Groundwater; Managing our Hidden Asset

Dr Arnaud Duranel, Senior Ecologist at Thomson Ecology, is speaking at the “Groundwater; Managing our Hidden Asset” conference this week.

The two-day conference, which is hosted by the University of Birmingham, will celebrate the International Association of Hydrogeologists’ 60th anniversary and the Geological Society’s Year of Water.

Arnaud will talk during the “Groundwater ecosystem services” session on Wednesday morning. His talk is entitled “Integrated hydrological modelling of a groundwater-dependent valley mire in central France”. He will also present two posters.

Arnaud has over fifteen years’ experience in ecology and hydrology, and has an expert knowledge of wetland ecology, hydrology, wetland management, restoration and creation.

He says that, “The understanding of the hydrogeology of hard-rock aquifers has changed substantially over the last 20 years. In particular, it has been recognised that they are not limited to the superficial and often discontinuous saprolite layer, but are, in many cases, continuous composite aquifers in which the presence of a layer of densely fissured rock ensures a transmissive function. Accordingly, classic concepts regarding the hydrogeology of acidic valley mires located at the bottom of etch-basins in Hercynian Europe may require revision. Here we present the results of a field and modelling study investigating the water balance of such a mire and the impacts of catchment afforestation on its hydrological condition, using the integrated distributed hydrological model MIKE SHE coupled to the HYLUC interception model. It is shown that groundwater from the fissured granite upwelling through the peat makes for a quantitatively important and functionally essential part of water inputs to the mire. The model suggested that replacement of open habitats by conifer plantations within the catchment may lead to a substantial reduction in surface and groundwater inputs to this type of mire. A substantial drop in groundwater levels in the peat is also predicted, but only along the mire margins.”

For further information on the conference, click here:

Thomson Ecology Handbook

This online version of the Thomson Ecology Handbook provides a general overview of current wildlife legislation* and is aimed at helping project managers understand and plan for ecology from the start.

Find out more

Stay Up to Date

Staying up to date with the latest environmental and ecological requirements is key to your project. Whether it’s the latest copy of the Thomson Ecology Handbook, a timely legislation update, or guidance on the latest seasonal activities, we want to provide you with relevant information, straight to your inbox.

Sign up for our email newsletter below.

Thank you! Your subscription has been confirmed. You'll hear from us soon.