Skip to main content

Glossary definitions

The IPBES glossary terms definitions page provides definitions of terms used in IPBES assessments. Some definitions in this online glossary have been edited for consistency. Please refer to the specific assessment glossary for citations/authorities of definitions. 

We invite you to report any errors or omissions to [email protected].

Concept Definition Deliverable(s)
non-timber forest product

Any biological resources found in forests other than timber, including fuel wood and small wood, nuts, seeds, oils, foliage, game animals, berries, medicinal plants, fish, spices, barks, and mushrooms, among others (Prasad, 1993).

Global assessment (1st work programme)
non-timber resource

A multitude of natural products (excluding timber) selectively harvested from the terrestrial environment for subsistence and commercial purposes.

Land degradation and restoration assessment
normative scenarios

see target- seeking scenarios.

Scenarios and models assessment
norms

Norms are rules about what is accepted behaviour. They are supporting underlying values as defined by a society. They are therefore ‘ought to’ statements defining what one may or may not do. Examples are rules about care for nature and what is just treatment of others.

Values assessment
nox

A generic term for the nitrogen oxides most relevant for air pollution (NO and NO2) (Omidvarborna et al., 2015).

Global assessment (1st work programme)
nutrient availability

Nutrients that can be extracted by plant roots, generally from the soil (Silver, 1994).

Global assessment (1st work programme)
nutrient cycle

A repeated pathway of a particular nutrient or element from the environment through one or more organisms and back to the environment. Examples include the carbon cycle, the nitrogen cycle and the phosphorus cycle.

Americas assessment
nutrient cycling

The processes by which elements are extracted from their mineral, aquatic, or atmospheric sources or recycled from their organic forms, converting them to the ionic form in which biotic uptake occurs and ultimately returning them to the atmosphere, water, or soil.

Sustainable use assessment, Global assessment (1st work programme)
qualitative storyline

Articulation of narratives describing plausible futures based on or relating to measures of the quality of key compnents rather than their quantity (c.f. Quantitative approaches).

Asia-Pacific assessment
quality of life

Within the context of the IPBES Conceptual Framework - good quality of life refers to the achievement of a fulfilled life, a notion which may vary significantly across societies and cultures. There is a common understanding that quality of life is composed of both shared common aspects across cultures (food security) and contextual aspects (e.g. self-determination), which can be assessed objectively (e.g. caloric intake) or subjectively (e.g. life satisfaction) applying quantitative and qualitative indicators. Good quality of life is generally portrayed through material conditions (e.g. level of food availability) as well as through individual aspirations (e.g. personal; professional; spiritual) and capabilities (e.g. education) for people to live in accordance to what they themselves consider to be “a good life”, which can differ across cultures, contexts and individuals. The role of nature in achieving a good quality of life is complex and heterogeneous, and depends on the social-ecological context, and on the way people portray themselves in relation to nature.

Values assessment
quantitative model

Statistical or other analytical descriptions of processes defined by quantities or metrics.

Asia-Pacific assessment