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On June 7, 2019 at 9:05:23 AM +1000, National Native Title Tribunal:
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f | 1 | { | f | 1 | { |
2 | "author": null, | 2 | "author": null, | ||
3 | "author_email": null, | 3 | "author_email": null, | ||
4 | "creator_user_id": "8d2ac61a-d63a-4456-a00d-b35fee4c4025", | 4 | "creator_user_id": "8d2ac61a-d63a-4456-a00d-b35fee4c4025", | ||
5 | "id": "b7d822b0-3875-43d3-82aa-dae4be52c237", | 5 | "id": "b7d822b0-3875-43d3-82aa-dae4be52c237", | ||
6 | "license_id": "cc-by", | 6 | "license_id": "cc-by", | ||
7 | "maintainer": null, | 7 | "maintainer": null, | ||
8 | "maintainer_email": null, | 8 | "maintainer_email": null, | ||
9 | "metadata_created": "2018-06-15T08:52:48.772839", | 9 | "metadata_created": "2018-06-15T08:52:48.772839", | ||
t | 10 | "metadata_modified": "2019-01-17T00:25:23.345681", | t | 10 | "metadata_modified": "2019-06-06T23:05:23.456586", |
11 | "name": "assessment-of-river-flat-eucalypt-forest-tec-south", | 11 | "name": "assessment-of-river-flat-eucalypt-forest-tec-south", | ||
12 | "notes": "The operational map for River-flat Eucalypt Forest (RFEF) | 12 | "notes": "The operational map for River-flat Eucalypt Forest (RFEF) | ||
13 | was constructed to resolve long-standing issues surrounding its | 13 | was constructed to resolve long-standing issues surrounding its | ||
14 | identification, location and extent within the NSW State Forest estate | 14 | identification, location and extent within the NSW State Forest estate | ||
15 | covered by the coastal Integrated Forestry Operation Agreements. The | 15 | covered by the coastal Integrated Forestry Operation Agreements. The | ||
16 | map was constructed in two parts, with State Forests to the north of | 16 | map was constructed in two parts, with State Forests to the north of | ||
17 | Sydney being mapped in a separate process to those to the south of | 17 | Sydney being mapped in a separate process to those to the south of | ||
18 | Sydney. We did this to minimise the risk that relationships between | 18 | Sydney. We did this to minimise the risk that relationships between | ||
19 | regional vegetation communities and the TEC would be confounded or | 19 | regional vegetation communities and the TEC would be confounded or | ||
20 | masked by geographical variation or other major ecological gradients, | 20 | masked by geographical variation or other major ecological gradients, | ||
21 | which might otherwise be a significant risk if we had treated the full | 21 | which might otherwise be a significant risk if we had treated the full | ||
22 | latitudinal range of the TEC as a single study area. In total, we | 22 | latitudinal range of the TEC as a single study area. In total, we | ||
23 | assessed 1,218,000 hectares of State Forest across coastal NSW. This | 23 | assessed 1,218,000 hectares of State Forest across coastal NSW. This | ||
24 | consisted of 868,000 hectares of State Forest on the north coast and | 24 | consisted of 868,000 hectares of State Forest on the north coast and | ||
25 | more than 350,000 hectares of State Forest on the south coast. \r\nIn | 25 | more than 350,000 hectares of State Forest on the south coast. \r\nIn | ||
26 | both study areas, the project\u2019s Threatened Ecological Community | 26 | both study areas, the project\u2019s Threatened Ecological Community | ||
27 | (TEC) Reference Panel (the Panel) preceded the assessment process by | 27 | (TEC) Reference Panel (the Panel) preceded the assessment process by | ||
28 | reviewing the determination for RFEF and agreeing upon a set of | 28 | reviewing the determination for RFEF and agreeing upon a set of | ||
29 | diagnostic parameters for its identification. The Panel found that | 29 | diagnostic parameters for its identification. The Panel found that | ||
30 | RFEF is primarily defined by floristic plot data and that it is mostly | 30 | RFEF is primarily defined by floristic plot data and that it is mostly | ||
31 | located on coastal floodplains and associated alluvial | 31 | located on coastal floodplains and associated alluvial | ||
32 | landforms.\r\nFollowing on from these conclusions, we started the | 32 | landforms.\r\nFollowing on from these conclusions, we started the | ||
33 | mapping process by mapping the distribution of floodplains and | 33 | mapping process by mapping the distribution of floodplains and | ||
34 | alluvial soils and thus identifying possible areas of RFEF. For both | 34 | alluvial soils and thus identifying possible areas of RFEF. For both | ||
35 | the north and the south coast we used an existing map of coastal | 35 | the north and the south coast we used an existing map of coastal | ||
36 | landforms and geology in combination with several fine-scale models of | 36 | landforms and geology in combination with several fine-scale models of | ||
37 | alluvial landform features to determine the likely extent of | 37 | alluvial landform features to determine the likely extent of | ||
38 | floodplains and alluvial soils within our study areas.\r\nWe used | 38 | floodplains and alluvial soils within our study areas.\r\nWe used | ||
39 | aerial photograph interpretation (API) to assess the floristic and | 39 | aerial photograph interpretation (API) to assess the floristic and | ||
40 | structural attributes of the vegetation cover found on our modelled | 40 | structural attributes of the vegetation cover found on our modelled | ||
41 | alluvial environments, and thus delineated polygons likely to contain | 41 | alluvial environments, and thus delineated polygons likely to contain | ||
42 | RFEF. We also used API to modify the boundaries of the modelled | 42 | RFEF. We also used API to modify the boundaries of the modelled | ||
43 | alluvial areas using a prescribed list of eucalypt, casuarina and | 43 | alluvial areas using a prescribed list of eucalypt, casuarina and | ||
44 | melaleuca species in combination with the interpretation of landform | 44 | melaleuca species in combination with the interpretation of landform | ||
45 | elements relevant to alluvial and floodplain environments.\r\nWe then | 45 | elements relevant to alluvial and floodplain environments.\r\nWe then | ||
46 | compiled floristic plot data for all State Forest areas within our | 46 | compiled floristic plot data for all State Forest areas within our | ||
47 | modelled alluvial landforms and API polygons. For both the north and | 47 | modelled alluvial landforms and API polygons. For both the north and | ||
48 | the south coast the floristic plot data was sourced from both existing | 48 | the south coast the floristic plot data was sourced from both existing | ||
49 | flora surveys held in the OEH VIS database and from targeted flora | 49 | flora surveys held in the OEH VIS database and from targeted flora | ||
50 | surveys conducted specifically for this project. We compared these | 50 | surveys conducted specifically for this project. We compared these | ||
51 | plots with those previously assigned to flora communities listed in | 51 | plots with those previously assigned to flora communities listed in | ||
52 | the determination of RFEF. Both dissimilarity-based methods and | 52 | the determination of RFEF. Both dissimilarity-based methods and | ||
53 | multivariate regression methods were used for the comparison. The | 53 | multivariate regression methods were used for the comparison. The | ||
54 | results of the comparison were then used to assess the likelihood that | 54 | results of the comparison were then used to assess the likelihood that | ||
55 | the plots in State forests belonged to one or more of the communities | 55 | the plots in State forests belonged to one or more of the communities | ||
56 | listed in the RFEF determination.\r\nFollowing this, we developed a | 56 | listed in the RFEF determination.\r\nFollowing this, we developed a | ||
57 | predictive statistical model of the probability of occurrence of RFEF | 57 | predictive statistical model of the probability of occurrence of RFEF | ||
58 | using plot data and a selection of environmental and remote-sensing | 58 | using plot data and a selection of environmental and remote-sensing | ||
59 | variables. For the north coast, we used a Random Forest model, while | 59 | variables. For the north coast, we used a Random Forest model, while | ||
60 | for the south coast we used a Boosted Regression Tree model.\r\nTo | 60 | for the south coast we used a Boosted Regression Tree model.\r\nTo | ||
61 | create the operational map, we assigned every mapped API polygon to | 61 | create the operational map, we assigned every mapped API polygon to | ||
62 | RFEF if appropriate based on the plot data, over-storey and | 62 | RFEF if appropriate based on the plot data, over-storey and | ||
63 | understorey attributes, landform features and modelled probabilities | 63 | understorey attributes, landform features and modelled probabilities | ||
64 | underlying each API polygon. \r\nWe mapped 3819 hectares of RFEF on | 64 | underlying each API polygon. \r\nWe mapped 3819 hectares of RFEF on | ||
65 | the south coast and 198 hectares of RFEF on the north | 65 | the south coast and 198 hectares of RFEF on the north | ||
66 | coast.\r\n\r\nOperational TEC Mapping have been derived by API at a | 66 | coast.\r\n\r\nOperational TEC Mapping have been derived by API at a | ||
67 | viewing scale between 1-4000 using ADS40 50 cm pixel imagery and 1 m | 67 | viewing scale between 1-4000 using ADS40 50 cm pixel imagery and 1 m | ||
68 | derived LIDAR DEM grids for floodplain EECs.", | 68 | derived LIDAR DEM grids for floodplain EECs.", | ||
69 | "owner_org": "83a21590-19cd-49af-a188-f06f5d4fe231", | 69 | "owner_org": "83a21590-19cd-49af-a188-f06f5d4fe231", | ||
70 | "private": false, | 70 | "private": false, | ||
71 | "revision_id": "1d8b5616-1fdc-4cfc-a579-10c39e0dfe06", | 71 | "revision_id": "1d8b5616-1fdc-4cfc-a579-10c39e0dfe06", | ||
72 | "state": "active", | 72 | "state": "active", | ||
73 | "title": "Assessment of River-Flat Eucalypt forest on Coastal | 73 | "title": "Assessment of River-Flat Eucalypt forest on Coastal | ||
74 | floodplains TEC on NSW Crown Forest Estate", | 74 | floodplains TEC on NSW Crown Forest Estate", | ||
75 | "type": "dataset", | 75 | "type": "dataset", | ||
76 | "url": "", | 76 | "url": "", | ||
77 | "version": null | 77 | "version": null | ||
78 | } | 78 | } |