Báo cáo lâm nghiệp: "Coarse woody debris carbon stocks in natural spruce forests of Babia hora" potx
Báo cáo lâm nghiệp: "Coarse woody debris carbon stocks in natural spruce forests of Babia hora" potx
... volume of the log in m
3
,
h – length of the log in m,
g
1/2
– cross-sectional area at ½ length of the log in m
2
.
Total volume of coarse woody debris was given
as a sum of the volumes of standing ... 2010 (9): 397–405
Coarse woody debris carbon stocks in natural spruce
forests of Babia hora
K. M
1,2
, J. M
1,2
1
Department of Fo...
Báo cáo lâm nghiệp: "Rodent-caused damage to forest trees from the viewpoint of forestry practice" potx
... and the incompleteness of knowledge of
their ecology and feeding behaviour have lead us
to initiation of an extensive research focused on
monitoring the population dynamics of rodents in
forest ... methodology of dealing
with problematic situations. Most of the foresters are uninterested in small mammals and many have only very smat-
tering knowledge of the dangerousnes...
![Báo cáo lâm nghiệp: "Polyamines during somatic embryo development in Norway spruce (Picea abies [L.])" potx](https://media.store123doc.com/images/document/2014_08/07/medium_xmd1407381712.jpg)
Báo cáo lâm nghiệp: "Polyamines during somatic embryo development in Norway spruce (Picea abies [L.])" potx
... level of spermidine (M et al.
1999). A high level of putrescine was determined in
the pro-embryogenic tissue of Picea rubens, while
spermidine was predominant during the stages of
embryo ... respon-
sive hurst ecotype of Norway spruce.
Contents of free polyamines (putrescine, spermi-
dine, and spermine) were determined in different
developmental stages of Norway...
Báo cáo lâm nghiệp: " Fungi associated with Tomicus piniperda in Poland and assessment of their virulence using Scots pine seedlings" doc
... [26], inoculating the same fungal isolates in large
trees and seedlings, found that seedling inoculation could be
a reliable way of determining the virulence of bark beetle-
associated blue-stain ... mortality in Scots pine domi-
nated forests, where T. piniperda adults may feed on the stems
of young Scots pine seedlings. This study confirms the results
of earlier inoculation stud...
Báo cáo lâm nghiệp: " Nutritive stress and cytokinin status in Norway spruce seedlings (Picea abies L. Karst.)" ppsx
... contents in spruce needles. The results of this work are
in accordance with previous cytokinin measurements in declin-
ing spruce trees which also revealed higher levels of cytokinin
ribosides in combination ... reduction in the rate of metabolisation of
isopentenlyadenosine. We assume that the increased cytokinin
levels in shoots of stressed seedlings could in add...
Báo cáo lâm nghiệp: "Screening for efficient cold hardening in a breeding population of Salix using near infrared reflectance spectroscopy" pps
... to induce hardening (see below).
2.2. Hardening regimes
The timing of growth cessation, which marks the onset of cold hard-
ening [17], was determined using a set of three replicate plants of ... clones also indicated that the timing of onset and the inherent rate of hardening were independently inherited traits. None of the
clones exhibited the desirable late-and-rapidly harden...
Báo cáo lâm nghiệp: " Soil and tree water relations in mature oak stands of northern Germany differing in the degree of decline" pdf
...
spring.
In
spring,
the
upper
threshold
of
stagnant
moisture
was
in
a
soil
depth
of
70
to
90
cm
in
the
healthy
stand,
but
in
40
to
60
cm
depth
of
the
declin-
ing ...
for
the
declining
stand
(end
of
September).
At the
beginning
of
the
dry
period,
the
decrease
in
soil
matric
potentials
was
steeper
in
the
declining
stand
in
both
1...
Báo cáo lâm nghiệp: "Moisture effect on carbon and nitrogen mineralization in topsoil of Changbai Mountain, Northeast China" pptx
... D
1
1
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, P.R. China
2
Graduate University of Chinese Academy of Sciences, Beijing, P.R. China
ABSTRACT: Changbai Mountain Natural ... and model simulating of main species in
various forest vegetations of Changbai Mountains, China.
Acta Ecologica Sinica, 26: 1037–1046.
H S.C., P D.A. (1995): Transferri...
Báo cáo lâm nghiệp: "Integrating revenues from carbon sequestration into economic breeding objectives for Eucalyptus globulus pulpwood production" ppt
... ef-
ficient, supply an increasing range of products, and maintain
a high standard of sustainability. The guiding principles for
achieving these goals in the Australian context are set out in
documents ... varia-
tion in the price obtained for wood chips. Increasing the price
obtained for woodchips increased the correlated response by
decreasing the relative value of carbon revenu...
Báo cáo lâm nghiệp: "Biomass increment and carbon balance of ash (Fraxinus excelsior) trees in an experimental stand in northeastern France" docx
... the preceding growing season (1994) to the beginning
of the current one. In comparing the carbon balance to biomass
increment, we assumed that carbon uptake during the growing
Figure 6. Net assimilation ... evaluation of the carbon budget of trees was intention-
ally considered for a one-year period comprising the current
growing season (1995) and the period of time extending...
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