Guidelines and Field Methodology for Vegetation Survey and Mapping

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SECTION A: GUIDELINES A preliminary list of 367 DVT was generated from published and unpublished vegetation survey reports (Brocklehurst & Gibbons, 2003). A number of other States already have listings of DVT at either the association (NVIS Level V) or sub-association (NVIS Level VI). Advantages of the DVT concept will: • Provide a systematic taxonomy of NT vegetation communities and associated environmental attributes, distribution and conservation status; • Assist in vegetation mapping once criteria is developed for the recognition of vegetation communities in the field (i.e. full site characterisation wont be required); • Assist in defining national vegetation types and provide equivalence across borders; • Potentially assist in developing benchmarks for vegetation condition monitoring (i.e. change in species composition, structural parameters, threatening processes etc.); • Update the 112 vegetation community descriptions for the Vegetation Survey of the NT by Wilson et al. (1990), and • Link to the NRVIS polygon database to provide more detail and allow a seamless integration of NT vegetation surveys and national datasets. A database for storage of NT DVT has been developed and is based primarily on the New South Wales Royal Botanic Gardens and Queensland Herbarium model. A technical report is being produced to explain the database and entry methods. The process of compiling the DVT from source data highlighted the need for adopting a standard technique for analysis and written descriptions of vegetation communities in the NT. Many of the written descriptions in survey reports are data deficient and do not reflect the detail collected in field data. Many of the descriptions could be NVIS compliant provided reports included all the detail available. DVT will continually be enhanced as the knowledge base expands. For attributes contained in the DVT database refer to Appendix 10. 9.4 Ecosystem Regionalisation Regional ecosystems were defined by Sattler and Williams (1999) as vegetation communities in a bioregion that are consistently associated with a particular combination of geology, landform and soil. An interim regionalisation has been produced for the NT based on the Queensland approach by integrating soils, landform and geology with the NVIS Version 3.0 vegetation dataset. However a new data set, the Integrated Land Systems of the NT, will prove useful as a base for future attempts at ecosystem regionalisation. Applications of regional ecosystems are generally for management purposes rather than vegetation mapping per se. For example, the same vegetation community could be split into a number of regional ecosystems based on other landscape features (i.e. soil & landform). Ecosystem regionalisation in the NT will place individual vegetation surveys into a broader context of environmental and landscape parameters. Compared with the Queensland regional ecosystem definitions (Neldner et al., 1999) there is presently no ecosystem regionalisation for the NT. For regional ecosystems of Queensland go to: http://www.epa.qld.gov.au/nature_conservation/biodiversity/regional_ecosystems/ Northern Territory Guidelines and Field Methodology for Vegetation Survey and Mapping 26
SECTION A: GUIDELINES 9.5 Web Server Data Input Forms A future development is the construction of input forms using Oracle Application Express to allow external entry into various vegetation databases via the web and direct entry into Oracle tables. This would potentially overcome current systems of using proprietary software such as Info Mapper required on individual workstations. For example, a form can be developed to mirror current field data proformas allowing data entry to proceed as per field sheets An advantage of this development once instigated includes simpler and more efficient data entry and would allow external data entry. It may also assist with data acquisition across agencies. The development of data input forms is envisaged for the RAVS and DVT’s databases. Future forms could also be progressed for the NRVIS system provided preliminary trials are successful. Northern Territory Guidelines and Field Methodology for Vegetation Survey and Mapping 27
Page 1: DEPARTMENT OF NATURAL RESOURCES,ENV
Page 4 and 5: PREFACE This document describes the
Page 6 and 7: CONTENTS PREFACE ..................
Page 8 and 9: GLOSSARY...........................
Page 10 and 11: ACRONYMS ANZLIC BRS DEH DEM DVT ERI
Page 13 and 14: SECTION A: GUIDELINES 1.0 INTRODUCT
Page 15 and 16: SECTION A: GUIDELINES 3.0 PRINCIPLE
Page 17 and 18: SECTION A: GUIDELINES Currently, th
Page 19 and 20: SECTION A: GUIDELINES 4.0 MAPPING P
Page 21 and 22: SECTION A: GUIDELINES Table 3. Data
Page 23 and 24: SECTION A: GUIDELINES Table 4. The
Page 25 and 26: SECTION A: GUIDELINES S Y Z C U Shr
Page 27 and 28: SECTION A: GUIDELINES The structura
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Page 31 and 32: SECTION A: GUIDELINES Resource Asse
Page 33 and 34: SECTION A: GUIDELINES DATA ENTRY Ma
Page 35 and 36: SECTION A: GUIDELINES 9.0 FUTURE DE
Page 37: SECTION A: GUIDELINES Satellite pla
Page 43 and 44: SECTION B: FIELD METHODOLOGY 1.0 IN
Page 45 and 46: SECTION B: FIELD METHODOLOGY 2.2 Si
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Page 53 and 54: SECTION B: FIELD METHODOLOGY Under
Page 55 and 56: SECTION B: FIELD METHODOLOGY For la
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Page 59 and 60: SECTION B: FIELD METHODOLOGY 5.1 Ha
Page 61 and 62: SECTION B: FIELD METHODOLOGY Soil d
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Page 65 and 66: SECTION B: FIELD METHODOLOGY Broad
Page 67 and 68: SECTION B: FIELD METHODOLOGY 5.3 Fo
Page 69 and 70: GLOSSARY CSR Datum Distribution Div
Page 71 and 72: GLOSSARY Overstorey Physiognomy Pla
Page 73 and 74: REFERENCES REFERENCES Abed, T. & St
Page 75 and 76: REFERENCES Meagher, D. (1991) The M
Page 77: APPENDICES
Page 80 and 81: APPENDICES APPENDIX 2: Overview of
Page 82 and 83: APPENDICES APPENDIX 4: Height Class
Page 84 and 85: APPENDICES TUSSOCK GRASS Closed Tus
Page 86 and 87: APPENDICES APPENDIX 6 (continued) D
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APPENDICES APPENDIX 6 (continued) G
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APPENDICES APPENDIX 8: Preliminary
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APPENDICES APPENDIX 10: Definitive
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Disturbance, Succession, adjoining
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APPENDICES APPENDIX 11: IUCN Red Li
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APPENDICES APPENDIX 13: NT Weeds Da
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APPENDICES APPENDIX 14 (continued)
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APPENDICES APPENDIX 16: Field Data
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APPENDICES APPENDIX 17: Field Data
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APPENDICES APPENDIX 17 (continued)
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APPENDICES APPENDIX 19: NT Site Pro
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