| Reference |
Organic C flux
(x108 Mg C y-1) |
| Williams (1971) |
0.3 |
| Duce and Duursma (1977) |
1.0–1.5 |
| Skopintsev (1971) |
1.8 |
| Kempe (1979) |
1.9 |
| Gerrels et al. (1975) |
2.0 |
| Garrels and Mackenzie (1971) |
3.0 |
| Mullholland and Watts (1982) |
3.0–4.0 |
| Meybeck (1981) |
4.0 |
| Schlesinger and Melack (1981) |
3.7–4.1 |
| Stewart et al. (1978) |
5.0 |
| Reiners (1973) |
2.0–10.0 |
| Richey et al. (1980) |
10.0 |
|