... not. Figure 1: Map showing fieldwork sites (Scale = 1:10,000) www.multimap.com) Method At each of the sites shown above the following measurements were taken: * Width (from wetted perimeter and bank-full) * Depth (at meter intervals across the channel) * Velocity (at meter intervals across the channel) * Clast volume (15 stones sampled at random from either side of the river channel) The data gathered at the restored site was compared with the data gathered at the un-restored section. Statistical tests (t-tests) were used to make sure that any differences seen were large enough to draw valid conclusions from. The data gathered was then collated and entered into Microsoft Excel. The data will be presented: o Histograms- Clast volume o Scattergraph- Velocity against depth o Column chart- dishcharge Results Clast volume: The above graph shows that the restoration has had an effect on clast volumes. The mean clast volume in the managed river is substantially smaller than the ...

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