Groundwater response to globalchanges is a complex function that depends on climate change and variability, topography, aquifer characteristics, vegetation dynamics, and human activities.
Changes in agricultural practices and the local climate - thought to be brought about by global warming - as well as housing, industrial and transport developments have all taken their toll on good species-rich grassland in the county.
The scientists are concerned that the biosphere has seen dramatic changes since the last Ice Age, factoring in the climate and a huge increase in global population.