Jökull - 01.12.2006, Page 36

Y. Wang and M. J. Wooller
Sample types %N %C δ15N δ13C C/N
(‰) (‰)
Litla-Viðarvatn
Grass (T) 0.5 42.1 -3.7 -29.0 86.1
0.4 42.4 -4.8 -28.5 98.5
Heather (T) 1.0 57.7 -8.7 -27.3 58.3
1.0 54.8 -9.3 -27.2 57.4
Herb (T) 1.4 58.2 -5.8 -28.8 42.4
1.7 55.8 -5.9 -28.3 32.9
Herb (T) 1.1 47.4 -0.7 -28.0 41.3
1.3 48.5 -1.0 -28.0 37.4
Lichen (T) 0.3 48.1 -8.8 -23.3 180.4
0.2 47.2 -7.0 -23.5 205.7
Moss (T) 0.2 45.5 -6.4 -25.8 201.5
0.2 43.4 -9.1 -26.0 199.3
Surface sample 2.2 10.2 -1.2 -19.8 4.7
Torfadalsvatn
Carex sp. (T) 1.0 38.4 -0.7 -27.3 39.0
1.2 42.8 -0.3 -27.6 36.5
Carex sp. (T) 0.5 45.4 -2.8 -29.4 84.6
0.5 45.6 -4.7 -28.6 89.6
Carex sp. (T) 0.3 43.2 -5.3 -27.8 125.1
0.3 44.2 -7.0 -27.9 175.5
Grass (T) 1.1 36.4 -3.2 -29.2 31.8
0.9 38.5 -4.4 -29.4 43.7
Grass (T) 0.2 45.6 -6.6 -27.5 222.7
Heather (T) 0.6 52.5 -8.2 -29.3 91.0
0.6 52.6 -6.3 -29.5 88.8
Herb (T) 0.9 49.1 -5.5 -28.3 54.1
1.1 47.5 -4.6 -27.7 41.9
Lichen (T) 0.4 37.7 -7.5 -26.7 96.2
0.5 44.6 -5.8 -26.1 95.4
Lichen (T) 1.1 44.3 -5.0 -24.7 42.1
Lichen (T) 1.3 41.1 -3.4 -24.5 31.4
1.4 43.9 -2.6 -24.4 31.4
Moss (T) 0.7 36.9 -0.2 -26.1 53.9
0.5 35.3 -0.1 -26.4 69.2
Potamogeton 2.0 43.4 -1.8 -12.8 21.7
sp. (A) 2.2 44.3 -1.7 -13.2 20.6
Potamogeton 2.2 28.0 -4.2 -14.2 12.6
sp. (A) 2.3 28.7 -4.1 -14.1 12.2
Potamogeton 4.8 45.3 4.2 -11.5 9.4
sp. (A) 4.5 44.9 4.3 -11.6 9.9
Surface 1.1 12.8 -1.5 -20.6 11.4
sample
Sample types %N %C δ15N δ13C C/N
(‰) (‰)
Stífluvatn
Herb (T) 4.1 41.3 3.0 -26.3 10.0
4.1 41.1 3.2 -26.5 10.0
Herb (T) 1.3 15.7 5.6 -25.3 11.9
1.1 16.1 5.2 -25.7 15.2
Surface 0.3 3.1 -0.1 -28.6 9.4
sample
Arnarvatn stóra
Carex (T) 2.0 47.9 -6.6 -30.7 79.2
1.9 48.0 -6.9 -30.9 76.4
Grass (T) 0.5 43.1 -5.9 -27.5 86.6
0.5 47.3 -6.6 -27.3 93.1
Herb (T) 0.7 55.8 -5.6 -27.4 23.9
0.7 57.0 -6.0 -27.3 25.7
Herb (T) 1.0 42.2 -5.3 -30.0 23.7
1.1 40.8 -4.9 -29.6 20.4
Lichen (T) 0.7 43.8 -12.4 -24.6 60.4
0.6 43.3 -11.2 -24.6 73.5
Moss (T) 2.2 52.3 -5.8 -28.1 41.7
2.5 50.0 -5.5 -28.0 36.7
Surface 1.1 6.3 -1.5 -26.3 5.6
sample
Table 1: N and C percentages (%N and %C) and
stable isotopic compositions (δ15N and δ13C) of
lichens and plants (T=terrestrial, A= aquatic) from
Lakes Litla-Viðarvatn, Torfadalsvatn, Stífluvatn, and
Arnarvatn stóra in Iceland. – Hlutföll köfnunarefnis
og kolefnis í fléttum og öðrum gróðri úr Litla-
Viðarvatni, Torfadalsvatni, Stífluvatni og Arnarvatni
stóra.
34 JÖKULL No. 56