Generally, Groundwater-dependent ecosystems (GDEs) are defined as a current ecosystem structure containing species(mainly woody vegetation) that are groundwater dependent. GDEs are a geographically small, yet diverse and valuable part of Australian biodiversity. It was not until the 1990s in Australia that GDEs were recognised by the hydrological and ecological communities as a class of ecosystems. Even today, these ecosystems are rarely recognised in texts covering hydrology or ecology. However, it is clear that GDEs contribute significantly to the biological diversity of Australia and have cultural, social, economic, ecological and conservation value, and also like most other ecosystems, those dependent on groundwater face a broad range of direct and indirect anthropogenic threats. Therefore the health assessment and protection of GDEs is very important.
However, until now remote sensing methods have not been widely used in GDEs research. The publication of some Remote Sensing (RS) data like GRACE and NDVI makes temporal and spatial resolution necessary to adequately characterize the groundwater and vegetation at regional to continental GDEs scales. Therefore, exploring RS methods to measure groundwater changes, and its relationship with vegetation in Groundwater Dependent Ecosystems of Australia is essential. Also it can provide a new view to aid in formulating a better understanding of the functioning and management options for these ecosystems.
- Identify the RS techniques and methods for detecting the changes in groundwater
- How to use GRACE to achieve the accurate monitoring of groundwater changes
- Identify the value and importance of, and technologies for, understanding and protecting GDEs of Australia
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