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 78 Sideslopes Land Unit: 2g1A Lithology: Sandstone Sites: 2 Area: 212 km2 Landform General Description Steep sandstone scarps and sideslopes; abundant surface rock and boulders; Eucalyptus brevifolia low open woodland; very shallow soils Slopes: 10 - 30% Parent Material: Sandstone Surface Gravel: > 50% Rock Outcrop: 0% Drainage: Well drained Runoff: Rapid Soil Most Common Soil: Leptic Rudosols of sites: 1 Common Soil Characteristics Surface texture class: Loamy Subsoil texture class: - Soil colour: Brown Surface soil gravels: > 50% Subsoils gravels: - Soil depth: < 0.25 m Field surface pH: 5.5 - 6.5 Field subsoil pH: - Other soils described: Brown Kandosols, moderately gravelly, clay loamy, very shallow Vegetation Common vegetation community: of sites Pasture rating Av crown cover % Av height (m) Eucalyptus brevifolia low open woodland 1 Poor 12 6 Erythrophleum chlorostachys, Terminalia canescens, Corymbia ferruginea low open woodland 1 Poor 5 4.5 Other communities: Stratum Frequency of dominant species Frequency of other common species Upper stratum Eucalyptus brevifolia, Erythrophleum chlorostachys 50% Terminalia canescens, Cochlospermum fraseri 100%, Corymbia ferruginea 50% Mid stratum Terminalia canescens, Erythrophleum chlorostachys 100% Cochlospermum fraseri, Calytrix exstipulata 50% Ground stratum Sehima nervosum, Sorghum stipoideum, 100%, Triodia bitextura 50% Eriachne obtusa 100%, Schizachyrium fragile, Grewia retusifolia, Eriachne ciliata, Heteropogon contortus Erythrophleum chlorostachys 50% Land Evaluation Well drained Very shallow soils Excessive slopes Abundant surface rock and boulders Sensitive habitat High erosion risk: Soils have high levels of fine sand however are not dispersive. Excessive slopes and rapid surface water flow. Abundant surface rock (rock armour) and low grazing pressure minimise the extreme erosion risk. If disturbance is unavoidable then detailed erosion and sediment control planning is essential. These sandstone habitats may contain plant assemblages and species that are fire sensitive. Small semi-deciduous/deciduous rainforest pockets and vine thickets can occur on rugged dissected margins, steep skeletal slopes, crevices and rocky screes.