| Study validity | |
---|---|---|
Low | Medium | |
Alone | ||
 Rock material | ||
  Gravel | 6 | 4 |
  Cobble | 14 | 9 |
  Sediment | 0 | 1 |
  Sediment trap | 1 | 1 |
  Gravel washing | 4 | 7 |
 Plant material | ||
  Brush | 4 | 0 |
  Log | 1 | 2 |
 Waterbody creation | ||
  Bay | 0 | 2 |
  Stream | 9 | 5 |
 Human-made structure | ||
  Structure | 3 | 2 |
 Waterbody modification | ||
  Excavate | 1 | 1 |
  Riparian | 1 | 0 |
Combinations | ||
 Log + structure | 0 | 1 |
 Log + excavate | 0 | 1 |
 Riparian + vegetation | 0 | 1 |
 Cobble + sediment trap + gravel | 1 | 0 |
 Gravel + structure | 1 | 2 |
 Cobble + structure | 0 | 2 |
 Cobble + log | 2 | 2 |
 Cobble + nutrient + log | 0 | 1 |
 Cobble + gravel | 3 | 2 |
 Cobble + gravel + excavate | 0 | 1 |
 Cobble + gravel + log | 1 | 0 |
 Cobble + gravel + structure + log | 1 | 0 |
 Sediment trap + gravel + log | 3 | 3 |
 Log + gravel + structure | 0 | 1 |