|Site types that use this protocol||
Semi-natural and managed vegetation is often very sensitive to the main drivers of environmental change, ie climate, pollutants and land use practices.
The vegetation protocol is sub-divided as follows:
Baseline Survey (VB). Whole site survey with up to 500 systematic 2m x 2m plots. Species presence related to the National Vegetation Classification (NVC)
Coarse-grain sampling (VC). 50 random 2m x 2m grid plots surveyed every nine years. Species presence recorded in each of the 25 40cm x 40cm cells of the plot. Where plots fall in woodland, seedlings, dbh, height and dominance are recorded within a surrounding 10m x 10m plot (Woodlands (VW)).
Fine-grain sampling (VF). At least 2 10m x 10m plots randomly selected within each NVC type surveyed every three years. Species presence recorded in 40cm x 40cm cells.
In addition: linear features (VH), permanent grass (VP) and cereals (VA)
For details of these elements of the protocol see the Vegetation (V) protocol document (link above).