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On June 7, 2019 at 9:17:45 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": "90d9a444-c296-4929-bbb0-b46c338b4f76", | 5 | "id": "90d9a444-c296-4929-bbb0-b46c338b4f76", | ||
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": "2018-06-15T08:52:36.797338", | 9 | "metadata_created": "2018-06-15T08:52:36.797338", | ||
t | 10 | "metadata_modified": "2019-01-17T00:17:11.361864", | t | 10 | "metadata_modified": "2019-06-06T23:17:45.382187", |
11 | "name": "assessment-of-floodplain-tecs-of-the-north-coast", | 11 | "name": "assessment-of-floodplain-tecs-of-the-north-coast", | ||
12 | "notes": "Operational map for River-flat Eucalypt Forest:\r\n\r\nThe | 12 | "notes": "Operational map for River-flat Eucalypt Forest:\r\n\r\nThe | ||
13 | operational map for River-flat Eucalypt Forest (RFEF) was constructed | 13 | operational map for River-flat Eucalypt Forest (RFEF) was constructed | ||
14 | to resolve long-standing issues surrounding its identification, | 14 | to resolve long-standing issues surrounding its identification, | ||
15 | location and extent within the NSW State Forest estate covered by the | 15 | location and extent within the NSW State Forest estate covered by the | ||
16 | coastal Integrated Forestry Operation Agreements. The map was | 16 | coastal Integrated Forestry Operation Agreements. The map was | ||
17 | constructed in two parts, with State Forests to the north of Sydney | 17 | constructed in two parts, with State Forests to the north of Sydney | ||
18 | being mapped in a separate process to those to the south of Sydney. We | 18 | being mapped in a separate process to those to the south of Sydney. We | ||
19 | did this to minimise the risk that relationships between regional | 19 | did this to minimise the risk that relationships between regional | ||
20 | vegetation communities and the TEC would be confounded or masked by | 20 | vegetation communities and the TEC would be confounded or masked by | ||
21 | geographical variation or other major ecological gradients, which | 21 | geographical variation or other major ecological gradients, which | ||
22 | might otherwise be a significant risk if we had treated the full | 22 | might otherwise be a significant risk if we had treated the full | ||
23 | latitudinal range of the TEC as a single study area. In total, we | 23 | latitudinal range of the TEC as a single study area. In total, we | ||
24 | assessed 1,218,000 hectares of State Forest across coastal NSW. This | 24 | assessed 1,218,000 hectares of State Forest across coastal NSW. This | ||
25 | consisted of 868,000 hectares of State Forest on the north coast and | 25 | consisted of 868,000 hectares of State Forest on the north coast and | ||
26 | more than 350,000 hectares of State Forest on the south coast. \r\nIn | 26 | more than 350,000 hectares of State Forest on the south coast. \r\nIn | ||
27 | both study areas, the project\u2019s Threatened Ecological Community | 27 | both study areas, the project\u2019s Threatened Ecological Community | ||
28 | (TEC) Reference Panel (the Panel) preceded the assessment process by | 28 | (TEC) Reference Panel (the Panel) preceded the assessment process by | ||
29 | reviewing the determination for RFEF and agreeing upon a set of | 29 | reviewing the determination for RFEF and agreeing upon a set of | ||
30 | diagnostic parameters for its identification. The Panel found that | 30 | diagnostic parameters for its identification. The Panel found that | ||
31 | RFEF is primarily defined by floristic plot data and that it is mostly | 31 | RFEF is primarily defined by floristic plot data and that it is mostly | ||
32 | located on coastal floodplains and associated alluvial landforms. | 32 | located on coastal floodplains and associated alluvial landforms. | ||
33 | \r\nFollowing on from these conclusions, we started the mapping | 33 | \r\nFollowing on from these conclusions, we started the mapping | ||
34 | process by mapping the distribution of floodplains and alluvial soils | 34 | process by mapping the distribution of floodplains and alluvial soils | ||
35 | and thus identifying possible areas of RFEF. For both the north and | 35 | and thus identifying possible areas of RFEF. For both the north and | ||
36 | the south coast we used an existing map of coastal landforms and | 36 | the south coast we used an existing map of coastal landforms and | ||
37 | geology in combination with several fine-scale models of alluvial | 37 | geology in combination with several fine-scale models of alluvial | ||
38 | landform features to determine the likely extent of floodplains and | 38 | landform features to determine the likely extent of floodplains and | ||
39 | alluvial soils within our study areas. \r\nWe used aerial photograph | 39 | alluvial soils within our study areas. \r\nWe used aerial photograph | ||
40 | interpretation (API) to assess the floristic and structural attributes | 40 | interpretation (API) to assess the floristic and structural attributes | ||
41 | of the vegetation cover found on our modelled alluvial environments, | 41 | of the vegetation cover found on our modelled alluvial environments, | ||
42 | and thus delineated polygons likely to contain RFEF. We also used API | 42 | and thus delineated polygons likely to contain RFEF. We also used API | ||
43 | to modify the boundaries of the modelled alluvial areas using a | 43 | to modify the boundaries of the modelled alluvial areas using a | ||
44 | prescribed list of eucalypt, casuarina and melaleuca species in | 44 | prescribed list of eucalypt, casuarina and melaleuca species in | ||
45 | combination with the interpretation of landform elements relevant to | 45 | combination with the interpretation of landform elements relevant to | ||
46 | alluvial and floodplain environments. \r\nWe then compiled floristic | 46 | alluvial and floodplain environments. \r\nWe then compiled floristic | ||
47 | plot data for all State Forest areas within our modelled alluvial | 47 | plot data for all State Forest areas within our modelled alluvial | ||
48 | landforms and API polygons. For both the north and the south coast the | 48 | landforms and API polygons. For both the north and the south coast the | ||
49 | floristic plot data was sourced from both existing flora surveys held | 49 | floristic plot data was sourced from both existing flora surveys held | ||
50 | in the OEH VIS database and from targeted flora surveys conducted | 50 | in the OEH VIS database and from targeted flora surveys conducted | ||
51 | specifically for this project. We compared these plots with those | 51 | specifically for this project. We compared these plots with those | ||
52 | previously assigned to flora communities listed in the determination | 52 | previously assigned to flora communities listed in the determination | ||
53 | of RFEF. Both dissimilarity-based methods and multivariate regression | 53 | of RFEF. Both dissimilarity-based methods and multivariate regression | ||
54 | methods were used for the comparison. The results of the comparison | 54 | methods were used for the comparison. The results of the comparison | ||
55 | were then used to assess the likelihood that the plots in State | 55 | were then used to assess the likelihood that the plots in State | ||
56 | forests belonged to one or more of the communities listed in the RFEF | 56 | forests belonged to one or more of the communities listed in the RFEF | ||
57 | determination. Following this, we developed a predictive statistical | 57 | determination. Following this, we developed a predictive statistical | ||
58 | model of the probability of occurrence of RFEF using plot data and a | 58 | model of the probability of occurrence of RFEF using plot data and a | ||
59 | selection of environmental and remote-sensing variables. For the north | 59 | selection of environmental and remote-sensing variables. For the north | ||
60 | coast, we used a Random Forest model, while for the south coast we | 60 | coast, we used a Random Forest model, while for the south coast we | ||
61 | used a Boosted Regression Tree model. \r\nTo create the operational | 61 | used a Boosted Regression Tree model. \r\nTo create the operational | ||
62 | map, we assigned every mapped API polygon to RFEF if appropriate based | 62 | map, we assigned every mapped API polygon to RFEF if appropriate based | ||
63 | on the plot data, over-storey and understorey attributes, landform | 63 | on the plot data, over-storey and understorey attributes, landform | ||
64 | features and modelled probabilities underlying each API polygon. | 64 | features and modelled probabilities underlying each API polygon. | ||
65 | \r\nWe mapped 3819 hectares of RFEF on the south coast and 198 | 65 | \r\nWe mapped 3819 hectares of RFEF on the south coast and 198 | ||
66 | hectares of RFEF on the north coast.\r\n\r\nOperational map for Swamp | 66 | hectares of RFEF on the north coast.\r\n\r\nOperational map for Swamp | ||
67 | Oak Floodplain Forest:\r\n\r\nThe operational map for Swamp Oak | 67 | Oak Floodplain Forest:\r\n\r\nThe operational map for Swamp Oak | ||
68 | Floodplain Forest (SOFF) was constructed to resolve long-standing | 68 | Floodplain Forest (SOFF) was constructed to resolve long-standing | ||
69 | issues surrounding its identification, location and extent within the | 69 | issues surrounding its identification, location and extent within the | ||
70 | NSW State Forest estate covered by the coastal Integrated Forestry | 70 | NSW State Forest estate covered by the coastal Integrated Forestry | ||
71 | Operation Agreements. The map was constructed in two parts, with State | 71 | Operation Agreements. The map was constructed in two parts, with State | ||
72 | Forests to the north of Sydney being mapped in a separate process to | 72 | Forests to the north of Sydney being mapped in a separate process to | ||
73 | those to the south of Sydney. We did this to minimise the risk that | 73 | those to the south of Sydney. We did this to minimise the risk that | ||
74 | relationships between regional vegetation communities and the TEC | 74 | relationships between regional vegetation communities and the TEC | ||
75 | would be confounded or masked by geographical variation or other major | 75 | would be confounded or masked by geographical variation or other major | ||
76 | ecological gradients, which might otherwise be a significant risk if | 76 | ecological gradients, which might otherwise be a significant risk if | ||
77 | we had treated the full latitudinal range of the TEC as a single study | 77 | we had treated the full latitudinal range of the TEC as a single study | ||
78 | area. In total, we assessed 1,218,000 hectares of State Forest across | 78 | area. In total, we assessed 1,218,000 hectares of State Forest across | ||
79 | coastal NSW. This consisted of 868,000 hectares of State Forest on the | 79 | coastal NSW. This consisted of 868,000 hectares of State Forest on the | ||
80 | north coast and more than 350,000 hectares of State Forest on the | 80 | north coast and more than 350,000 hectares of State Forest on the | ||
81 | south coast. \r\nIn both study areas, the project\u2019s Threatened | 81 | south coast. \r\nIn both study areas, the project\u2019s Threatened | ||
82 | Ecological Community (TEC) Reference Panel (the Panel) preceded the | 82 | Ecological Community (TEC) Reference Panel (the Panel) preceded the | ||
83 | assessment process by reviewing the determination for SOFF and | 83 | assessment process by reviewing the determination for SOFF and | ||
84 | agreeing upon a set of diagnostic parameters for its identification. | 84 | agreeing upon a set of diagnostic parameters for its identification. | ||
85 | The Panel found that SOFF is primarily defined by floristic plot data | 85 | The Panel found that SOFF is primarily defined by floristic plot data | ||
86 | and that it is mostly located on coastal floodplains and associated | 86 | and that it is mostly located on coastal floodplains and associated | ||
87 | alluvial landforms.\r\nFollowing on from these conclusions, we started | 87 | alluvial landforms.\r\nFollowing on from these conclusions, we started | ||
88 | the mapping process by mapping the distribution of floodplains and | 88 | the mapping process by mapping the distribution of floodplains and | ||
89 | alluvial soils and thus identifying possible areas of SOFF. For both | 89 | alluvial soils and thus identifying possible areas of SOFF. For both | ||
90 | the north and the south coast we used an existing map of coastal | 90 | the north and the south coast we used an existing map of coastal | ||
91 | landforms and geology in combination with several fine-scale models of | 91 | landforms and geology in combination with several fine-scale models of | ||
92 | alluvial landform features to determine the likely extent of | 92 | alluvial landform features to determine the likely extent of | ||
93 | floodplains and alluvial soils within our study areas.\r\nWe used | 93 | floodplains and alluvial soils within our study areas.\r\nWe used | ||
94 | aerial photograph interpretation (API) to assess floristic and | 94 | aerial photograph interpretation (API) to assess floristic and | ||
95 | structural attributes of the vegetation cover on our modelled alluvial | 95 | structural attributes of the vegetation cover on our modelled alluvial | ||
96 | environments, and thus delineated polygons likely to contain SOFF. We | 96 | environments, and thus delineated polygons likely to contain SOFF. We | ||
97 | also used API to modify the boundaries of the modelled alluvial areas | 97 | also used API to modify the boundaries of the modelled alluvial areas | ||
98 | using a prescribed list of casuarina and melaleuca species in | 98 | using a prescribed list of casuarina and melaleuca species in | ||
99 | combination with the interpretation of landform elements relevant to | 99 | combination with the interpretation of landform elements relevant to | ||
100 | alluvial and floodplain environments.\r\nWe then compiled floristic | 100 | alluvial and floodplain environments.\r\nWe then compiled floristic | ||
101 | plot data for all State Forest areas within our modelled alluvial | 101 | plot data for all State Forest areas within our modelled alluvial | ||
102 | landforms and API polygons. For both the north and the south coast the | 102 | landforms and API polygons. For both the north and the south coast the | ||
103 | floristic plot data was sourced from both existing flora surveys held | 103 | floristic plot data was sourced from both existing flora surveys held | ||
104 | in the OEH VIS database and from targeted flora surveys conducted | 104 | in the OEH VIS database and from targeted flora surveys conducted | ||
105 | specifically for this project. We compared these plots with those | 105 | specifically for this project. We compared these plots with those | ||
106 | previously assigned to flora communities listed in the determination | 106 | previously assigned to flora communities listed in the determination | ||
107 | of SOFF. Both dissimilarity-based methods and multivariate regression | 107 | of SOFF. Both dissimilarity-based methods and multivariate regression | ||
108 | methods were used for the comparison. The results of the comparison | 108 | methods were used for the comparison. The results of the comparison | ||
109 | were then used to assess the likelihood that the plots in State | 109 | were then used to assess the likelihood that the plots in State | ||
110 | forests belonged to one or more of the communities listed in the SOFF | 110 | forests belonged to one or more of the communities listed in the SOFF | ||
111 | determination.\r\nTo create the operational map, we assigned every | 111 | determination.\r\nTo create the operational map, we assigned every | ||
112 | mapped API polygon to SOFF based on the plot data, over-storey and | 112 | mapped API polygon to SOFF based on the plot data, over-storey and | ||
113 | understorey attributes, landform features and model output underlying | 113 | understorey attributes, landform features and model output underlying | ||
114 | each API polygon. \r\nIn total, we mapped approximately 272 hectares | 114 | each API polygon. \r\nIn total, we mapped approximately 272 hectares | ||
115 | of SOFF across our full study area.\r\n\r\nOperational map for Swamp | 115 | of SOFF across our full study area.\r\n\r\nOperational map for Swamp | ||
116 | Sclerophyll Forest:\r\n\r\nThe operational map for Swamp Sclerophyll | 116 | Sclerophyll Forest:\r\n\r\nThe operational map for Swamp Sclerophyll | ||
117 | Forest (SSF) was constructed to resolve long-standing issues | 117 | Forest (SSF) was constructed to resolve long-standing issues | ||
118 | surrounding its identification, location and extent within the NSW | 118 | surrounding its identification, location and extent within the NSW | ||
119 | State Forest estate covered by the coastal Integrated Forestry | 119 | State Forest estate covered by the coastal Integrated Forestry | ||
120 | Operation Agreements. The map was constructed in two parts, with State | 120 | Operation Agreements. The map was constructed in two parts, with State | ||
121 | Forests to the north of Sydney being mapped in a separate process to | 121 | Forests to the north of Sydney being mapped in a separate process to | ||
122 | those to the south of Sydney. We did this to minimise the risk that | 122 | those to the south of Sydney. We did this to minimise the risk that | ||
123 | relationships between regional vegetation communities and the TEC | 123 | relationships between regional vegetation communities and the TEC | ||
124 | would be confounded or masked by geographical variation or other major | 124 | would be confounded or masked by geographical variation or other major | ||
125 | ecological gradients, which might otherwise be a significant risk if | 125 | ecological gradients, which might otherwise be a significant risk if | ||
126 | we had treated the full latitudinal range of the TEC as a single study | 126 | we had treated the full latitudinal range of the TEC as a single study | ||
127 | area. In total, we assessed 1,218,000 hectares of State Forest across | 127 | area. In total, we assessed 1,218,000 hectares of State Forest across | ||
128 | coastal NSW. This consisted of 868,000 hectares of State Forest on the | 128 | coastal NSW. This consisted of 868,000 hectares of State Forest on the | ||
129 | north coast and more than 350,000 hectares of State Forest on the | 129 | north coast and more than 350,000 hectares of State Forest on the | ||
130 | south coast.\r\nIn both study areas, the project\u2019s Threatened | 130 | south coast.\r\nIn both study areas, the project\u2019s Threatened | ||
131 | Ecological Community (TEC) Reference Panel (the Panel) preceded the | 131 | Ecological Community (TEC) Reference Panel (the Panel) preceded the | ||
132 | assessment process by reviewing the determination for SSF and agreeing | 132 | assessment process by reviewing the determination for SSF and agreeing | ||
133 | upon a set of diagnostic parameters for its identification. The Panel | 133 | upon a set of diagnostic parameters for its identification. The Panel | ||
134 | found that SSF is primarily defined by floristic plot data and that it | 134 | found that SSF is primarily defined by floristic plot data and that it | ||
135 | is mostly located on coastal floodplains and associated alluvial | 135 | is mostly located on coastal floodplains and associated alluvial | ||
136 | landforms.\r\nFollowing on from these conclusions, we started the | 136 | landforms.\r\nFollowing on from these conclusions, we started the | ||
137 | mapping process by mapping the distribution of floodplains and | 137 | mapping process by mapping the distribution of floodplains and | ||
138 | alluvial soils and thus identifying possible areas of SSF. For both | 138 | alluvial soils and thus identifying possible areas of SSF. For both | ||
139 | the north and the south coast we used an existing map of coastal | 139 | the north and the south coast we used an existing map of coastal | ||
140 | landforms and geology in combination with several fine-scale models of | 140 | landforms and geology in combination with several fine-scale models of | ||
141 | alluvial landform features to determine the likely extent of | 141 | alluvial landform features to determine the likely extent of | ||
142 | floodplains and alluvial soils within our study areas. \r\nWe used | 142 | floodplains and alluvial soils within our study areas. \r\nWe used | ||
143 | aerial photograph interpretation (API) to assess the floristic and | 143 | aerial photograph interpretation (API) to assess the floristic and | ||
144 | structural attributes of the vegetation cover on our modelled alluvial | 144 | structural attributes of the vegetation cover on our modelled alluvial | ||
145 | environments, and thus delineated polygons likely to contain SSF. We | 145 | environments, and thus delineated polygons likely to contain SSF. We | ||
146 | also used API to modify the boundaries of the modelled alluvial areas | 146 | also used API to modify the boundaries of the modelled alluvial areas | ||
147 | using a prescribed list of eucalypt, casuarina and melaleuca species | 147 | using a prescribed list of eucalypt, casuarina and melaleuca species | ||
148 | in combination with the interpretation of landform elements relevant | 148 | in combination with the interpretation of landform elements relevant | ||
149 | to alluvial and floodplain environments.\r\nWe then compiled floristic | 149 | to alluvial and floodplain environments.\r\nWe then compiled floristic | ||
150 | plot data for all State Forest areas within our modelled alluvial | 150 | plot data for all State Forest areas within our modelled alluvial | ||
151 | landforms and API polygons. For both the north and the south coast the | 151 | landforms and API polygons. For both the north and the south coast the | ||
152 | floristic plot data was sourced from both existing flora surveys held | 152 | floristic plot data was sourced from both existing flora surveys held | ||
153 | in the OEH VIS database and from targeted flora surveys conducted | 153 | in the OEH VIS database and from targeted flora surveys conducted | ||
154 | specifically for this project. We compared these plots with those | 154 | specifically for this project. We compared these plots with those | ||
155 | previously assigned to flora communities listed in the determination | 155 | previously assigned to flora communities listed in the determination | ||
156 | of SSF. Both dissimilarity-based methods and multivariate regression | 156 | of SSF. Both dissimilarity-based methods and multivariate regression | ||
157 | methods were used for the comparison. The results of the comparison | 157 | methods were used for the comparison. The results of the comparison | ||
158 | were then used to assess the likelihood that the plots in State | 158 | were then used to assess the likelihood that the plots in State | ||
159 | forests belonged to one or more of the communities listed in the SSF | 159 | forests belonged to one or more of the communities listed in the SSF | ||
160 | determination.\r\nFollowing this, we developed a predictive | 160 | determination.\r\nFollowing this, we developed a predictive | ||
161 | statistical model of the probability of occurrence of SSF using plot | 161 | statistical model of the probability of occurrence of SSF using plot | ||
162 | data and a selection of environmental and remote-sensing variables. | 162 | data and a selection of environmental and remote-sensing variables. | ||
163 | For the north coast, we used a Random Forest model, while for the | 163 | For the north coast, we used a Random Forest model, while for the | ||
164 | south coast we used a Boosted Regression Tree model.\r\nTo create the | 164 | south coast we used a Boosted Regression Tree model.\r\nTo create the | ||
165 | operational map, we assigned every mapped API polygon to SSF if | 165 | operational map, we assigned every mapped API polygon to SSF if | ||
166 | appropriate based on the plot data, over-storey and understorey | 166 | appropriate based on the plot data, over-storey and understorey | ||
167 | attributes, landform features and modelled probabilities underlying | 167 | attributes, landform features and modelled probabilities underlying | ||
168 | each API polygon. In total, we mapped approximately 1131 hectares of | 168 | each API polygon. In total, we mapped approximately 1131 hectares of | ||
169 | SSF across out study area.\r\n\r\nOperational map for Subtropical | 169 | SSF across out study area.\r\n\r\nOperational map for Subtropical | ||
170 | Coastal Floodplain Forest:\r\n\r\nThe operational map for Subtropical | 170 | Coastal Floodplain Forest:\r\n\r\nThe operational map for Subtropical | ||
171 | Coastal Floodplain Forest (SCFF) was constructed to resolve | 171 | Coastal Floodplain Forest (SCFF) was constructed to resolve | ||
172 | long-standing issues surrounding its identification, location and | 172 | long-standing issues surrounding its identification, location and | ||
173 | extent within the NSW State Forest estate covered by the eastern | 173 | extent within the NSW State Forest estate covered by the eastern | ||
174 | Regional Forest Agreements. The project\u2019s Threatened Ecological | 174 | Regional Forest Agreements. The project\u2019s Threatened Ecological | ||
175 | Community (TEC) Reference Panel (the Panel) reviewed the determination | 175 | Community (TEC) Reference Panel (the Panel) reviewed the determination | ||
176 | for SCFF in conjunction with the determinations of three other TECs | 176 | for SCFF in conjunction with the determinations of three other TECs | ||
177 | associated with coastal floodplain environments. The Panel agreed that | 177 | associated with coastal floodplain environments. The Panel agreed that | ||
178 | SCFF is primarily defined by floristic plot data and that it is mostly | 178 | SCFF is primarily defined by floristic plot data and that it is mostly | ||
179 | located on coastal floodplains and associated alluvial | 179 | located on coastal floodplains and associated alluvial | ||
180 | landforms.\r\nThe operational map was constructed in several stages. | 180 | landforms.\r\nThe operational map was constructed in several stages. | ||
181 | Firstly, we identified candidate areas for SCFF by mapping the | 181 | Firstly, we identified candidate areas for SCFF by mapping the | ||
182 | distribution of floodplains and alluvial soils. To do this we used an | 182 | distribution of floodplains and alluvial soils. To do this we used an | ||
183 | existing map of coastal landforms and geology in combination with | 183 | existing map of coastal landforms and geology in combination with | ||
184 | several fine-scale models of alluvial landform features to determine | 184 | several fine-scale models of alluvial landform features to determine | ||
185 | the likely extent of floodplains and alluvial soils in our study area. | 185 | the likely extent of floodplains and alluvial soils in our study area. | ||
186 | \r\nSecondly, we compiled floristic plot data for State Forest areas | 186 | \r\nSecondly, we compiled floristic plot data for State Forest areas | ||
187 | within these alluvial landforms. The floristic plot data was sourced | 187 | within these alluvial landforms. The floristic plot data was sourced | ||
188 | from both existing flora surveys held in the OEH VIS database and from | 188 | from both existing flora surveys held in the OEH VIS database and from | ||
189 | targeted flora surveys conducted specifically for this project. We | 189 | targeted flora surveys conducted specifically for this project. We | ||
190 | compared these plots with those assigned to previously defined | 190 | compared these plots with those assigned to previously defined | ||
191 | communities listed in the determinations for SCFF. Both | 191 | communities listed in the determinations for SCFF. Both | ||
192 | dissimilarity-based methods and multivariate regression methods were | 192 | dissimilarity-based methods and multivariate regression methods were | ||
193 | used for the comparison. The results of the comparison were then used | 193 | used for the comparison. The results of the comparison were then used | ||
194 | to assess the likelihood that plots in State forests belonged to one | 194 | to assess the likelihood that plots in State forests belonged to one | ||
195 | or more of the communities listed in the determination.\r\nThirdly, we | 195 | or more of the communities listed in the determination.\r\nThirdly, we | ||
196 | used aerial photograph interpretation (API) to assess both floristic | 196 | used aerial photograph interpretation (API) to assess both floristic | ||
197 | and structural attributes found on the modelled alluvial and related | 197 | and structural attributes found on the modelled alluvial and related | ||
198 | environments. We also used API to modify the boundaries of the | 198 | environments. We also used API to modify the boundaries of the | ||
199 | modelled alluvial areas using a prescribed list of eucalypt, casuarina | 199 | modelled alluvial areas using a prescribed list of eucalypt, casuarina | ||
200 | and melaleuca species in combination with the interpretation of | 200 | and melaleuca species in combination with the interpretation of | ||
201 | landform elements relevant to alluvial and floodplain | 201 | landform elements relevant to alluvial and floodplain | ||
202 | environments.\r\nFourthly, we used plot data and a selection of | 202 | environments.\r\nFourthly, we used plot data and a selection of | ||
203 | environmental and remote-sensing variables to develop a Random Forest | 203 | environmental and remote-sensing variables to develop a Random Forest | ||
204 | (RF) model of the probability of occurrence of SCFF.\r\nTo create the | 204 | (RF) model of the probability of occurrence of SCFF.\r\nTo create the | ||
205 | operational map, we assigned every mapped API polygon to SCFF if | 205 | operational map, we assigned every mapped API polygon to SCFF if | ||
206 | appropriate based on the plot data, over-storey and understorey | 206 | appropriate based on the plot data, over-storey and understorey | ||
207 | attributes, landform features and modelled probabilities underlying | 207 | attributes, landform features and modelled probabilities underlying | ||
208 | each API polygon. \r\nIn total, we mapped approximately 11,050 | 208 | each API polygon. \r\nIn total, we mapped approximately 11,050 | ||
209 | hectares of Subtropical Coastal Floodplain Forest. The majority of the | 209 | hectares of Subtropical Coastal Floodplain Forest. The majority of the | ||
210 | mapped SCFF was located between Grafton and Casino.\r\n\r\nOperational | 210 | mapped SCFF was located between Grafton and Casino.\r\n\r\nOperational | ||
211 | TEC Mapping have been derived by API at a viewing scale between 1-4000 | 211 | TEC Mapping have been derived by API at a viewing scale between 1-4000 | ||
212 | using ADS40 50 cm pixel imagery and 1 m derived LIDAR DEM grids for | 212 | using ADS40 50 cm pixel imagery and 1 m derived LIDAR DEM grids for | ||
213 | floodplain EECs.", | 213 | floodplain EECs.", | ||
214 | "owner_org": "83a21590-19cd-49af-a188-f06f5d4fe231", | 214 | "owner_org": "83a21590-19cd-49af-a188-f06f5d4fe231", | ||
215 | "private": false, | 215 | "private": false, | ||
216 | "revision_id": "30adc486-706f-44b1-aac7-4c9c87472398", | 216 | "revision_id": "30adc486-706f-44b1-aac7-4c9c87472398", | ||
217 | "state": "active", | 217 | "state": "active", | ||
218 | "title": "Assessment of North Coast Floodplain TECs on NSW Crown | 218 | "title": "Assessment of North Coast Floodplain TECs on NSW Crown | ||
219 | Forest Estate", | 219 | Forest Estate", | ||
220 | "type": "dataset", | 220 | "type": "dataset", | ||
221 | "url": "", | 221 | "url": "", | ||
222 | "version": null | 222 | "version": null | ||
223 | } | 223 | } |