Table 2.
D-MixSIAR and pooled MixSIAR source apportionment data for the Bidwell watershed for (a) model runs with uninformative prior where CB is channel bank, CU is cultivated soil, PP is permanent pasture (node M1 only), RM is rotational pasture (i.e. cultivated at some point in the past), P is the former 2 combined (for pooled MixSIAR), and RM is material sampled from the roads.
| Model unit | Source | D-MixSIAR (factor = type) | Pooled-MixSIAR (factors = node and type) | |
|---|---|---|---|---|
| Susp. Sed | Bed sed. | |||
| Upper Bidwell (Node M1) | CB | 0.19 ± 0.13 | 0.14 ± 0.10 | 0.05 ± 0.06 |
| CU | 0.11 ± 0.07 | 0.10 ± 0.07 | 0.51 ± 0.16 | |
| PP | 0.39 ± 0.13 | 0.47 ± 0.10 | 0.26 ± 0.15 (P) | |
| RP | 0.15 ± 0.10 | 0.11 ± 0.07 | ||
| RM | 0.16 ± 0.05 | 0.17 ± 0.04 | 0.18 ± 0.11 | |
| Lower Bidwell (Node M2) | CB | 0.22 ± 0.11 | 0.32 ± 0.09 | 0.36 ± 0.15 |
| CU | 0.21 ± 0.10 | 0.19 ± 0.09 | 0.44 ± 0.15 | |
| PP | 0.27 ± 0.10 | 0.27 ± 0.07 | 0.09 ± 0.10 (P) | |
| RP | 0.12 ± 0.04 | 0.13 ± 0.07 | ||
| RM | 0.18 ± 0.10 | 0.10 ± 0.03 | 0.11 ± 0.08 | |
| Bed sediment (both nodes M1 and M2) | CB | n/a | n/a | 0.24 ± 0.17 |
| CU | n/a | n/a | 0.39 ± 0.19 | |
| P | n/a | n/a | 0.16 ± 0.13 | |
| RM | n/a | n/a | 0.21 ± 0.16 | |
| Suspended sediment (both nodes M1 and M2) | CB | n/a | n/a | 0.15 ± 0.13 |
| CU | n/a | n/a | 0.40 ± 0.20 | |
| P | n/a | n/a | 0.25 ± 0.18 | |
| RM | n/a | n/a | 0.20 ± 0.15 | |
Note pooled MixSIAR delivers posterior distributions according to either node or type as factors.