TABLE X I
Potassium (kg per ha) in Plant and Soil Material in Ecosystems
Trees
Pinus Pinus
Pinus Pinus Pinus Pinus Pinus
Picea
Picea
Piceo
Picea
Picea
sylvestris aylvestris sylvestris sylveatris sylvestris nzgra
nigra
abies
abies
abiea
abies
abies
Location
England Scotland England England Scotland Eneland Scotland England England England Sweden Sweden
Stand Pu'umber
3
4
Age of trees in years
Living plants
Tree layer
Fruit
Leaves
Branrhes
Trunks
Understorey plants
Dead plant material
Roots
On trees (branches)
Litter on ground (L, F and
and H)
Mineral soil (exchangeable)
Removed i n harvested trunks
Total removed in tree trunks
Depth of sampling in mineral
Reference
if clear felled
soil ern
23
33
-
1
52
43
28
3 9,
34
84
2
< 1
35
54
4
4
24
165
4
0
38
84
-
-
-
-
A
B
5
6
7
47
55
64
-
2
}95
40
19
19
29
54
a6
51
165
"2
-
43
"
-
-
-
-
-
11
34
88
98
-
-
249
-
142
144
-
-
-
70
C
A
D
u
10
11
46
48
24
-
359
-
89
-
191
68
-
70
C
D
12
20
j 3 0 1
136
0
-
-
31
147
6
14"
60
C
18
47
}ll,
44
C)
-
-
30
238
85
1%
70
C
-
19
47
}iG6
60
0
-
-
21
233
59
119
70
C
21
58
-
56
29
52
-
-
2
273t
-
-
52
-
E
t Includes Ao +A1 soil horizon.
For key to references see foot of Table S V .