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
Table 3: The global organic C fluxes in some world rivers estimated from extrapolating the annual organic C flux data from several rivers (modified from Hope et al. [13]).