Báo cáo lâm nghiệp: "Sapwood hydraulic recovery following thinning in lodgepole pine" docx
Báo cáo lâm nghiệp: "Sapwood hydraulic recovery following thinning in lodgepole pine" docx
... LAI following
thinning can reduce demand for water resulting in increased
water availability in the rooting zone [24]. McDowell et al.
(in review) have also shown that decadal thinning to main-
tain ... following thinning in June, but by mid August maintained higher Q
l
and canopy stomatal
conductance than both 5T and C trees. Allocation to radial growth following thinnin...
Báo cáo lâm nghiệp: "Modelling juvenile-mature wood transition in Scots pine (Pinus sylvestris L.) using nonlinear mixed-effects models" ppsx
... (2004) 831–841
© INRA, EDP Sciences, 2005
DOI: 10.1051/forest:2004084
Original article
Modelling juvenile-mature wood transition in Scots pine
(Pinus sylvestris L.) using nonlinear mixed-effects ... the transition point x
0
= β
1
/(2 β
2
). In the following the
concept of “confidence interval” is not quite understood in its
classical sense as standard error of parameters, but in th...
Báo cáo lâm nghiệp: "Saturated hydraulic conductance of forest soils affected by track harvesters" ppsx
... min 12 s from the
beginning of measurement. e analysis of uniform
metal cylinders began by weighing in the original
state, in the water-saturated state after 24 h, in the
state after saturation ... horizons, beginning with the or-
ganomineral horizon, where the most significant
impact of machinery traffic is expected. e plots
were divided by harvesting into areas with ongo-
ing ope...
Báo cáo lâm nghiệp: "Modeling lumber recovery in relation to selected tree characteristics in jack pine using sawing simulator Optitek" ppsx
... INRA, EDP Sciences, 2005
DOI: 10.1051/forest:2005013
Original article
Modeling lumber recovery in relation to selected tree characteristics
in jack pine using sawing simulator Optitek
Shu-Yin ... determining lumber recovery in sawmilling,
General Technical Report FPL-39, Forest Products Laboratory,
Madison, Wisconsin, 1984.
[19] Wagner F.G., Taylor F.W., Lower lumber recovery at s...
Báo cáo lâm nghiệp: "The use of silica sand in micropropagation of woods" pot
... Breeding Station of the Forestry
Research Institute in Kostelec nad Černými lesy.
Low pH and high levels of phytohormones can bear
interesting results by cultures in vitro, especially in
somatic ... and pH 4.5.
RESULTS
Comparing cultures in sand and in agar
After the completion of cultivation, it was de-
termined that when using sand, the starting pH of
5.8 remained essentially...
Báo cáo lâm nghiệp: "The root-plant ratio changes in the first growing periods of wild cherry (Prunus avium L.) plantations" pptx
...
explaining 92% of the relationship.
An adequate proportion of fine roots (thinner
than 2 mm) in the root system is another important
parameter of planting stock and thus the changes
in the ...
that the pine plants given different treatments in
the nursery differed in size at planting out, but they
had similar heights and root system after 3 years in
the forest. This indicates...
Báo cáo lâm nghiệp: "About the benefits of poststratification in forest inventories" potx
... known as a means of
increasing the precision of estimates in unstratified
sampling by incorporating additional information
about strata weights in the final estimator. In gen-
eral, stratification ... systematic
sampling than for random sampling. In that case
reweighting by poststratification must have a similar
effect for both sampling techniques.
In order to analyze the in uenc...
Báo cáo lâm nghiệp: "An economic aspect of conversion of Scots pine (Pinus sylvestris L.) stands in the Polish Lowland" docx
... information concerning 108,000 stands
taking up the area of over 344,500 ha, of which the
area of single-species pine stands was 92,800 ha and
that of mixed stands in which pine was a dominant ... similar stands during tending fellings. In
older stands, their assortment structure was deter-
mined individually for each stand. e combination
of the above-mentioned two types of informat...
Báo cáo lâm nghiệp: "Production and humus form development in forest stands established on agricultural lands – Kostelec nad Černými lesy region" potx
...
documented in pine and in the stand on the former
forest soil. In the mineral soil, the clearly higher Ca
content is analyzed in the birch stand and especially
in the arable soil.
In both stands ... establishing in the area of Český Rudolec (P-
, Š 2002), at the higher altitudes
of the Krušné hory Mts. (P et al. 2006),
possibly in combination with d...
Báo cáo lâm nghiệp: " Influence of stand density, thinning and elevated CO2 on stem wood density of spruce" pot
... times denser comparing to sparse
one) for both investigated years (i.e. before and after
thinning) . Considering spacing of subvariants, the
higher SWD values were observed in both E and
A subvariants ... the age of 10–12 years in autumn 1996.
Sampling procedure: In 2002, the first schematic
thinning (intensity of 27%) was carried out. After
the two years, the next one (intensity...
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