Vegetation dynamics

We record vegetation dynamics both by manual and digital photography surveys of 1 m2 quadrats. We also measure growth increments of ling heather (Calluna vulgaris). The major vegetation types observed at the sites are: heather (Calluna) dominated shrub vegetation, sedge (Eriophorum spp.), some rush near stream areas, Sphagnum and other moss cover, the latter with a large component of Hypnum jutlandicum and Campylopus spp. In 2012, before mowing or burning, sites were characterised by similarly tall heather stands (~35 cm) with notably low plant diversity (ca. 8 or 14 species per 1 x 1 m plot areas and across the entire 5 x 5 m monitoring plots, respectively). The dense Calluna cover (~60%) further contained mostly about 10% fractions of sedges (Eriophorum sp.), Sphagnum moss and other moss. All very typical for heather-dominated grouse moor. All sites are classed as NVC M19a (based on the % plant species cover per uncut plots).


Calluna patch


Nidderdale vegetation survey at treatment sub-catchment:
shown are the 1 x 1 m survey plots and 5 x 5 m plots.


Sedge patch


Mossdale vegetation survey at treatment sub-catchment:
shown are the 1 x 1 m survey plots and 5 x 5 m plots.

Sphagnum patch


Whitendale vegetation survey at treatment sub-catchment:
shown are the 1 x 1 m survey plots and 5 x 5 m plots.


Comments