Territory Stories

Land Resources of Auvergne Station

Details:

Title

Land Resources of Auvergne Station

Other title

A supplement to the Land Resources of the Victoria River District

Creator

Napier, Diane; Edmeades, Bart; Lynch, Brian; McGregor, Robert; Northern Territory. Department of Environment and Natural Resources

Editor

Hill, J.V.

Collection

E-Publications; E-Books; PublicationNT; Jul-18

Date

2018-06-30

Location

Auvergne Station; NT Portion 2676; Victoria River Downs; Victoria River District

Description

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.

Notes

Made available via the Publications (Legal Deposit) Act 2004 (NT)

Table of contents

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.

Language

English

Subject

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

Publisher name

Northern Territory Government

Place of publication

Palmerston

Series

Jul-18

Format

204 pages ; colour photographs, maps, figures, tables ; 30 cm.

File type

application/pdf

ISBN

9781743501498

Use

Attribution International 4.0 (CC BY 4.0)

Copyright owner

Northern Territory Government

License

https://creativecommons.org/licenses/by/4.0/

Related links

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]

Parent handle

https://hdl.handle.net/10070/300258

Citation address

https://hdl.handle.net/10070/378762

Page content

Land Resources of Auvergne Station A supplement to the Land Resources of the Victoria River District 63 Table 9.10 Land unit Erosion risk classification and extent km Limitation Erosion risk Erosion risk class Land units Extent km2 L Soils at low risk due to minimal slopes, slow runoff, low land use accessibility and generally low grazing pressure Low 1aV, 1gA, 9m5A 312 M Soils at risk due to high levels of fine sand and/or silt and moderate grazing pressure Low/Moderate 6c11A, 6c12V, 8l12A 593 Moderate 6d4V, 6g10A, 7lA, 7l5A H Soils at high risk due to high levels of fine sand and/or silt, substantial or excessive slopes and grazing pressure Moderate/High 6c8A 1 929 High 2gV, 2g1A, 4g1V, 4g4V, 4g5V, 4g6V, 4g7V, 5c3V, 5gA, 5g4A, 5g5V, 5g6V, 5g9V, 5g10A, 5g11A, 6c4A, 6c13A, 6c14A, 6g4A, 6g7A, 6h1A, V Soils at very high risk due to high levels of fine sand and/or silt, and/or moderate to extreme sodicity and grazing pressure Very high 5c4V, 5c5A, 5g1V, 5h3A, 5h5V, 7l2A, 7l11A, 8lV, 8l1A, 8l2V, 8l4A, 8l5V, 8l6V, 8l11A, 8l13A 1 288 E Soils at extreme risk due to extreme sodicity and dispersibility, high and extreme salinity, and/or acid sulfate soils Extreme 8l3A, 10iA, 10iA/10i2A 141 Low Erosion Risk Land units: 1aV, 1gA, 9m5A Plateau surfaces (1aV, 1gA) are generally level or gently undulating landscapes where landscape features such as steep sideslopes and rugged terrain restricts access by cattle and people. Grazing pressure is low due to unpalatable pastures. The plateaux also generally have abundant surface rock and stone acting as rock armour that provide a protective layer to the surface soil. This helps to shield the surface from high intensity rainfall when vegetation may have been lost to fire particularly late in the season. Land unit (9m5A) is an internal land draining system and includes swamps and drainage depressions. Although these units can be targeted by stock for water and feed they are generally not prone to high erosion risk because the surrounding landscape is by comparison more elevated. Although low risk, these landscapes will require erosion and sediment control planning for any development or infrastructure purpose. Moderate Erosion Risk Land units: 6c11A, 6c12A, 6d4V, 6g10A, 7lA, 7l5A, 8l12A These are mostly colluvial plains (6c11A, 6c12A) with low slopes, minimal incision features, moderate grazing pressure from stock and are considered to be relatively stable. The surrounding landscape is generally level to gently undulating plains so water flow is not rapid. There are small areas of level alluvial plains with cracking clays (7l5A). These landscapes


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