Remove surface soil/sediment (before planting)
Overall effectiveness category No evidence found (no assessment)
Number of studies: 0
Background information and definitions
The surface soil/sediment – and any vegetation on it – could be removed from degraded wetlands, creating a new bare surface for planting vegetation. This new surface may have fewer nutrients and other pollutants, no undesirable seed bank, no hard crust and be wetter since the surface is now closer to the water table.
Caution: Heavy machinery is usually needed for this action. Heavy vehicles can churn and compress wetland soils (Campbell et al. 2002). Soil removal can also have counter-intuitive effects, such as increasing ammonium concentrations because nitrifying bacteria, which break down ammonia, have been removed (Dorland 2004). Soil removal can be time consuming and expensive.
Related actions: Remove surface soil/sediment, other than to complement planting; Reprofile/relandscape before planting; Bury surface soil/sediment before planting; Transplant wetland soil before/after planting.
Campbell D.A., Cole C.A. & Brooks R.P. (2002) A comparison of created and natural wetlands in Pennsylvania, USA. Wetlands Ecology and Management, 10, 41–49.
Dorland E. (2004) Ecological restoration of wet heaths and matgrass swards: bottlenecks and solutions. PhD Thesis, Utrecht University, The Netherlands.