The ECN Data Centre

Site Information: Old Lodge

Sponsoring organisation(s)

Department for Environment, Food and Rural Affairs (through United Kingdom Upland Waters Monitoring Network)

Network(s) this site belongs to
UK Environmental Change Network
Upland Waters Monitoring Network

Site characteristics

Altitude m

The catchment area is indicated with a black line.
Click map to enlarge.

Mean annual pH* 4.8
Mean annual discharge* cumecs
Mean annual water temperature* 10.4
* calculated from the ECN Data Centre database
Information held about this site
View a list of datasets collected at this site
View a list of publications about this site


Old Lodge is a stream site within a catchment of 240 ha in Ashdown Forest, SE England. The altitude of the catchment ranges between 94 m and 198 m. The underlying geology comprises Ashdown sands (Hastings beds) and the catchment soils are typically podsolic. Approximately 15% of the catchment is deciduous woodland, principally around the sampling site. Conifers occupy less than 5% of the catchment, with the remainder classified as heathland vegetation dominated by Calluna (heather) and Erica (bell heather), with abundant stands of Pteridium (bracken). There has been no land use disturbance in the catchment for the past 200 years, although the severe wind-throw affected many trees after the storms of October 1987.

Old Lodge is classified as having moderate-to-high acid deposition. The catchment has been the focus of research into the relationship of acid stream chemistry and biological, particularly invertebrate, populations.

Upland Waters Monitoring Network


Related links

  • The Upland Waters Monitoring Network website has information about this site and data summaries from the UWMN annual report.



Mr Ewan Shilland

Environmental Change Research Centre, Department of Geography, University College London, Pearson Building, Gower Street, London, WC1E 6BT

  ECN Data Centre ECN for Schools ECN Sponsors

Contact the ECN Data Centre at Policy  |  Privacy and Cookies  
Website design and interface development by Susannah Rennie -