Process · Glossary

Cascade Order

Also: BROWN BLUE GREEN BLACK cascade, recovery cascade, diagnostic cascade

Definition

The diagnostic reading order BROWN -> BLUE -> GREEN -> BLACK: the givens of the place first, then water, then living systems, then carbon. It reads the land in the order it actually functions, and stops effort going downstream while upstream processes are still broken.

Authority EcoIntel

Last reviewed June 2026

The Cascade Order is BROWN -> BLUE -> GREEN -> BLACK. It is the order in which every EcoIntel diagnosis reads a piece of land, and it exists for two reasons: to read the land in the order it actually functions, and to stop land managers spending effort downstream while the upstream processes are still broken.

The BLUE, GREEN and BLACK sequence comes from the work of Darren Doherty and the Regrarians platform, which is itself built on the keyline design of P.A. Yeomans. BROWN is EcoIntel’s addition. Holistic management calls this layer context, but treats it lightly, largely because weather, climate and topography are hard to measure on the ground. Those are exactly the things satellite and GIS data resolve well, so we made the givens an explicit first stage rather than an assumption.

StageRepresentsWhat recovers hereFix priority
BROWNThe givensNothing. This is what cannot be changedRead first: it sets what is possible here
BLUEWater cycleInfiltration, retention, cyclingOnce cover holds, restore the hydrology
GREENLiving systemsFunctional diversity, soil fauna, stable communityOnce water cycles, build the biology
BLACKSoil carbonOrganic matter, the slow accumulationFollows as a consequence once the first three come right

Each stage depends on the one before it:

  • BROWN: the givens. Climate, weather, topography, ecoregion, brittleness, and the human management frame the land sits inside. This stage recovers nothing, because none of it can be changed. It is read first because it sets what is possible and what “good” even means here, so that everything downstream is judged against this land’s own potential rather than an absolute standard. The colour is brown for earth and ground, not because the stage measures bare soil.
  • BLUE: the water cycle. Once the soil is covered, water can begin to infiltrate, hold and cycle. Until the water cycle works, downstream processes cannot.
  • GREEN: living systems and community dynamics. With cover and water working, biological diversity can develop: functional plant groups, soil fauna, the relationships that make an ecosystem stable.
  • BLACK: soil organic matter and carbon. The long tail. Carbon accumulates as the consequence of the other three working well. It is the slowest indicator to move, and the one that fails most slowly too.

The cascade matters because each stage depends on the previous. EcoIntel diagnoses where each parcel sits on the cascade and recommends the upstream fix first. A field with healthy cover but a degraded water cycle gets a hydrological intervention before species-diversity work; and so on.

Bare ground is a priority rule inside the cascade, not a stage of it. Exposed soil leaks water, energy and mineral capacity at once, so where it persists, restoring cover comes before anything downstream: there is no point planting diverse species into a field that still seals on impact. That rule sits within the BLUE and GREEN work rather than forming a stage of its own.

Brittleness reorders the cascade. The same Land Health Score in a brittle setting and a non-brittle one calls for different first moves, so the sequence is a reading order and a default priority, not a fixed prescription.