Journal
MATHEMATICS AND COMPUTERS IN SIMULATION
Volume 79, Issue 9, Pages 2679-2688Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matcom.2008.10.001
Keywords
Road erosion modelling; Suspended sediment; Sediment delivery; Road management; WARSEM
Ask authors/readers for more resources
Unsealed roads and tracks are potentially significant Sources of diffuse pollutants, particularly sediment. This paper describes the application and development of a road erosion and sediment transport model in the Moruya-Deua and Tuross River catchments of southeast Australia. An empirical model based on the Washington Road Surface Erosion Model (WARSEM) is applied using typically widely available spatial data sets and field-collected data. The results suggest that approximately 21 kt and 35 kt of sediment respectively are produced annually from road erosion in the Moruya-Deua and Tuross River catchments, but that less than 10% of the sediment is delivered to streams. Surprisingly, about half of the delivered sediment is derived from only 4% of the total road network. Testing of the model shows that the model outputs are likely to overestimate road erosion rates. To address this problem, catchment-specific testing of the factors of the model and improving knowledge of the processes of road to stream sediment transport are required. (c) 2008 IMACS. Published by Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available