Total area in Lincolnshire: unknown
Total area within Critical Natural Asset & Basic Natural Stock Sites (approx.): 7ha in 2 sites.

Eastern England (including Lincolnshire) contains around 50% of the UK total of reedbeds, which have been identified as a priority habitat in the UK National Biodiversity Action Plan. Threats to this habitat include drainage, pollution and lack of management. The Swanpool is the largest continuous reedbed in Lincoln at 5ha, with Boultham Mere the next largest at 2.3ha; much smaller fragments of reedbed (area unknown) exist on other sites such as Pyewipe to West Holmes Junction.