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Items starting with E


Environmental Assessment

Ecological Approach

An approach to natural resource management that considers the relationships amongall organisms, including humans, and their environment.

Ecological sustainability

The maintenance or restoration of the composition, structure, and processes of ecosystems over time and space. This includes the diversity of plant and animal communities, and the productive capacity of ecological systems and species diversity, ecosystem diversity, disturbance processes, soil productivity, water quality and quantity, and air quality.


The interrelationships of living things to one another and to their environment, or the study ofthese interrelationships.


An arrangement of living and non-living things and the forces that move among them. Livingthings include plants and animals. Non-living parts of ecosystems may be rocks and minerals. Weather andwildfire are two of the forces that act within ecosystems.

Ecosystem diversity

The variety and relative extent of ecosystem types, including their composition, structure, and processes within all or a part of an area of analysis (36 CFR 219.16).

Ecosystem health

The degree to which ecological factors and their interactions are reasonably complete and functioning for continued resilience, productivity, and renewal of the ecosystem.

Ecosystem Management

An ecological approach to natural resource management to assure productive,healthy ecosystems by blending social, economic, physical, and biological needs and values.