Global Terrestrial Observing System

 

This project aims to validate models of NPP (net primary productivity) and leaf area index using satellite imagery.

A 1 km grid-square centred on the Straits Enclosure was designated as one of two ground truthing stations in the UK. The comprehensive survey enabled a protocol for the derivation of Leaf Area Index (LAI ) representative of the forest block to be developed.

The contribution of the understorey and ground vegetation is important in this context, particularly in spring, prior to development of the oak overstorey. The network of quadrats set up as part of an investigation into the physiological parameters of lowland oak woodland will also enable any measurements made to be scaled to provide data fully representative of the 1 km grid-square.