Land Resources of Auvergne Station
A supplement to the Land Resources of the Victoria River District
Napier, Diane; Edmeades, Bart; Lynch, Brian; McGregor, Robert; Northern Territory. Department of Environment and Natural Resources
E-Publications; E-Books; PublicationNT; Jul-18
Auvergne Station; NT Portion 2676; Victoria River Downs; Victoria River District
This report for Auvergne Station is a supplement to Land Resources of the Victoria River District (2012) and completes the land resource assessment of the district which covers 24 properties and approximately 78 760 km² of pastoral land. Land unit mapping at 1:100 000 describes the landforms, soils and vegetation in the district.
Made available via the Publications (Legal Deposit) Act 2004 (NT)
Table of contents; 1. Introduction; 2. Previous mapping; 3. Survey methodology and data collection; 4. Lithology; 5. Landform; 6. Soil; 7. Soil physical and chemical characteristics; 8. Vegetation; 9. Land evaluation; 10. Soil erosion; 11. Land unit descriptions; 12. References; Appendices 1 - 12.
Soils -- Northern Territory -- Auvergne Station; Land use -- Northern Territory -- Auvergne Station; Geology -- Northern Territory -- Auvergne Station; land resource assessment; land units; soil landscapes; vegetation communities
Northern Territory Government
204 pages ; colour photographs, maps, figures, tables ; 30 cm.
Attribution International 4.0 (CC BY 4.0)
Northern Territory Government
http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=E3F20A909A8123ADE040CD9B21446CC0; http://hdl.handle.net/10070/245323 [Land resources of the Victoria River District]
Land Resources of Auvergne Station A supplement to the Land Resources of the Victoria River District 9 Table 3.1 Auvergne site breakdown Site type Description Number of sites Field sites (this project) Landscape description, soil morphology, vegetation floristic and structural information per strata. 95 Analytical sites Soil profiles sampled for chemical and physical analyses 35 Acid Sulfate soil sites Soil profiles sampled to test for Chromium Reducible Sulfur 2 Road notes General landform description, soil notes including basic ASC, vegetation notes including brief community description and limited floristic and structural information 426 Historic sites Data from past surveys 183 Soil Landscapes Landform is used to simplify and separate the landscape because it primarily influences the soil and vegetation. Further division then takes place according to the parent material and specific soil and vegetation properties. Soil and landform descriptions are in accordance to the National Committee on Soil and Terrain (2009) and The Australian Soil Classification (Isbell and NCST 2016). Soil investigations were undertaken using a trailer mounted EZIPROBE Centurian soil coring rig. Soil profiles were extracted with minimal disturbance using a 38 mm internal diameter intact cores to a depth of 1.5 m or shallower if hard rock or gravel prohibited further penetration. The profiles were described in the field excluding pH that was tested once back in the office. Sites collected during the helicopter work were hand augered and were collected to a maximum depth of 1.2 m (auger length was restricted to helicopter specifications). The auguring process can disturb the soil core and make the distinction of some properties such as structure, mottles and horizons difficult. Profile depth was often restricted by impenetrable gravel and substrate rock. Vegetation Vegetation data was collected and classified in accordance to the National Vegetation Information System (NVIS), Executive Steering Committee for Australian Vegetation Information (ESCAVI 2003) and Northern Territory Guidelines and Field Methodology for Vegetation Survey and Mapping (Brocklehurst et al. 2007). Description and summary of common Northern Territory vegetation structures using this scheme are found in Appendix 8. Further definitions for growth form, cover values and height ranges are summarised in Appendices 9 - 11. Vegetation site data was collected in a 20 m 20 m quadrat around the periphery of the soil profile site. Stratum cover and species dominance was estimated using crown cover for the upper strata and percentage cover for the mid and ground strata. Average tree heights for the upper and
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