TABLE X X
Net Leaf Production in Relation to Net Non-leaf Production*
~
~~
Authority
Species
Total
Leaf
Stem
Below
ground
(metric tons /ha/yr )
Polster, 1950
Pinua silvestris
9.4
1.5
6.3
( 1.6)
Ovington, 1957
Pinus silvestris
12.4
3.3
7.2
1.9
Ehwald, 1957
Pinua mXvestria
8.8
3.0
4.6
1.2
Polster, 1950
Picea abies
14.2
2.1
9.7
(2.4)
Moller, 1945
Picea abies
15.6
2.7
(10.4)
(2.5)
Ehwald, 1957
Picea abies
14.8
3.7
9.0
2.1
Polster, 1950
Pseudotsuga rnenziesii
17.5
2.7
11-9
(2-9)
Polster, 1950
Larix europaea
14.2
5.6
6.2
(2.4)
Polster, 1950
Fagus silvatica
14.2
3.2
8.6
(2.4)
Ehwald, 1957
Fagus silvatica
12.6
3.5
7.3
1.8
Ovington and Madgwick, 1959
Betula verrucosa
9.0
1.7
5.1
2.2
Polster, 1950
Betula verrucosa
8.6
2.0
5.2
(1.4)
Ovington et al.. 1963
Quercus borealis
9.1
3.5
4.1
(1.5)
Polster, 1950
Quercus robur
10.4
2.4
6.3
(1.7)
Satoo et al., 1956
Populua davidiana
7.8
2.2
4.3
(1.3)
Bray and Dudkiewicz, 1963
Populus trernuloidee
10.9
3.8
5.3
(1.8)
(data of Zhmerle)
(data of Zimmerle)
Moller et al., 1954
Fagus silvatica
11.4
2.5
7.4
1.5
(data of Dieterich)
Moller, 1945
Fraxinus excelsior
10.9
2.7
6-7
1.5
Nye, 1961
Equatorial forest, Ghana
24.3
7.0
14.7
2.6
Bartholomew et al., 1953
Equatorial forest, Congo
31-5
9.5
19.2
2.8
10 deciduous Angiosperms
10.5
2.8
6-0
1.7
2 equatorial forests
27.9
8.3
16.9
2.7
Means
7 evergreen Gymnosperms
13.2
2.7
8.4
2.1
18 cold temperate forests
11.7
2.9
7.0
1-9
* Figures i n brackets were estimated (see text).