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 60 Acid Sulfate Soils Acid sulfate soils on Auvergne are presented in Figure 9.3. Land evaluation for acid sulfate soils is rated purely on the likely presence or absence. Where present, they are rated as having a V (very high) limitation. Table 9.8 Acid sulfate soils Limitation Class Limitation Description Land Units Area (km2) V (very high) Acid sulfate soils Soils likely to present an acid sulfate soil risk. 10iA, 10iA/10i2A 56 Saline Soils Soil salinity classes are presented in Table 9.9 and are based on the data provided in Table 7.6. Soil is considered to be saline and high risk if sodium chloride, magnesium and calcium sulfates are recorded in the top 50 cm of the profile. Salinity levels recorded in only the subsoil (i.e > 50cm) are generally considered to be less perilous provided the soil remains undisturbed. Table 9.9 Salinity ratings for soil based on ECe (reproduced from Hazelton and Murphy 2016) Limitation class ECe (dS/m) Salinity class Land Units*** L < 2 Non-saline 1aV, 1gA, 2gV, 2g1A, 4g1V, 4g4V, 4g5V, 4g6V, 4g7V, 5c3V, 5c4V, 5c5A, 5gA, 5g1V, 5g4A, 5g5V, 5g6V, 5g9V, 5g10A, 5g11V, 5h3A, 5h5V, 6c4A, 6c11A, 6c12V, 6c13A, 6c14A**, 6d4V, 6g4A, 6g7A, 6g10A, 6h1A, 8lV, 8l1A, 8l2V, 8l3A, 8l11A, 8l12A, 9m5A L 2 - 4 Slightly saline - M 4 - 8 Moderately saline 6c8A*, 7l2A**, 7l11A**, 8l6V** H 8 - 16 Highly saline 7lA**, 7l5A**, 8l5V**, 8l13A** V > 16 Extremely saline 8l4A*, 10iA*, 10iA/10i2A* * Land units with soils that can be saline in the top 50 cm of the soil profile. In the case of Land Unit 8l4A extreme soil salinity only occurs in areas adjacent to the Victoria River (see site 67). ** Land units with soils that can be saline in the subsoil or from >50 cm of the soil profile. *** The salinity class of land units in Table 9.9 should not be used to map the extent of salinity (see 7.3 Saline Soils). file://pgb-bas01/bas_data/spatial/Working/Land_veg/Napier%20projects/AUVERGNE/Report/Draft%20Report/Report_DN_Draft%20_LU%20page%20edit.docx#figure93