soil map units where Mm Mangrove mucks is dominant
                
            
        Soil properties
| Property | Value | 
|---|---|
| Geographic distribution | Tuvalu | 
| Landscape position | Riparian fringes of the enclosed lagoons | 
| Soil parent material | Coralline sand | 
| Slope | Flat (0-3°) | 
| Surface outcrops | No surface outcrops | 
| Brief soil profile description | Typically fine grained mud with organics disseminated throughout, over a coral rubble or hard pan of reef rock conglomaterate. Fibrous mangrove peats do occur, but are rare. | 
| Soil profile texture | - | 
| Minimum effective rooting depth | n/a | 
| Soil pH (acidity) | - | 
| Salinity | High | 
| Soil fertility under natural conditions | Not analysed | 
| Soil moisture regime | Peraquic | 
| Susceptibility to drought | Tidal - no susceptible to drought | 
| Soil drainage | Poorly drained | 
| Susceptibility to waterlogging | Water tables is close to the surface and tidally influenced | 
| Susceptibility to flooding | Regularly affected by tidal inundation by sea water |