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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)
social responsibility

Refers to transparent social practices that are based on ethical values, compliance with legal requirements, and respect for people, communities, and the environment.

Africa assessment
social safety net

Social welfare services provided by a community of individuals at the state and local levels. These services are geared toward eliminating poverty in a specific area. These services may include housing re- assignment, job placement, subsidies for household bills, and other cash equivalents for food. Social safety net works in conjunction with a number of other poverty reduction programs with the primary goal of reducing/preventing poverty.

Sustainable use assessment
social values

Social values refer to value indicators at a social scale, such as social willingness to pay in economics. They can be established by aggregation from individual values through analytical procedures, or through social processes, such as deliberative valuation, that lead to shared social values.

Values assessment, Values assessment
social welfare

The condition of a society emphasizing happiness and contentment; social welfare relates to how individuals use their relationships to other actors in societies for their own and for the collective good; it has both material elements and wider spiritual and social dimensions.

Global assessment (1st work programme), Sustainable use assessment
socio-ecological system

Social-ecological systems are complex adaptive systems in which people and nature are inextricably linked, in which both the social and ecological components exert strong influence over outcomes. The social dimension includes actors, institutions, cultures and economies, including livelihoods. The ecological dimension includes wild species and the ecosystem they inhabit.

Sustainable use assessment
social-ecological resilience

The capacity of a social-ecological system to absorb or withstand perturbations and other stressors such that the system remains within the same regime, essentially maintaining its structure and functions. It describes the degree to which the system is capable of self-organization, learning and adaptation.

Land degradation and restoration assessment
societies

Aggregations of people involved in persistent social interactions or sharing geographical or social territories, often with individual political authorities and dominant cultural expectations.

Asia-Pacific assessment
socio-cultural value

Values shared by people in groups and/or values that inform shared identity of a particular group.

Scenarios and models assessment
socio-ecological production landscapes and seascapes

Dynamic mosaics of habitats and land uses where the harmonious interaction between people and nature maintains biodiversity while providing humans with the goods and services needed for their.

Sustainable use assessment
socio-ecological production landscapes and seascapes

Dynamic mosaics of habitats and land uses where the harmonious interaction between people and nature maintains biodiversity while providing humans with the goods and services needed for their livelihoods, survival and well-being in a sustainable manner.

Global assessment (1st work programme)
socio-ecological system

A bio-geo- physical unit and its associated social actors and institutions. Socio-ecological systems are complex and adaptive and are delimited by spatial or functional boundaries surrounding particular ecosystems and their specific context.

Global assessment (1st work programme), Scenarios and models assessment
socio-ecological system

A concept used in a variety of analytical approaches intended to examine the relationship between people and nature as inter-linked, recognizing that humans should be seen as a part of, not apart from, nature, and nature as inter-linked to social systems.

socio-economic driver

see indirect drivers.

Scenarios and models assessment
socio-ecological system

An ecosystem, the management of this ecosystem by actors and organizations, and the rules, social norms, and conventions underlying this management.

Land degradation and restoration assessment, Africa assessment, Asia-Pacific assessment, Americas assessment, Europe and Central Asia assessment
soil

The upper layer of the Earth’s crust transformed by weathering and physical/ chemical and biological processes. It is composed of mineral particles, organic matter, water, air and living organisms organized in genetic soil horizons.

Land degradation and restoration assessment
soil acidification

Soil acidification is caused by a number of factors including acidic precipitation and the deposition from the atmosphere of acidifying gases or particles, such as sulphur dioxide, ammonia and nitric acid. The most important causes of soil acidification on agricultural land, however, are the application of ammonium-based fertilizers and urea, elemental S fertilizer and the growth of legumes.

Land degradation and restoration assessment
soil biodiversity loss

Decline in the diversity of (micro- and macro-) organisms present in a soil. In turn, this prejudices the ability of soil to provide critical ecosystem services.

Land degradation and restoration assessment
soil compaction

An increase in density and a decline of porosity in a soil that impedes root penetration and movements of water and gases.

Global assessment (1st work programme), Land degradation and restoration assessment, Americas assessment
soil compaction

Defined as an increase in density and a decline of porosity in a soil that impedes root penetration and movements of water and gases.

Europe and Central Asia assessment
soil contamination

An increase of toxic compounds (heavy metals, pesticides and so on) in a soil that constitute, directly or indirectly (via the food chain), a hazard for human health and/or for the provision of ecosystem services assured by the soil.

Land degradation and restoration assessment
soil degradation

The diminishing capacity of the soil to provide ecosystem goods and services.

Global assessment (1st work programme), Land degradation and restoration assessment
soil degradation

The diminishing capacity of the soil to provide ecosystem goods and services as desired by its stakeholders.

Americas assessment, Europe and Central Asia assessment, Global assessment (1st work programme), Global assessment (1st work programme)
soil ecosystem function

A description of the significance of soils to humans and the environment. Examples are: (i) control of substance and energy cycles within ecosystems; (ii) basis for the life of plants, animals and man; (iii) basis for the stability of buildings and roads; (iv) basis for agriculture and forestry; (v) carrier of genetic reservoir; (vi) document of natural history; and (vii) archaeological and paleo-ecological document.

Land degradation and restoration assessment
soil fertility

The capacity of a soil to receive, store and transmit energy to support plant growth. It is the component of overall soil productivity that deals with its available nutrient status, and its ability to provide nutrients out of its own reserves and through external applications for crop production.

Sustainable use assessment
soil fertility

The capacity of a soil to receive, store and transmit energy to support plant growth. It is the component of overall soil productivity that deals with its available nutrient status, and its ability to provide nutrients out of its own reserves and through.

soil fertility

The quality of a soil that enables it to provide compounds in adequate amounts and proper balance to promote growth of plants when other factors (such as light, moisture, temperature and soil structure) are favourable.

Land degradation and restoration assessment
soil formation rate

The process of rock weathering though which soil is formed.

Land degradation and restoration assessment
soil health

The continued capacity of the soil to function as a vital living system, within ecosystem and land-use boundaries, to sustain biological productivity, promote the quality of air and water environments, and maintain plant, animal and human health.

Land degradation and restoration assessment
soil organic carbon

A summarizing parameter including all of the carbon forms for dissolved (DOC: Dissolved Organic Carbon) and total organic compounds (TOC: Total Organic Carbon) in soils.

Land degradation and restoration assessment
soil organic matter

Matter consisting of plant and/or animal organic materials, and the conversion products of those materials in soils.

Land degradation and restoration assessment, Europe and Central Asia assessment, Sustainable use assessment
soil organic matter

Matter consisting of plant and/or animal organic materials, and the conversion products of those materials in soils (ISO, 2013).

Americas assessment, Global assessment (1st work programme)
soil pollution

Process of soil contamination by chemicals (fertilizers, petroleum products, pesticides, herbicides, mining) which has affected agricultural productivity and other ecosystem services negatively.

Land degradation and restoration assessment
soil process

Physical or reactive geochemical and biological processes which may attenuate, concentrate, immobilize, liberate, degrade or otherwise transform substances in soil.

Land degradation and restoration assessment
soil quality

Soil quality is a measure of the soil's ability to provide ecosystem and social services through its capacities to perform its functions under changing conditions. Soil quality reflects how well a soil performs the functions of maintaining biodiversity and productivity, partitioning water and solute flow, filtering and buffering, nutrient cycling, and providing support for plants and other structures.

Europe and Central Asia assessment, Sustainable use assessment
soil quality

All current positive or negative properties with regard to soil utilization and soil functions.

Land degradation and restoration assessment
soil salinization

Increase in water-soluble salts in soil which is responsible for increasing the osmotic pressure of the soil. In turn, this negatively affects plant growth because less water is made available to plants.

Land degradation and restoration assessment
soil sealing

The covering of the soil surface with materials like concrete and stone, as a result of new buildings, roads, parking places, but also other public and private space.

Land degradation and restoration assessment
soil stability

The integrity of soil aggregates, degree of soil structural development, and erosion resistance.

Land degradation and restoration assessment
soil structure

The arrangement of soil particles in a variety of recognized shapes and sizes.

Land degradation and restoration assessment
solitary bee

Bees that are not fully social (such as honey bees (q.v.), bumble bees (q.v.) and stingless bees (q.v.)), but are instead solitary or primitively social. There are more than 19,000 species of solitary bee.

Pollination assessment
sovereignty principle

Sovereignty in the sense of contemporary public international law denotes the basic international legal status of a state that is not subject, within its territorial jurisdiction, to the governmental, executive, legislative, or judicial jurisdiction of a foreign state or to foreign law other than public international law. A sovereign entity can decide and administer its own laws, can determine the use of its land and can do pretty much as it pleases, free of external influence (within the limitations of international law).

Land degradation and restoration assessment
spatial downscaling

see downscaling.

Scenarios and models assessment
spatial scale

Comprised of two properties: 1) spatial extent - the size of the total area of interest for a particular study (e.g. a watershed, a country, the entire planet); and 2) spatial grain (or resolution) - the size of the spatial units within this total area for which data are observed or predicted (e.g. fine-grained or coarse-grained grid cells).

Scenarios and models assessment, Pollination assessment
spatial scale

In ecology, spatial scale refers to the spatial extent of ecological processes. The responses of organisms, populations, species or communities to the environment may differ at larger or smaller scales. Choosing the scale appropriate to a given ecological process is crucial to hypothesizing and determining the underlying causes of the processes and effects involved.

specialist species

A species that can thrive only in restrictive environmental conditions and can make use of only a few different (even only one) resources (for example, a flower-visiting insect that lives on the floral resources provided by one plant or a few different plants or a plant that depends on just one or only a few animal species for pollination).

Pollination assessment
species

An interbreeding group of organisms that is reproductively isolated from all other organisms, although there are many partial exceptions to this rule in particular taxa. Operationally, the term species is a generally agreed fundamental taxonomic unit, based on morphological or genetic similarity, that once described and accepted is associated with a unique scientific name.

Land degradation and restoration assessment, Asia-Pacific assessment, Sustainable use assessment, Americas assessment, Europe and Central Asia assessment
species composition

The array of species in a specific sample, community, or area.

Sustainable use assessment, Americas assessment, Europe and Central Asia assessment
species composition

The array of species in a specific region, area, or assembly.

Land degradation and restoration assessment, Global assessment (1st work programme), Asia-Pacific assessment
species distribution model

Species distribution models relate field observations of the presence/absence of a species to environmental predictor variables, based on statistically or theoretically derived response surfaces, for prediction and inference. The predictor variables are often climatic but can include other environmental variables.

Sustainable use assessment, Europe and Central Asia assessment, Americas assessment
species extirpation

The local extinction of a species.

Global assessment (1st work programme)