Ford, H.; Garbutt, A.; Skov, M.

Coastal Biodiversity and Ecosystem Service Sustainability (CBESS) net primary productivity (NPP) on salt marsh sites at Morecambe Bay and Essex

The dataset comprises net primary productivity (NPP) measured as kilogrammes of dry above-ground vegetation per square metre per year. Sampling was conducted at six salt marsh sites at four spatial scales: 1 metre (m) (the minimal sampling unit) nested within a hierarchy of increasing scales of 1-10 m, 10-100 m and 100-1000 m. Three of the sites were in Morecambe Bay, North West England and three of the sites were in Essex, South East England. NPP measurements were based on vegetation re-growth after cutting in winter 2013 and harvesting in summer 2013.

This data was collected as part of Coastal Biodiversity and Ecosystem Service Sustainability (CBESS). The project was funded with support from the Biodiversity and Ecosystem Service Sustainability (BESS) programme. BESS is a six-year programme (2011-2017) funded by the UK Natural Environment Research Council (NERC) and the Biotechnology and Biological Sciences Research Council (BBSRC) as part of the UK's Living with Environmental Change (LWEC) programme.

Publication date: 2016-05-03

Get the data

This dataset is made available under the terms of the Open Government Licence

Format of the dataset : Comma-separated values (CSV)

You must cite: Ford, H.; Garbutt, A.; Skov, M. (2016). Coastal Biodiversity and Ecosystem Service Sustainability (CBESS) net primary productivity (NPP) on salt marsh sites at Morecambe Bay and Essex. NERC Environmental Information Data Centre.


© Bangor University


Study area
Temporal extent
2013-01-01    to    2013-08-31

Provenance & quality

Net primary productivity (NPP) was measured as an above ground vegetation sample (cut at ground level) of 50 centimetre (cm) x 25 cm inside grazer exclusion cages during the summer 2013 sampling period (after all above ground vegetation removed from 50 cm x 25 cm area in winter 2013). NPP was calculated from each quadrat by scaling up the mass of the dry vegetation to kg per square metre per year. Vegetation cut in field then dried at 60 degrees Celsius for 72 hours. Results were recorded onto field sheets. These data were transferred into an Excel file and calculations carried out. Results were exported as comma separated value files for ingestion into the EIDC. The location of the sample sites was determined by randomly allocated quadrats. Each site consisted of a rectangular area of saltmarsh between 400 x 500 metre (m) to 1000 x 1000 m in size, dependent upon saltmarsh length (parallel to shore) and width (perpendicular to shore), including part of the low, mid and high marsh zones. Twenty two 1 x 1 m quadrats were randomly allocated to each site rectangle using R (R Development Core Team, 2014) to specify four different spatial scales (A = 1 quadrat only, B = 3 quadrats at 1 m to 10 m apart, C = 6 quadrats at 10 m to 100 m apart, D = 12 quadrats at 100 m to 1000 m or site maximum).

Correspondence/contact details

Dr. Hilary Ford
University of Bangor
Thoday Building, Deiniol Road
LL57 2UW


Ford, H.
University of Bangor
Garbutt, A.
Centre for Ecology & Hydrology
Skov, M.
University of Bangor

Other contacts

Environmental Information Data Centre
NERC Environmental Information Data Centre


Spatial representation type
Tabular (text)


Topic categories
BESS (Biodiversity and Ecosystem Service Sustainability),  CBESS (Coastal Biodiversity and Ecosystem Service Sustainability),  Essex grassland,  Morecambe Bay Net Primary Production,  NPP,  salt marsh,  vegetation
Habitats and Biotopes