Att 5. BAL Report - 555 Louis Bazzo Dr

Site assessment supports the classification of the closest vegetation as being predominantly RE 12.11.2 and
12.11.16.
and proposes the fuel values established in Section 3 for use in fire modelling undertaken in Section 6.

DNRME provides the following Description and recommended fire guidelines for the vegetation communities
present.

 Regional Ecosystem         Description                                   Fire Guidelines
                            Tall open-forest with vine forest             SEASON: Late summer to autumn.
 RE 12.11.2                 understorey ('wet sclerophyll'). Canopy
 Of Least                   species include Eucalyptus saligna or E.      INTENSITY: Moderate to high.
                            grandis, E. microcorys, E. acmenoides and
 Concern                    Lophostemon confertus. Characteristic
                                                                          INTERVAL: Minimum 20 years, maximum unknown,
                            understorey species include Caldcluvia
                                                                          requiring further research.
                            paniculosa, Pittosporum undulatum,
                            Synoum glandulosum and Cryptocarya
                            glaucescens. Occurs on Palaeozoic and         STRATEGY: Needs disturbance to maintain RE structure
                            older moderately to strongly deformed and     (eucalypt overstorey, rainforest dominated but mixed
                            metamorphosed sediments and                   species understorey). It is unlikely that mosaic burns
                            interbedded volcanics. (BVG1M: 8a)            will be achievable because fire would most likely be of
                                                                          higher intensity (i.e., likely to be a wildfire) and is only
                                                                          likely to occur at long intervals (at least 20+ years)
                            Vegetation Hazard Class (VHC) 8.1 35t/ha
                                                                          during prolonged dry periods. In exceptional
                            Total Available Fuel Load (State Default
                                                                          circumstances, different localities containing this
                            Value)
                                                                          ecosystem could be burnt to ensure a continuum of
                                                                          habitat availability across the broader landscape. Using
                                                                          this strategy maximises the probability of spatial
                                                                          mosaics in the landscape.

                                                                          ISSUES: Operationally there will be many areas of wet
                                                                          sclerophyll that cannot be safely burnt, and will only
                                                                          burn in wildfire. There is evidence that suggests that
                                                                          infrequent high intensity fires sustain the eucalypt
                                                                          overstorey. Wet sclerophyll has been shown to be a
                                                                          moving ecotone between vine forest and moist/dry
                                                                          sclerophyll.



                            Eucalyptus cloeziana +/- E. propinqua, E.     SEASON: Summer to winter.
 RE 12.11.16                acmenoides, E. microcorys and E. grandis
 Endangered                 open forest. Understory is generally          INTENSITY: Plan for low to moderate. Unplanned
                            shrubby +/- vine forest species. Occurs on    occasional high intensity wildfire will occur.
                            Palaeozoic and older moderately to strongly
                            deformed and metamorphosed sediments
                                                                          INTERVAL: 4-8 years maintains a healthy grassy system.
                            and interbedded volcanics, especially
                                                                          8-20 years for shrubby elements of understorey.
                            phyllite of the Kin Kin Beds. (BVG1M: 8b)

                                                                          STRATEGY: Aim for 40-60% mosaic burn. Needs
                            Vegetation Hazard Class (VHC) 8.2
                                                                          disturbance to maintain RE structure (eucalypt
                            23.8t/ha Total Available Fuel Load (State
                                                                          overstorey with open understorey of predominantly
                            Default Value)
                                                                          non-rainforest species).

                                                                          ISSUES: Frequent fire is needed to maintain
                                                                          understorey integrity, keeping more mesic species low
                                                                          in the profile of the understorey so that other species
                                                                          can compete. It is essential that wildfires are not the
                                                                          sole source of fire in this ecosystem. High intensity fires
                                                                          occur periodically through time, however frequent low
                                                                          to moderate intensity fires will create the disturbance
                                                                          required to keep the understorey diverse. A follow-up

Report compiled by Bushfire Risk Reducers for Mr Tim Olah, June 2021                                         Page 13