“The SEEA Ecosystem Condition Typology (SEEA ECT) is a hierarchical classification system for organising data on ecosystem condition, consisting of six classes grouped into three main groups (abiotic, biotic and landscape-level ecosystem characteristics).”

SEEA-EA 2021, Table 5.1.
Note: Ecosystem condition typology (ECT): For a full list of SEEA ECT groups and classes, please see Table 5.1 in SEEA-EA 2021.