For each distinct section of coastline, the information obtained through baseline data collection can be used to define the status of the saltmarsh based on a system of Saltmarsh Classification (see figure below). This type of classification uses the plan form of the saltmarsh to help to indicate the urgency of action (in terms of flood management) and the appropriate level of action required.

Saltmarsh classification diagram

Key:

A - No immediate risk to sea defences; monitor only.
B - Investigate causes of change; consider implementing low cost maintenance and enhancement solutions; increase monitoring effort.
C - Urgent need for study and (probably) intervening action.
D - May not be possible to re-establish/maintain saltmarsh without major works or realignment.

Classification might equally use the saltmarsh vegetation succession to consider if, over time, the vegetation is:

• Generally tending towards more pioneer species - thus suffering greater inundation and becoming relatively lower in the tidal frame (and hence can be considered to be eroding).
• Remaining consistent in its assemblages - thus not developing to the next successional stage but keeping pace with change (and hence can be considered to be stable).
• Generally tending to more mature species - thus the saltmarsh in developing through a normal succession (and hence accretion can be considered to be on-going).