Ecosystem condition

Ecosystem condition is the quality of an ecosystem, judged by how well it is functioning rather than by how much of it there is. The authoritative definition comes from the United Nations System of Environmental-Economic Accounting, Ecosystem Accounting (the SEEA EA), adopted as an international statistical standard in 2021: condition is “the quality of an ecosystem measured in terms of its abiotic and biotic characteristics”, assessed with respect to its composition, structure and function.

Three things make the term precise. Condition is paired with, and distinct from, extent: extent is the size of the ecosystem asset, condition is the quality of those acres. It is always scored against a reference for the ecosystem type, on a scale running from collapse at the bottom to natural integrity at the top, so a hill farm is judged against what that hill could be, not against a lowland meadow. And it is read across defined characteristics: the SEEA sorts them into physical, chemical, compositional, structural, functional and landscape classes.

Condition is not the same as biodiversity. Biodiversity is the variety of life, typically a species count; condition is whether the system works. A simplified system can still function for a while, and a diverse one can still be in decline. Condition measures the working of the system; biodiversity counts its parts.

Every major nature-disclosure framework now asks organisations to report ecosystem condition, and none of them prescribes a single metric for it. EcoIntel fills that gap with the Land Health Score, a satellite-derived condition score benchmarked to each site’s ecoregion. See the pillar EcoIntel’s Land Health Score as Nature-Condition Metric for the full account.