Rapid assessment of gully sidewall erosion rates in data-poor catchments: A case study in Australia
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Whitford, J; Newham, Lachlan; Vigiak, O; Melland, A R; Roberts, A M
Description
Knowledge of erosion rates and sediment yields from gullies is critical for the effective prioritisation of management efforts aimed at reducing the impact of gully-derived sediments on water quality. This paper describes a rapid assessment method for estimating sidewall gully erosion rates for already established gully networks. It combines a conceptual-empirical model of the cycle of gully initiation and stabilisation with an easy-to-apply technique for assessing gully extent and dimensions....[Show more]
dc.contributor.author | Whitford, J | |
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dc.contributor.author | Newham, Lachlan | |
dc.contributor.author | Vigiak, O | |
dc.contributor.author | Melland, A R | |
dc.contributor.author | Roberts, A M | |
dc.date.accessioned | 2015-12-10T23:16:00Z | |
dc.identifier.issn | 0169-555X | |
dc.identifier.uri | http://hdl.handle.net/1885/64882 | |
dc.description.abstract | Knowledge of erosion rates and sediment yields from gullies is critical for the effective prioritisation of management efforts aimed at reducing the impact of gully-derived sediments on water quality. This paper describes a rapid assessment method for estimating sidewall gully erosion rates for already established gully networks. It combines a conceptual-empirical model of the cycle of gully initiation and stabilisation with an easy-to-apply technique for assessing gully extent and dimensions. The method is illustrated using a case study of the Avon-Richardson Catchment of north-central Victoria, Australia. It is estimated that a total of 4.6×106tonnes of sediment have been generated in that catchment from gully erosion since the latest major phase of gullying in the mid 1800s. This is equivalent to 8.9tha-1y-1 if sediment generation was evenly distributed spatially and temporally across the 3300km2 catchment over 160years prior to 2010. Current rates of gully erosion are estimated to be 4700ty-1 (equivalent to 1.4tha-1y-1). The results are comparable with observed rates of sidewall erosion in the Avon-Richardson Catchment. Further testing is required to build confidence in its applicability to assess sediment yields and for assisting regional authorities to plan remediation efforts. | |
dc.publisher | Elsevier | |
dc.source | Geomorphology | |
dc.subject | Keywords: assessment method; catchment; erosion rate; gully; gully erosion; sediment yield; water quality; Australia; Avon River [Victoria]; Richardson River; Victoria [Australia] Erosion rates; Gully erosion model; Rapid assessment; Sediment generation | |
dc.title | Rapid assessment of gully sidewall erosion rates in data-poor catchments: A case study in Australia | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 118 | |
dc.date.issued | 2010 | |
local.identifier.absfor | 050205 - Environmental Management | |
local.identifier.ariespublication | f2965xPUB1014 | |
local.type.status | Published Version | |
local.contributor.affiliation | Whitford, J, VIC Department of Primary Industries | |
local.contributor.affiliation | Newham, Lachlan, College of Medicine, Biology and Environment, ANU | |
local.contributor.affiliation | Vigiak, O, VIC Department of Primary Industries | |
local.contributor.affiliation | Melland, A R, VIC Department of Primary Industries | |
local.contributor.affiliation | Roberts, A M, VIC Department of Primary Industries | |
local.description.embargo | 2037-12-31 | |
local.bibliographicCitation.issue | 3-4 | |
local.bibliographicCitation.startpage | 330 | |
local.bibliographicCitation.lastpage | 338 | |
local.identifier.doi | 10.1016/j.geomorph.2010.01.013 | |
local.identifier.absseo | 960999 - Land and Water Management of environments not elsewhere classified | |
dc.date.updated | 2016-02-24T08:08:11Z | |
local.identifier.scopusID | 2-s2.0-77952888600 | |
Collections | ANU Research Publications |
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