GEOMORPHOLOGY REPORT - CRC LEME
GEOMORPHOLOGY REPORT - CRC LEME GEOMORPHOLOGY REPORT - CRC LEME
Uplands Murray River Alluvial terrace Oldest floodplain meander belt Figure 9. Vertical view of part of LIDAR DEM showing geomorphic elements. Width of image ~5 km. North to top. The above geomorphic units correlate well with vegetation densities and soil types. 5.2 Vegetation Billabong The distribution of different vegetation units and their relative health are critical for the identification of land management issues, soil types, and indications as to the effectiveness of management strategies. SPOT, LANDSAT and ASTER satellite imagery proved especially effective in mapping the distribution of these associations, which also corresponded well with vegetation structural units described in Specht (1981) and used to map units shown in Appendix 2. Within the Mallee region, the valleys of the Murray River, Darling River and Darling Anabranch are comparatively well vegetated with dense stands of trees and shrubs (Brown and Stephenson 1991). In the Lindsay-Wallpolla and Lake Victoria-Darling Anabranch region, the following associations were observed on the equivalent geomorphic units. The regolith landform units correlate well with vegetation densities, and with soil types (for soil type relationship see Figure 7). 11
Intermediate floodplain Modern floodplain Dune on terrace Oldest floodplain Figure 10. Further vertical view of part of LIDAR DEM showing geomorphic elements. Width of image ~5 km. North to top. 5.2.1 Uplands The vegetation of the uplands have largely been cleared for cropping. The remaining native vegetation is predominantly a saltbush (Atriplex sp.) shrubland with isolated Eucalyptus spp. trees. 5.2.2 Alluvial Terrace On the terrace the vegetation is predominantly Saltbush (Atriplex sp.) shrubland (Figure 11). Figure 5. Terrace vegetation and materials. Silty clay and saltbush (left), sand dunes and saltbush (right), Lindsay-Wallpolla and Lake Victoria-Darling Anabranch reach. 12
- Page 1 and 2: CRCLEME Cooperative Research Centre
- Page 3 and 4: This report (CRC LEME Open File Rep
- Page 5 and 6: Lindsay and Wallpolla Creeks are si
- Page 7 and 8: TABLE OF CONTENTS _Toc224538156 1 I
- Page 9 and 10: List of Tables Table 1. Association
- Page 11 and 12: The main objective of the studies r
- Page 13 and 14: 4. Identification of the high recha
- Page 15 and 16: The SRTM was used as to provide the
- Page 17 and 18: Figure 6. Compartmentalisation of t
- Page 19: Dune on terrace Alluvial terrace Yo
- Page 23 and 24: Locations of sample sites are given
- Page 25 and 26: 6.1 Granulometry 6.1.1 Methodology
- Page 27 and 28: Table 2). Mean pH and EC profiles a
- Page 29 and 30: when sampling. This is also reflect
- Page 31 and 32: Figure 12. SPOT image of Wallpolla
- Page 33 and 34: REFERENCES Bowler, J.M. and Harford
- Page 35 and 36: APPENDIX 1. ASTER data and interpre
- Page 37 and 38: APPENDIX 2. SPOT Data and interpret
- Page 39 and 40: APPENDIX 3. DEM data and interpreta
- Page 41 and 42: APPENDIX 4. Gamma-ray data 500000 (
- Page 43 and 44: APPENDIX 6. Site Descriptions and D
- Page 45 and 46: Site 3 South Settlement road, ~20 m
- Page 47 and 48: Site 5 Western end of Keera Road, s
- Page 49 and 50: Site 7 Eastern end of Old Mail Rd t
- Page 51 and 52: Site 12 Further to west along Old M
- Page 53 and 54: Site 14 Dedmens drive, across aband
- Page 55 and 56: Site 16 Same area as previous sampl
- Page 57 and 58: Site 18 Same location as 17, interm
- Page 59 and 60: Site 20 Adjacent to previous site C
- Page 61 and 62: Site 22 2 km east of Finnegans brid
- Page 64 and 65: APPENDIX 7: Analytical Results Appe
- Page 66 and 67: Appendix 7.2: Lindsay-Wallpolla Las
- Page 68 and 69: Appendix 7.3: Lindsay-Wallpolla XRF
Intermediate floodplain<br />
Modern floodplain<br />
Dune on terrace<br />
Oldest floodplain<br />
Figure 10. Further vertical view of part of LIDAR DEM showing geomorphic elements. Width of<br />
image ~5 km. North to top.<br />
5.2.1 Uplands<br />
The vegetation of the uplands have largely been cleared for cropping. The remaining native<br />
vegetation is predominantly a saltbush (Atriplex sp.) shrubland with isolated Eucalyptus spp.<br />
trees.<br />
5.2.2 Alluvial Terrace<br />
On the terrace the vegetation is predominantly Saltbush (Atriplex sp.) shrubland (Figure 11).<br />
Figure 5. Terrace vegetation and materials. Silty clay and saltbush (left), sand dunes and<br />
saltbush (right), Lindsay-Wallpolla and Lake Victoria-Darling Anabranch reach.<br />
12
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