Spatial and temporal scales

Competing spatial claims in delta's can be related to various spatial scales, for instance:

• Local 'production plot' scale: spatial concessions are given for production of specific species. This limits the possibilities for upscaling.
• Water system scale: water systems are used by different functions. Issues as carrying capacity (in ecological and other dimensions) are relevant
• Country scale: Existing spatial policy for near shore functions seems to be in a deadlock. There is no virtually no space to facilitate innovations in blue growth. Therefor there is a need for regime shift in policy and trying out new concepts for spatial planning.

Competing spatial claims in delta's also has various temporal scales, for instance:

• Internal changes with few stakeholder can be done within several months or years;
• Changes involving spatial planning or even cross-border collaborations are likely to take more than a decade;
• Water stress might increase as a result of climate change and increased salinization in the course of decades