The ecological value of stream restoration measures:
2014-1-1 · For both gravel introductions, 20 m 3 of gravel were inserted into each river by an excavator, resulting in a homogenous area of 50 m 2. The treatment “substratum raking” was carried out by mechanically relocating 50 m 2 of clogged gravel with an excavator operating from the river bank, similar to the methodology described in Sternecker et al. (2013b) .
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