Heathland & acid grassland
Total area in Lincolnshire (approx.): 628ha
Total known area within Critical Natural Asset & Basic Natural Stock Sites (approx.):
31 ha in 3
sites.
The main remnants of heath and acid grassland in Lincolnshire lie on the Fen Edge
sands and
gravel around Woodhall Spa; on the Coversands in the north-west of the county; and on the Trent
Valley gravel deposits on the west and south-west of Lincoln. Lincoln's heaths form part of the
Trent Valley complex. True heath dominated by ericaceous vegetation represents a comparatively
small proportion of the total area, making it one of the rarest habitat types in the county. Heathland
continues to be threatened by fragmentation and disturbance, scrub encroachment, desiccation
and pollution.
Although now largely lost to agriculture and afforestation the extensive sand and
gravel working in
the Trent Valley area has given rise to conditions where interesting wet and dry heath vegetation
has regenerated (such as Swanholme Lakes LNR/ SSSI). Small fragments of heathland and acid
grassland can also be found under secondary woodland (for example in Hospital Plantation).
Although these are too small to be accurately measured they have considerable potential as sites
for heathland re-establishment.