BushfireConf2015 - 27. Prescribed burning provides opportunities for site restoration via weed...
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Transcript of BushfireConf2015 - 27. Prescribed burning provides opportunities for site restoration via weed...
Our goal (DEWNR) is to ensure that the vegetation condition does not deteriorate and fuels don’t increase due to woody weeds.
But we are also achieving restoration gains.
Distribution and cover of gorse (Ulex europaeus) in 2011 – Pre burn
Distribution and cover of gorse 2015 – 4 years post burn
Key learning – Important to be able to track the progress of individual burns over time.
Key learning – pre burn control increases efficiency and improves restoration outcomes.
Brush cut and burnt English broom (Cytisus scoparius)
Cut and swabbed Rhamnus alaternus
Erica arborea (tree heath) control
Pre burn control;•Ensures biomass burns – by increasing available fuel•Promotes Erica germination pre burn – then burn kills juveniles•Ensures adults don’t flower and seed on burnt ground (also creates uniform age class for follow up)•Promotes native germination•Makes follow up work easier
Pre control Post control – pre burn
Post burn
Callystachys lanceolata (wonnich) in perched swamp
Identified as a restoration burn for threatened plants being out competed by Callystachys.
Surrounding vegetation burnt under mild conditions during spring. Swamp burnt the following Autumn at higher intensity to consume Callystachys and stimulate germination.
Followed up before seed set.