Sediment and waterholes

The pools that remain in northern Australian rivers during the long dry season provide an important refuge for stream fauna and flora and are often culturally significant.  There is a common perception, however, that many of these riverine waterholes are being filled by sands.  Changes in land-use upstream and the effects of climate change have been suggested as causes for sand accumulation. This project sought to determine, whether there was evidence for sustained infilling of pools within two north Australian river catchments.

 

Land-use change from indigenous management to cattle grazing initiates the gullying of alluvial soils in northern Australia

Shellberg, J., Brooks, A., & Spencer, J. 2010. Land-use change from indigenous management to cattle grazing initiates the gullying of alluvial soils in northern Australia. Proceedings of the 19th World Congress of Soil Science, Soil Solutions for a Changing World. International Union of Soil Sciences.

Alluvial gully erosion: an example from the Mitchell fluvial megafan, Queensland, Australia

Brooks, A. P., Shellberg, J. G., Knight, J. and Spencer, J. (2009), Alluvial gully erosion: an example from the Mitchell fluvial megafan, Queensland, Australia. Earth Surf. Process. Landforms, 34: 1951–1969. doi:10.1002/esp.1883

Sediment production and yield from an alluvial gully in northern Queensland, Australia

Shellberg, J., Brooks, A., & Rose, C. (2013). Sediment production and yield from an alluvial gully in northern Queensland, Australia. Earth Surface Processes and Landforms, 38(15), 1765-1778. DOI: 10.1002/esp.3414

The hydrogeomorphic influences on alluvial gully erosion along the Mitchell River fluvial megafan

Shellberg, J., Brooks, A., Spencer, J., & Ward, D. (2013). The hydrogeomorphic influences on alluvial gully erosion along the Mitchell River fluvial megafan. Hydrological Processes, 27(7), 1086-1104. doi: 10.1002/hyp.9240

The hydrogeomorphic influences on alluvial gully erosion along the Mitchell River fluvial megafan
Land-use change from indigenous management to cattle grazing initiates the gullying of alluvial soils in northern Australia

Shellberg, J., Brooks, A., & Spencer, J. 2010. Land-use change from indigenous management to cattle grazing initiates the gullying of alluvial soils in northern Australia. Proceedings of the 19th World Congress of Soil Science, Soil Solutions for a Changing World. International Union of Soil Sciences.

The hydrogeomorphic influences on alluvial gully erosion along the Mitchell River fluvial megafan

Shellberg, J., Brooks, A., Spencer, J., & Ward, D. (2013). The hydrogeomorphic influences on alluvial gully erosion along the Mitchell River fluvial megafan. Hydrological Processes, 27(7), 1086-1104. doi: 10.1002/hyp.9240

The hydrogeomorphic influences on alluvial gully erosion along the Mitchell River fluvial megafan

The project was led by scientists at the Australian Rivers Institute (ARI) at Griffith University in Brisbane. They were supported by other scientists from CSIRO Land and Water (in Canberra), the Northern Territory Government and Charles Darwin University.

Andrew Brooks from the ARI was the project leade