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 112 Drainage Systems Land Unit: 8lV Lithology: Alluvium Sites: 43 Area: 39 km2 Landform General Description River systems and watercourses; Corymbia bella or Eucalyptus camaldulensis low to mid open woodland; variable soils Slopes: 0 - 3% Parent Material: Alluvium Surface Gravel: < 10% Rock Outcrop: 0% Drainage: Imperfectly to poorly drained Runoff: Moderately rapid Soil Most Common Soil: Variable (Red Kandosols and Dermosols) Common Soil Characteristics Surface texture class: Clay Loamy Subsoil texture class Clayey Soil colour: Red Surface soil gravels: Nil Subsoils gravels Nil Soil depth: Variable Field surface pH: 7.5 - 8.5 Field subsoil pH: 8.5 - 9.5 Other soils described: Calcarosols, Tenosols, Vertosols and Rudosols Vegetation Common vegetation community: of sites Pasture rating Corymbia bella low and mid open woodland 10 Moderate Eucalyptus camaldulensis low and mid open woodland 9 Moderate Other communities: Eucalyptus microtheca low and mid open woodland, Lophostemon grandiflorus open forest, Melaleuca bracteata low woodland, Terminalia platyphylla mid woodland, Mixed spp. mid tussock grassland Stratum Frequency of dominant species Frequency of other common species Upper stratum Eucalyptus camaldulensis 45%, Corymbia bella 41%, Eucalyptus microtheca 24% Corymbia terminalis 36%, Bauhinia cunninghamii 29%, Terminalia platyphylla 24%, Lophostemon grandiflorus 14% Mid stratum Bauhinia cunninghamii 41%, Carissa lanceolata 33%, Hakea arborescens 24% Vachellia farnesiana 21%, Eucalyptus microtheca, Corymbia bella, Terminalia platyphylla 14%, Excoecaria parvifolia 12% Ground stratum Chrysopogon fallax 57%, Dichanthium fecundum 45%, Heteropogon contortus 40%, Brachyachne convergens 31% Sehima nervosum 17%, Enneapogon purpurascens, Aristida latifolia 12%, Cenchrus ciliaris 10% Land Evaluation Imperfectly drained banks. Seasonally flooded Very deep soils Gentle slopes No rock outcrop Significant habitat Very high erosion risk: Disturbance of creek lines and watercourses should always be avoided. These areas are extremely fragile. Infrastructure such as tracks and fence lines, loss of vegetation or fire causes stream bank erosion. If disturbance is unavoidable detailed erosion and sediment control planning is essential. Riparian areas provide critical habitats for a range of wildlife, protect river and creek systems from erosion and support healthy waterways. They can contain small monsoon rainforest patches. Soils in river systems, creeks and channels are always highly variable. On Auvergne Station small drainage lines will often have Melaleuca viridiflora communities on them.