ULDIS GRINFELDS ARNIS TREIMANIS INESE SABLE 1 6 2 3 7 4 5 Locations of sampling 1 Auce 2 Iecava 3 Ieriķi 4 Madona 5 Malta 6 Šķēde 7 Valmiera Spruce ID: 637571
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Slide1
THE IMPACT OF TREES GROWTH CONDITIONS ON CELL WALL STRUCTURE AND CHEMICAL COMPOSITION
ULDIS GRINFELDS, ARNIS TREIMANIS, INESE SABLESlide2
1
6
2
3
7
4
5
Locations
of
sampling
: 1 - Auce, 2 - Iecava, 3 - Ieriķi, 4 - Madona, 5 - Malta, 6 - Šķēde, 7 - Valmiera
Spruce, Aspen
Aspen,Hybride Aspen
Spruce
Aspen
Spruce, Aspen, Hybride Aspen
Spruce, Aspen, Hybride Aspen
Pine, Spruce, Birch, AspenSlide3
3
Age
of
tree
, years
Stem diameter, mm
Ieriķi
,
Aspen
Auce
, Aspen
Talsi
, Aspen
Iecava
,
Aspen
Iecava
, Hybrid Aspen
0
20
40
60
80
100
120
140
160
180
0
10
20
30
40
50
60
Forest
land
Agriculture
land
Tree
growth
speedSlide4
Wood
density
, kg/m
3
Wood density
Forest landAgruculture landSlide5
Birch measurements by SilviScan Slide6
Fibre
length
, mm
Kraft
pulp fibre length
Forest landAgruculture landSlide7
Hansheets
tensile
index
, Nm/g Handsheets tensile strength (made from unbeaten kraft pulp)
Forest landAgruculture landSlide8
Specific wood consumption, m3
/tSpecific
wood
consumption
Forest landAgruculture land
Q – Pulp yield - wood densitySlide9
I
t is possible to a certain extent
foretell the main features
of wood of specific tree species
if forest growth conditions are known.
Thank you
!