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Catchment management groups The operating area for regional-level planning for dryland salinity is the catchment level, where one or more catchment management groups have overall responsibility for developing an integrated management plan. The Australian Government is working with State and Territory governments, and catchment management groups to achieve effective action to manage salinity. In such regions typical questions are: ❚❘ What is the overall level of the problem in the region? ❚❘ How do managers get that right mix of actions that tackle prevention, recovery, containment and adaptation? ❚❘ Where are the best locations to put in salinity management options (e.g. drainage, revegetation works, salt interception schemes) that will deliver the salinity target (e.g. mg/L of salt being exported to the river, or lowered watertable) in the most costeffective fashion? ❚❘ What information is needed to make sound investment decisions at this level? Investment decisions might be expressed in terms of an investment framework of where is it best to invest funds to maximise benefit (e.g. into mapping, modelling, new research and development or into on-ground interception works). Other dryland salinity management scales such as the expanse of the Murray– Darling Basin also exist. 5