Bushfire risk assessment risk management plan 199 Maximillian Road Noosa North Shore Revision 1 - November 2019 · MCU20/0087

                           Ecological Natural Area Management

Patch and corridor filtering
Leonard et al (2014) specify a filtering process
to remove or downgrade hazard levels of small
patches and narrow corridors of hazardous
vegetation as fire-line intensity in these small
patches is unlikely to reach the level predicted
for large contiguous patches of vegetation
(Leonard et al (2014), page 5). Using the map
below, patch and corridor filtering was
conducted.




                                                              Figure 11: Map of the patches of vegetation used
                                                              for patch and corridor filtering



Patch filtering tabulation
Patch      Initial class            Merge class              Reason for merge                             Potential load
Patch 1    Melaleuca woodlands Moist to dry eucalypt         Allocated to Moist to dry eucalypt open        24.1 t/ha
           on coastal swamps   open forests on               forests on coastal lowlands through the
                               coastal lowlands              “filtering process to remove or downgrade
                                                             hazard levels of vegetation less than 100m
                                                             wide through patch erosion and
                                                             dilation...allocating it to the class most
                                                             common to the patch boundary
Patch 2    Moist to dry eucalypt    Moist to dry eucalypt    No merge as patch is large. Remains as         24.1 t/ha
           open forests on          open forests on          Moist to dry eucalypt open forests on
           coastal lowlands         coastal lowlands         coastal lowlands
Patch 3    Moist to dry eucalypt    Low to moderate tree     Allocated to Low to moderate tree cover in       5 t/ha
           open forests on          cover in rural areas     rural areas by filtering as above
           coastal lowlands
Patch 4    Melaleuca woodlands Melaleuca woodlands           No merge as patch is large. Remains as         28.4 t/ha
           on coastal swamps   on coastal swamps             Melaleuca woodlands on coastal swamps
Patch 5    Low to moderate tree Low to moderate tree         No merge as patch is large. Remains as           5 t/ha
           cover in rural areas cover in rural areas         Low to moderate tree cover in rural areas
Patch 6    Moist to dry eucalypt    Moist to dry eucalypt    No merge as patch is large. Remains as         24.1 t/ha
           open forests on          open forests on          Moist to dry eucalypt woodland on coastal
           coastal lowlands and     coastal lowlands and     lowlands and ranges
           ranges                   ranges




Bushfire Risk Assessment and Management Plan for a house at 199 Maximillian Road, Noosa North Shore        November 2019

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