;Type;From;To;Scope;Method
"Basic aggregations"
1;Spatial;"Ecosystem assets /basic spatial units";"Ecosystem types";"any variables, indicators or sub-indices";"area-weighted arithmetic mean"
2;Thematic;Indicators;Sub-indices;"any ecosystem assets belonging to the same ecosystem type";"(weighted) arithmetic mean"
3;Thematic;Sub-indices;"Ecosystem condition index";"any ecosystem assets belonging to the same ecosystem type";"arithmetic mean"
4;Spatio-thematic;"Ecosystem types/indicators and sub-indices";"Ecosystem accounting area/overall ecosystem condition index";"any ecosystem types belonging to the same biome & reference condition type (natural, anthropogenic...)";"area-weighted arithmetic mean"
"Complementary aggregations"
5;Spatial;"Ecosystem accounting area (smaller)";"Ecosystem accounting area (larger)";"any variables, indicators, sub-indices or indices";"area-weighted arithmetic mean"
6;"Spatio-thematic (cross-cutting indicators)";"Ecosystem types/indicators";"Ecosystem accounting area/index";"any ecosystem types that share some variables with consistent reference levels (i.e. belonging to the same biome & reference condition type (natural, anthropogenic)";"area-weighted arithmetic mean"
7;Temporal;"Temporal aggregations are expected to follow exactly the same rules as such aggregations can be done in SNA accounts – ecosystem condition metrics are not different in this respect."