Modelling Soil Water Retention for Weed Seed Germination Sensitivity to Water Potential

Table 3

Akaike weights and evidence ratios for the soil water retention models.

𝜃𝑟 derivation; Model	Akaike weight^a	Evidence ratio^b	Rank
Absent
CA	0.143	1.4	4
Measured
BC	0.015	13.2	9
VG5	0.006	35.9	10
VG4	0.018	11.4	8
TA	0.000	67, 045.1	16
RU	0.000	19, 531.6	15
Modified
BC	0.203	1.0	1
VG5	0.075	2.7	6
VG4	0.169	1.2	3
TA	0.002	85.3	12
RU	0.003	72.2	11
Estimated
BC	0.172	1.2	2
VG5	0.063	3.1	7
VG4	0.132	1.5	5
TA	0.000	10, 542.0	14
RU	0.000	5, 323.0	13

^aAkaike weight (𝑤_𝑖) is based on average AIC value across all hillslope positions.
^bEvidence ratio (𝑤_𝑖/𝑤_𝑗) is based on 𝑤_𝑖 from average AIC values, where model 𝑖 is the best-fitting model (BC model with modified 𝜃_𝑟), and 𝑗 indexes the remaining models in the set.