Add upland topsoil
Overall effectiveness category No evidence found (no assessment)
Number of studies: 0
Background information and definitions
Topsoil can be a source of soil organic matter and help to improve water retention (Bruland & Richardson 2004). This might benefit wetland vegetation, particularly when creating new marshes and swamps. However, given that upland soil will probably not contain seeds or fragments or marsh/swamp plants, it may be necessary to introduce these in some way. Caution: Topsoil may contain seeds or fragments of undesirable vegetation.
Related actions: Transplant or replace wetland soil (freshwater marshes – brackish/salt marshes – freshwater swamps – brackish/saline swamps); Add upland topsoil to complement planting (freshwater non-woody – brackish/saline non-woody – freshwater trees/shrubs – brackish/saline trees/shrubs).
Bruland G.L. & Richardson C.J. (2004) Hydrologic gradients and topsoil additions affect soil properties of Virginia created wetlands. Soil Science Society of America Journal, 68, 2069–2077.