Summary - City of Gosnells

Wetlands Field Survey 85Site No.1. Hydroperiod and Water Table(WT) Relative to GroundSurface2. LandformStratigraphyFacultative & ObligateWetland Taxa1. F (as % total siteflora)2. O (as % total siteflora)Wetland Criteria of Site1. Hydric soils2. Hydrology3. Wetland taxa (O+F % of Total site flora)UFI and WetlandType1. Classification inSCP WetlandsDataset2. Classification inCurrent SurveySite 71. Waterlogged in spring.2. Flat to gentle slope.Peaty quartz sand over sandyclay (Deeper sediments notinvestigated)1. 14%2. 76%1. Hydric soils: peaty sand over shallow hardpan.2. Complex hydrology: surface waterlogged in spring due toperching, seepage and possibly other factors.3. Vegetation: dominated by wetland taxa (90% of taxa O orF).1. UFI 7800Palusplain2. PalusplainSite 81. Surface waterlogging in spring.2. Flat.Muddy quartz sand overmuddy sand with gravel,mottles from -60 cm, oversandy mud. Hardpan at-130cm.1. 37%2. 47%1. Hydric soils: shallow aquitard and mottling.2. Hydrology: waterlogged in spring.3. Vegetation dominated by wetland taxa (84% of taxa O or F)1. UFI 7785Palusplain2. PalusplainSite 91. Surface waterlogging in spring.2. Flat.Muddy-sand over sandy mudat -30 and hardpan at -50cm.1. 31%2. 53%1. Hydric soils: shallow aquitard.2. Hydrology: waterlogged surface in winter.3. Vegetation dominated by wetland taxa (84% of taxa O or F)1. UFI 14122Palusplain2. PalusplainSite 101. Surface waterlogging in spring.2. Flat.Muddy quartz sand withmottles at -30cm, layers ofsandy mud and muddy sandover quartz sand from -180cm and hardpan at -250cm.1. 39%2. 48%1. Hydric soils: shallow aquitard. Complex stratigraphy.2. Complex hydrology: waterlogged surface in winter.3. Vegetation dominated by wetland taxa (87% of taxa O or F)1. UFI 14122Palusplain2. PalusplainSite 111. Surface waterlogging in spring.2. Flat.Muddy quartz sand overhardpan at -60cm.1. 39%2. 41%1. Hydric soils: shallow aquitard.2. Hydrology: waterlogged surface in winter.3. Vegetation dominated by wetland taxa (80% of taxa O or F).1. Hydric soils: peaty sand, mottling, shallow aquitard.2. Hydrology: waterlogged surface in winter.3. Vegetation dominated by wetland taxa (77% of taxa O or F)1. UFI 14122Palusplain2. PalusplainSite 121. Surface waterlogging in early springand WT at about -110 in late spring.2. Flat.Shallow peaty, quartz sandover muddy sand, hardpan atabout -120cm.1. 56%2. 21%1. UFI 8033Palusplain2. PalusplainSite 131. A mosaic of surface waterloggedareas and some smaller areas ofinundation. Not mapped in detail.2. Flat.1. Shallow standing water in springapprox +5cm max., perchedrainwater. Wetland partlymaintained by rainfall, seepage fromdune and flow from spring. Requiresfurther study to manage valuessustainably.2. Flat.Shallow sandy mud perchesrainwater.(Deeper sediments notinvestigated)1. 29%2. 50%1. Hydric soils: shallow aquitard.2. Hydrology: waterlogged/or shallowly inundated in spring.3. Vegetation dominated by wetland taxa (79% of taxa O or F)1. UFI 8034Palusplain2. PalusplainSite 14Peaty muddy sand to hardpanat -30cm.1. 32%2. 51%1. Hydric soils: peaty, muddy aquitard.2. Complex hydrology: surface inundated in spring due toperching of rainfall, seepage from dune and flow fromspring.3. Vegetation dominated by wetland taxa (83% of taxa O or F)1. UFI 13827Palusplain2. PalusplainfloodplainTauss, C. and Weston, A.S. (2010). The flora, vegetation and wetlands of the Maddington-Kenwick Strategic Employment Area.A survey of the rural lands in the vicinity of the Greater Brixton Street Wetlands. Report to the City of Gosnells, W.A. Version 18.04.10