Nature-based solutions
This module translates findings into a condition assessment (intact/processed/deteriorated) that determines opt-outs, prioritized measures, and need for restoration – documented in Condition cards and a simple decision gateway.
Objectives
Place the plot/area on a condition scale: intact → processed/semi-intact → deteriorated/degraded .
Clarify the priority of measures: avoid/limit if intact, restore/enhance if processed, restore/densify on grey areas if degraded.
Deliver Condition card + decision gate (go/adjust/no) that controls the next module.
What do we mean by ecological condition?
The feasibility study describes a gradient from intact ecosystems (high biodiversity and functioning ecological processes) via cultivated areas to degraded systems with loss of functions (see image on the right). Understanding where the site lies on this scale is crucial for the correct choice of measures and opt-outs.
Key characters in fields (indicators):
Intact: continuous habitat types, little technical intervention, continuity in vegetation/soil, species richness.
Processed/semi-intact: traces of operation or infrastructure (forest road, logging areas, pasture), but still partially ecologically functional.
Impaired/degraded: severe terrain encroachment (extractions/gravel pits, industrial areas), interrupted ecoflows, degraded soil/water.
PS! Remember that an ecosystem can look untouched, but still be disturbed. For example, an old forest that has been selectively logged, or a mountainous area with many hiking trails and cabins, may have reduced ecological function, even though it looks "natural".
We can say that an intact ecosystem is an ecological system where the interaction between organisms (plants, animals, microorganisms) and their physical environment remains unaffected or only minimally affected by humans, and where the original structure and function of the ecosystem is preserved.
The Norwegian Species Database defines a holistic ecosystem as an ecosystem with intact function, that is, with a complete food chain, diaspore bank, decomposers and biotic relationships such as mycorrhiza.
Good examples
Hamra National Park – "Intact ecosystem"
What does the case show?
An area with high natural quality and a coherent green structure. The example illustrates that preservation and very careful adaptation are the main rule in an intact state.
This concretizes opt-out: when the mapping points towards intact nature, the focus shifts from development to buffers, traffic management and possibly nature-friendly experience design.
What can be transferred to holiday home fields?
Use the condition assessment as a stop sign: avoid locating in intact zones.
If something must be done: gentle measures (narrow crossings, controlled traffic, no mass movement).
Gravel roof – "Deteriorated/degraded"
What does the case show?
The study uses gravel roofs as a typical degraded ecosystem: extensive encroachment on terrain and vegetation, disruption of ecological functions, and risk of pollution/erosion.
It shows how condition = measures: on degraded surfaces, the first priority should be nature restoration, while new interventions (technical functions, parking, energy infrastructure) are concentrated here rather than in intact areas.
What can be transferred to holiday home fields?
Add densification/engineering to existing disturbances; free up intact zones.
Combine development with restoration (revegetation, water balance, edge zones) and monitor the effect over time.
Questions that should be discussed in the project
What indicators indicate that the site is intact/processed/deteriorated? (show photo log)
Which ecological connections (corridors, edge zones, waterways) must be protected to preserve function?
Where can we place technical functions without introducing new interventions? (prioritize gray areas)
What restoration measures can raise the eco-condition one level (e.g. erosion control, revegetation, open waterways)?
What risks (floods, landslides, contaminated soil) accompany the different parts of the plot – and how does that affect the decision?
Ready-to-use "decision key"
Intact: No new interventions → possibly very gentle adaptation.
Edited: Build only if measures enhance eco-functions; mandatory restoration + damage reduction.
Degraded: Restore first ; gather new functions here (parking/energy/WA), not in intact nature.
Proposal for role distribution (with deliverables)
SME (developer/contractor)
Condition card (photo + justification) for subzones (intact/processed/deteriorated).
Proposal for opt-out + localization of functions on disturbed surfaces.
Municipality/administration
Validation of condition (against consideration zones/plan status) + decision gate (go/adjust/no).
Requirements for restoration/follow-up where measures are considered in processed/degraded zones.
Subject matter experts (biologist/hydrologist/landscape architect)
Independent assessment of critical findings (e.g. endangered habitats/species, water balance).
Advice list for customized measures per condition + measurement indicators for follow-up.