Hannah Smith Year 4 Project

MAD WHARF COASTAL DEFENCE AND AGRICULTURAL RENEWAL STRATEGY LOCATION

M A Q U E T T E - removing measures of control to release opportunities

PRECEDENT

Pokkalli Farming - Kerala, India

DIAGRAMMATIC STRATEGY

AQUACULTURE

dunescape containing existing wet and dry slacks existing drainage channels proposed combination water channels (wet)

semi wet combination channels wetland development

proposed artificial wet slacks

existing pasture and vegetable farming proposed saline agriculure low tolerance oil seed crops

AGRICULTURE

low - medium tolerance semi permanent forage crop trials

semi permanent saline agriculture - medium tolerance oil seed crops low tolerance oil seed crops reed harvesting

wet combination channels increasing wetland development containing plugs to control saline and fresh water combintaions

halophytes in salt marsh harvested for biomass low tolerance oil seed crops medium tolerance forage crops

MAD WHARF MANAGEMENT STRATEGY IMPLEMENTATION STAGE at implementation stage, constructed environments are positioned to respond to the sudden change in on site water volumes created by reducing the gip of the drainage system on the landscape. they are effectively biocentric solutions to water storage problems. consequential environments are biocentric responses to the intervention which are encouraged through management to develop and provide opportunities for more diverse forms of production and biodiversity.

constructed environments

riparian wetland

consequential environments

semi wet slacks

low water

sedimentary deposition

sand movement

tidal salt marsh

wading bird feeding ground shellfish and bird feeding

grazing management

sediment movement downstream

high water

riparian species establishment

scrub colonisation and natterjack toad breeding

MAD WHARF DESIGN SCENARIO

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sea level monitoring devices

saline channel

dunescape

marsh boardwalk

embryonic to fixed dunes remain wild landscapes with very low density sheep grazing to prevent over stabilising of dunes

salt waterscape

wet slacks hold large volumes of sea water which is collected when tides are high. more intensive sheep grazing occurs in the backlands as it is less damaging to the dune system and controls dominant scrub invasion.

fibre optic bundles

leisurescape

marsh canopy walks which divert visitors away from the existing over used tourist footpath allow people to experience the unique fibre optic salt marsh environment whilst retaining the landscape’s fragility.

farmscape

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Sea level monitoring poles

fresh waterscape

a more conventional agricultural landscape provides space for economically viable production of salt tolerant crops such as salicornia, sea kale or sea aster. these are distributed locally and regionally using the new water channels which link up to the river alt.

lower fresh water marsh land is able to withstand periodic immersion through succession of highly absorbant phragmites and salix species. upper wetland areas experience more exposure and can be grazed.

PRECEDENT Lightening fields - New Mexico

Fibre optic salt marsh

PRECEDENT Measuring pollutant levels in water - Rhode Island

Productive marshland

PRECEDENT Grazed marshes Netherlands