maintenance by the landholder( in-kind) and was mostly stable in December 2024.
No remediated gullies in Sodosol soil achieved the stable rating( Figure 24).
The changes in land condition scores for remediated gully sites are displayed in Figure 25. Lines have been colour coded by soil type and line thickness indicates the depth of the site’ s subsoil. Gullies remediated in erodible Sodosol soils( brown lines) generally showed a modest change over time( Figure 26 as example). The exception, Site 9, had maintenance work two months prior to the 2024 assessment and reflects the early success of that. The two gullies in Downs country Vertosols( purple lines) increased in score reflecting the successful stabilisation of the gullies. The blue line represents Site 14 which is situated in a valley with relatively stable alluvial soils.
3
2
1
0
0 Stable
3
Mostly stable
Partly stable
Figure 24. Level of stability achieved at remediated gullies with Sodosol soils by December, 2024.
2
1
Active / unstable
100
80
Site 7 LCAT 2 Sodosol; Bank in catchment, Subsoil < 1m, Seed
Site 8 LCAT 2 Sodosol; Bank in catchment, Subsoil < 1m, Seed
Score #/ 100
60
40
20
0 2022 2023 2024
Year
Colour by soil type( Sodosol: brown / yellow; Vertosols: purple), line thickness indicates subsoil relative depth(< 1m or > 1m)
Site 9 LCAT 2 Sodosol; Subsoil > 3m, Reshape, Seed, assesse...
Site 10 LCAT 3 Sodosol; Subsoil 1-3m, Chute Seed
Site 14 LCAT 2 Kurosol; earth dam / weirs
Site 20 LCAT 3 Sodosol; Subsoil 1-3m, Gully to bedrock, catchment
Site 22 LCAT 2 Sodosol; Subsoil > 3m, Bund, Reshape, Seed
Site 23 LCAT 3 Vertosol; Subsoil 1-3m, Banks in catchment
Site 24 LCAT 2 Vertosol; Subsoil
Figure 25. Land condition assessment scores for gullies at small-scale gully remediation sites.
34 GULLY MAINTENANCE AND MONITORING TECHNICAL REPORT