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| Lincolnshire Coastal Grazing Marshes | |
|---|---|
| Name | Lincolnshire Coastal Grazing Marshes |
| Location | Lincolnshire, England |
Lincolnshire Coastal Grazing Marshes are a distinctive mosaic of low-lying grasslands, dykes and saltmarshes along the east coast of England in Lincolnshire. The landscape lies adjacent to the North Sea and interleaves with estuaries, seawalls and reclaimed polderland shaped by centuries of drainage and flood defence. The area supports important wetland habitats that underpin regional biodiversity and link to national conservation networks.
The marshes lie principally along the Lincolnshire coast between The Wash and the Humber Estuary, encompassing coastal plains near Grimsby, Cleethorpes, Boston and the villages of the Lincolnshire Wolds fringe. The complex includes parcels adjacent to the River Witham, River Welland, River Nene estuarine systems and reclaimed saltings near Skegness and Mablethorpe. Administratively the marshes fall within the ceremonial county of Lincolnshire and touch unitary areas such as North East Lincolnshire and East Lindsey District. The extent is defined by seawalls, drainage channels and historic embankments constructed in phases from medieval times through the Victorian era.
Underpinning the marshes are Quaternary alluvium, marine silts and peat layers overlying Jurassic and Cretaceous bedrock near the Lincolnshire Edge. Soils range from brackish peat and gyttja to silty loams developed on reclaimed marine deposits. Hydrologically the system is controlled by a network of artificial ditches, rhynes and pumps linked to sluices and outfalls at the coast, managed historically by internal drainage boards such as the Witham Fourth District IDB and modern agencies including the Environment Agency. Tidal influence from the North Sea and storm surge events recorded in the North Sea flood of 1953 shape salinity gradients and seasonal inundation patterns across the marshes.
The grazing marshes form a continuum of coastal wetland habitats: grazed neutral and brackish pastures, saltmarsh, reedbeds, saline lagoons and intertidal mudflats. These habitats create essential foraging and roosting sites within the East Atlantic Flyway for migratory species linked to staging areas in the Wash and further afield to Shetland and The Netherlands. Connectivity with nearby Sites of Special Scientific Interest (SSSIs) and Special Protection Areas (SPAs) integrates the marshes into national networks such as the Ramsar Convention designated wetlands and Natura 2000 sites designated under the European Union directives historically implemented in UK policy.
Vegetation is typified by salt-tolerant species including common saltmarsh-grass, cordgrass in some accreting zones, and reed-dominated stands of Phragmites australis in ditches and freshwater margins. Grazed pastures support a mosaic of forbs and grasses that sustain invertebrate assemblages. Avifauna is prominent: wintering and breeding populations of avocet, redshank, ruff, lapwing and curlew exploit the marshes while migrants such as bar-tailed godwit and dunlin use mudflats. Mammals include water vole and small numbers of hedgehog and terrestrial small mammals in field margins; marine-edge species such as harbour seal are occasionally observed offshore. Invertebrate assemblages feature specialist saltmarsh beetles and marsh moths that link to wider conservation priorities exemplified by research from institutions like the Natural England and universities such as the University of Lincoln.
Traditional management combines low-intensity cattle and sheep grazing with haymaking on improved grazing marsh, reflecting agrarian practices from the Middle Ages through enclosure movements and agricultural improvements in the 18th century. Drainage regimes maintained by internal drainage boards enable mixed livestock systems alongside cereal production on higher ground near Lincoln. Agricultural policy instruments including historic Common Agricultural Policy payments influenced land management, while contemporary agri-environment schemes administered by Natural England encourage wet grassland restoration, buffer strips and seasonal grazing regimes to support bird populations and soil conservation.
Conservation in the marshes is coordinated through statutory designations such as SSSIs, SPAs and Ramsar listings, and implemented by agencies including Natural England, the Environment Agency and local internal drainage boards. Management actions emphasize controlled grazing, water-level control, reedbed management and reinstatement of tidal exchange in targeted projects undertaken with partners like the RSPB and local wildlife trusts such as the Lincolnshire Wildlife Trust. Monitoring uses standardized protocols established by organizations including the British Trust for Ornithology and the Joint Nature Conservation Committee to track bird populations, invertebrates and habitat condition against national Biodiversity Action Plan targets.
The marshes are historically shaped by reclamation, saltworking and coastal trade linked to medieval ports such as Boston and later to 19th-century coastal resorts like Skegness which emerged with transport links including the Great Northern Railway. Landscape features such as sea banks, drainage mills and field patterns reflect interventions from monastic estates, post-medieval landowners and 19th-century engineers; these interact with cultural heritage assets recorded by the Historic England. The marshes have inspired regional literature and art associated with Lincolnshire’s coastal identity and continue to support local livelihoods through farming and tourism while facing 21st-century challenges from climate change-driven sea-level rise and coastal erosion documented in national assessments.