Remediation of active gullies – reveg and stabilisation( includes fencing and destocking) |
|
M-H( 50 % effectiv eness, Wilkinson et al. 2015) |
M |
Zero to negative |
L |
Andrew Brooks assumption $ 350,000 / far m
$ 41,200 / km excl rockshut e( Skull et al., 2016)
$ 4,500-9,000 / km and add $ 10-30,000 / km if hydroseeding is included( Wilkinson et al., 2015)
|
Probably no |
Maybe |
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Remediation of active gullies – includes and major earth works |
|
H( 70 % effective ness, Wilkinson et al. 2015) |
M |
Zero to negati ve |
L |
Andrew Brooks assumption $ 700,000 / far m
Alternatively assume $ 66,200 / km( Skul l et al., 2016)
|
Probably yes |
Maybe or no. Comments for previous, only harder |
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Drop structure: $ 30,000 – 50,000 per gully head, reshaping and seeding: $ 10,000 per gully head( Wilkinson et al., 2015). |
Alluvial gullies |
Erosion prevention( fencing to achieve reduced / contr olled livestock access and linear features management |
|
M( 30 % effective ness, Wilkinson et al. 2015) |
M |
Zero to L |
L As for hillslope gullies As for grazing fencing Yes |
Remediation of active gullies- minor works / manag |
|
H( 50 % effective ness, |
M |
Zero to negative |
N / A |
$ 6 million($ 20,000 / ha for 300 ha gullies on an assumed 20,000 ha |
Probably yes |
Maybe |