Those aspects(components/processes/functions) of ecosystems, human health, and environmental welfare considered to be important and potentially at risk from human activity or natural hazards. Similar to the term "valued environmental components" used in environmental impact assessment.
VALUED ENVIRONMENTAL ATTRIBUTES/COMPONENTS
Meaning of VALUED ENVIRONMENTAL ATTRIBUTES/COMPONENTS in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012