, MN 1998).
e severity of damage to forests caused by small
mammals and the incompleteness of knowledge of
th...
Báo cáo lâm nghiệp: "Coarse woody debris carbon stocks in natural spruce forests of Babia hora" potx
... stage of maturity and de-
cay classes 2 and 8 (Figs. 3a and 3b). In the stage
of breakdown, large differences in the deadwood
volume in early and late decay stages become even
more profound ... dead standing trees and snags taller
than 1.3 m in height, their tree height and diameter
at breast height were assigned. In the case of lying
dead wood, its total length and di...
Báo cáo lâm nghiệp: "Harvest scheduling with spatial aggregation for two and three strip cut system under shelterwood management" docx
... “connectivity” of strips. For example,
(a) (b)
Fig. 1. e study area landscape with management units
(MUs) (a), and with strips (b)
Table 2. Example of allocation and cutting progress of two-cut ... Japan
2
Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague,
Prague, Czech Republic
3
Department of Mathematical Analysis and Statistical Inferen...
Báo cáo lâm nghiệp: "Preliminary study on phloemogenesis in Norway spruce: influence of age and selected environmental factors" ppsx
... type of relief, this is a part
of broken highlands of folded and faulted structures
and intrusive igneous rocks of Czech highlands. e
bedrock is intrusive igneous acid granodiorite of
the ... over 40% of its total area) cover-
ing mainly the highlands Drahanská and Konická
vrchovina as well as the Moravian Karst of Devo-
nian origin and a part of the Adamovská vrc...
Báo cáo lâm nghiệp: "Wedge prism as a tool for diameter and distance measurement" ppsx
... difference, s standard deviation of differ-
ences, n number of observations and t
n–1
(α) critical
value of Student’s distribution with n – 1 degrees of
freedom. Under assumption of the normal ... sum of log volumes gives the volume of
the stem. e form height is a ratio between the stem
volume and the diameter at breast height.
e method of measuring the diameter at a c...
Báo cáo lâm nghiệp: "Linking intra-tree-ring wood density variations and tracheid anatomical characteristics in Douglas fir (Pseudotsuga menziesii (Mirb.) Franco)" pot
... a stand that
reached a dominant height of 24 m for a mean DBH of 26.6 cm, with
a basal area of 63.3 m
2
/ha. Only very little pruning and thinning were
conducted on this stand.
For each of the ... set of simulations, all the variables of the
model altered, with exception of the variable of interest, which
was fixed to its initial value at the beginning of a ring (Fig. 3B)....
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