Groundwater resources are facing increasing pressure from consuming and contaminating activities. There is a growing awareness that the quantitative and qualitative preservation of groundwater resources is a global need, not only to safeguard their future use for public supply and irrigation, but also to protect those ecosystems that depend partially or entirely on groundwater to maintain their species composition and natural ecological processes. Known as groundwater dependent ecosystems (GDEs), they have been a fast-growing field of research during the last two decades.
This book is intended to provide a diverse overview of important studies on groundwater and ecosystems, including a toolbox for assessing the ecological water requirements for GDEs, and relevant case studies on groundwater/surface-water interactions, as well as the role of nutrients in groundwater for GDEs and ecosystem dependence (vegetation and cave fauna) on groundwater. Case studies are from Australia (nine studies) and Europe (12 studies from nine countries) as well as Argentina, Canada and South Africa.
This book is of interest to everybody dealing with groundwater and its relationship with ecosystems. It is highly relevant for researchers, managers and decision-makers in the field of water and environment. It provides up-to-date information on crucial factors and parameters that need to be considered when studying groundwater-ecosystem relationships in different environments worldwide.
1. A toolbox for assessing the ecological water requirements of groundwater dependent ecosystems in Australia.
2. Water table dynamics of a severely eroded wetland system, prior to rehabilitation, Sand River Catchment, South Africa
3. Small-scale water- and nutrient-exchange between lowland River Spree (Germany) and adjacent groundwater
4. Artificial maintenance of groundwater levels to protect carbonate cave fauna, Yanchep, Western Australia
5. Spatial and temporal heterogeneity in the flux of organic carbon in caves
6. The influence of groundwater/surface water exchange on stable water isotopic signatures along the Darling River, NSW, Australia.
7. A geochemical approach to determining the hydrological regime of wetlands in a volcanic plain, south–eastern Australia
8. Mapping surface water-groundwater interactions and associated geological faults using temperature profiling
9. Typology of Groundwater - Surface water Interaction (GSI typology) - with new developments and case study supporting implementation of the EU Water Framework and Groundwater Directives
10. Conservation of trial dewatering discharge through re-injection in the Pilbara region, Western Australia.
11. Nitrogen cycle in gravel bed rivers: The effect of the hyporheic zone
12. Groundwater recharge quantification for the sustainability of ecosystems in plains of Argentina.
13. Nutrient sources for green macroalgae in the Ria Formosa lagoon – assessing the role of groundwater
14. Relationships between wetlands and the Doñana coastal aquifer (SW Spain)
15. Groundwater dependent ecosystems associated with basalt aquifers of the Alstonville Plateau, New South Wales, Australia
16. A Shift in the ecohydrological state of groundwater dependent vegetation due to climate change and groundwater drawdown on the swan Coastal Plain of Western Australia
17. Response of wetland vegetation to climate change and groundwater decline on th