Báo cáo lâm nghiệp: "Analysis of snow accumulation and snow melting in a young mountain spruce and beech stand in the Orlické hory Mts , Czech Republic" pptx
... open area.
In the final stage of melting in the last decade of
April, the snow melting rate in spruce reached about
26 mm/day, in beech about 28 mm/day and in the
open area maximally 37 mm/day. ... Agricul-
ture of the Czech Republic, Research Plan No. 000207020 1, Project No. 1G 57016 and Project QH 92073.
Analysis of snow accumulation a...
...
and interval. Studied variables are classified by their
character as extensive and intensive, by the time
interval length as momentary and interval, by the
course of values as periodical and ... the one hand and due to increasing inputs on the other hand, last but not least
also due to the projections of near-natural forest management methods and increasing area u...
... of the Training Forest
Enterprise in Kostelec nad Černými lesy has a long
tradition and is mainly connected with Liechtenstein
estate. On the area of 6,7 34 ha, Douglas fir occurs in
98 stands ... SCI ., 5 6, 2010 (5): 209–217
present, Douglas fir grows in our forests on the area
of 4,8 08.5 ha, that is about 0.2% of forest land of the
Czech Republic....
... felling in the forest stands of Slovakia
in 198 0, 1996 and 2003. e data are arranged into
the sets according to age classes, groups of tree spe-
cies (coniferous, broadleaved) and forest categories ... data on the area, growing stock and planned decennial timber
felling in the forests of Slovakia in 198 0, 1996 and 2003. e production potential of fore...
... cases, one of the main findings is that
the variability of the spread amount of substance on
the particular stand area is considerably different
from the required amount, and in some cases it was ... 47–57
In recent years there has been an actual problem
with the health status of Norway spruce stands
in Slovakia. One of the numerous reasons for the
decli...
... performance standards guarantee
98% of the daily PDOP 6 and better, and functionality
of at least 21 satellites with 98% probability on the
annual average. In general, the relevant accuracy of
the ... points.
e resultant data were evaluated by the analysis
of variance (ANOVA) on the basis of several fac-
tors (stand characteristics, PDOP and measure-
ment ti...
... reconstruction of logs
using WoodCim
®
and reality in relation to the number of knots and
the Z coordinate of knot origin (height in the stem) as mean of
deviations (real-reconstructed, in mm) and standard ... (subspecies
pinaster) and in the Atlantic influenced regions of Portugal,
Spain and France (subspecies atlantica). In the last decades
this spec...
... acid
was also the main resin acid in wood [4] and oleoresin [5]
of P. pinea. Moreover, seco 1, seco 2, pimaric,
sandaracopimaric, isopimaric, the couple of levopimaric
+ palustric, dehydroabietic, ... On the other
hand, the diterpenes constituted more than 60% of the ex-
tract analyzed, and of these, the resin acids were the most
abundant fraction. Abietic ac...
... useful
information about the actual evapotranspiration, drainage, and
leaching [14]. Over the past decade, interest in water fluxes in
natural ecosystems has increased owing to the appearance of
evidence ... Aptdo. 25 7, Salamanca 3707 1, Spain
b
Centro Universitario, Universidad de Extremadura, Plasencia 1060 0, Cáceres, Spain
c
Área de Edafolog a, Universidad de Sal...
...
have
shown
strong
effects
of
ageing
and
rejuvenation
(Jay-Allemand
et
al .,
1988 ),
latent
contamination,
low
reac-
tivity
of
buds
or
meristems
on
the
esta-
blishment
of
mature ...
wider
adaptability.
Breeding
programs
are
in
progress
at
INRA
(Institut
National
de
la
Recherche
Agronomique,
Bordeaux
and
Orl6ans)
and
they
need
efficient
me...