Báo cáo lâm nghiệp: "Climatic signal in annual growth variation of silver fir (Abies alba Mill ) and spruce (Picea abies Karst ) from the French Permanent Plot Network (RENECOFOR)" ppsx
Báo cáo lâm nghiệp: "Climatic signal in annual growth variation of silver fir (Abies alba Mill.) and spruce (Picea abies Karst.) from the French Permanent Plot Network (RENECOFOR)" ppsx
... article
Climatic signal in annual growth variation of silver fir
(Abies alba Mill. ) and spruce (Picea abies Karst .) from
the French Permanent Plot Network (RENECOFOR)
François L
*
UMR INRA-ENGREF ... latewood and total ring-width chronologies of five Norway spruce (Picea
abies) and six silver fir (Abies a...
Báo cáo lâm nghiệp: "Climatic significance of tree-ring width and intra-annual density fluctuations in Pinus pinea from a dry" pdf
... false rings and
other intra -annual density fluctuations (IADFs). In this paper, ring growth and the presence of IADFs were studied in Pinus pinea L.growinginthe
coastal and inland regions of Alentejo ... chronologies of
Pinus pinea growing in the coastal and in the
inland area. The dot line represents the number
of cores used.
3.3. Intra -annual density fl...
Báo cáo lâm nghiệp: "Mineral nutrition in relation to the Norway spruce forest decline in the region Horný Spiš (Northern Slovakia)" docx
... ( 3): 93–100 97
lings from the forest nursery planted in the substrate
from the declining forest stand, 6 – spruce seedlings
from the nursery planted in the soil substrate from
the beech stand).
An ... yellowing and green seedlings were planted in
the soil from the decomposing stand and compared
with both yellowing and green seedlings planted in
t...
Báo cáo lâm nghiệp: "Species composition in low mountain beech (Fagus sylvatica L.) stands in the Bieszczady National Park under the global warming" doc
... share of 88.7% in the number of trees and 84.9%
in the total stand volumes. Additional tree species
include fir (5.7% in the tree count and 9.5% in stand
volumes) and sycamore (3.8% and 3.5% ... that the most important tree
species in beech forests in the Bieszczady Mountains
are beech, fir (Abies alba Mill. ) and sycamore (Acer
pseudo...
Báo cáo lâm nghiệp: "Chemical thinning in blue spruce (Picea pungens Engelm.) stands and its effects on cambioxylophagous fauna" docx
... chemical
thinning consists in the fact that trees killed by chem-
ical treatment and left in the stand to their natural
Chemical thinning in blue spruce (Picea pungens Engelm .)
stands and its ... condition of the phloem occur in standing
stem breaks in young spruce stands broken by snow
or in older stands after wind breakages. Such stem
breaks in s...
Báo cáo lâm nghiệp: "Multifunctional forestry practices as a land use strategy to meet increasing private and public demands in modern societies" ppt
... addresses the time perspective (permanent
and continuing), the kinds of activities (maintaining
and creating), the objectives (needs and goals), and
the qualifying criteria (optimal fulfilment).
Management ... ( 6): 290–298
and managing responsibly. Openness and flexibility
in reacting to changing societal needs and values,
understanding of the ecological, soci...
Báo cáo lâm nghiệp: "Timber harvesting in the ukrainian carpathians: Ecological problems and methods to solve them" ppsx
... sampling.
Before the beginning of investigations the radius of
turns, lengths of linear plots, weight and geometrical
parameters of a tractor were determined. Samples of
the undamaged layer of ... us-
ing engineering structures and drainage and have
rather large longitudinal inclines, which in most
cases does not allow using them for the passage
of wheeled m...
Báo cáo lâm nghiệp: "Multiaged silviculture in North America" potx
... O’H 200 7),
and mixed Norway spruce (Picea abies) /Scots pine
(Pinus sylvestris) in Finland (O’H et al. 200 1).
ese models provide a flexible user interface and
can predict volume increment, ... diameter in the
distribution, and “q” a measure of the slope of the
relationship. is “q” is a simple ratio of the number
of trees in one diameter cla...
Báo cáo lâm nghiệp: "Available nitrogen in the surface mineral layer of Serbian forest soils" docx
... (200.47 mg of N
per pot) and the lowest on Chernozem (127.80 mg
of N per pot).
Inorganic forms of N availability in soil
e total content of C and N in the examined soils
(Table 3) is in the range ... nitrogen fractions originating from the fertilizer (N
dff
) and soil (N
dfs
) in the experimental crop
(mg N per pot) and the obtained A-valu...
Báo cáo lâm nghiệp: "Seasonal fluctuation in germination of short and longterm stored Norway spruce" ppsx
... 2002. Seasonal and chilling effect on
germination of Norway spruce (Picea abies (L .) Karsten)
and Scots pine (Pinus sylvestris L .) seeds. In: Proceedings
2002 Annual Meeting of IUFRO 2. 09. ... E(Y
m
)
2
+ B
2
( 4)
e first element
E(Y
m
) is the error of determining
the germination parameter (GE, GC) for a tested
seed lot from the sample o...