Sediment budgets for cane lands and grazing lands in Northern Queensland, Australia and their use to target appropriate measures to control sediment export (C.H. Roth et al, 2004)

A sediment budget for a cultivated floodplain in tropical North Queensland, Australia (Visser et al, 2007)

Level 1: General Description


The main objective of these studies was to quantify the amount of sediment coming from low lying cane land and identifying the important sediment sources in the landscape.


Roth et al, 2004

The sediment budget used for Visser, 2003, the equation is:

I - S=O

I - the amount of sediment input into the drainage system from each of the landscape elements.

S - The amount of deposition within each landscape element

O - The amount of total output sediment from the studied area.

Visser et al, 2007

In this study erosion and deposition rates were measured for the different landscape elements in a subcatchment of the Herbert River and used to create a sediment budget

Key Findings

The results indicate that floodplains plains are an important net source of sediment. The conclusion drawn from the sediment budget was that cane fields are the most important sediment source. Water furrow generate most of the sediment but are not the most important source due to the relatively low connectivity. Headlands and minor drains can be significant sinks but under different circumstances they can also be sources.


Ripple River catchment of the Lower Herbert River catchment

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