R
Data and Resources
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R
the basic reproduction number (also called the ‘basic 0 reproduction ratio’...
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Rabies
A vaccine-preventable, zoonotic, viral disease. Once clinical symptoms...
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Radiative forcing
A measure of the net change in the energy balance of the Earth with space,...
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Rainfall erosivity
The ability of rainfall to cause soil detachment and transport.
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Rainfed rice
Rainfed rice is the crop grown either directly or indirectly with local...
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Rapid environmental assessment
A tool developed by FAO to prioritize pesticide contaminated sites for...
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Raw water
Intake water before any treatment or use.
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Reach
A reach differs from crossover in that a reach refers to a long straight...
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Real additionality
For a CDM project, emissions reductions must be beyond - or in addition to –...
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Recharge
Water seeping into an aquifer intermittently during and immediately following...
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Recharge area
An area of permeable soils where rainwater soaks through the ground to reach...
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Recolonization
The recolonization of indigenous species in an impacted aquatic system.
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Recombinant DNA
The joining together of DNA molecules from different organisms and inserting...
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Recyclability
Ability of a material to be captured and separated from a waste stream for...
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Recycled water
Water that is used more than one time before it passes back into the natural...
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Red list index
It provides a clearer view of real trends within different taxonomic groups,...
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REDD/REDD+
Reducing Emissions from Deforestation and Forest Degradation in Developing...
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Reduction potential
The reduction/oxidation (redox) potential (also known as Eh) is a chemical...
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Reduction/reuse/recycling (3 R'S)
Reductions in the intensity of material, energy, and pollution including...
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Reference slope
The term is used in erosion modelling for a series of measurement points...
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Reforestation
Planting of forests on lands that have previously contained forest, but have...
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Refuse derived fuel
A fuel that is produced from material that would otherwise be regarded as...
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Regenerative agriculture
Regenerative agriculture is an inclusive agroecosystems approach for...
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Regression-kriging
A spatial interpolation technique that combines a regression of the dependent...
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Regulating services
The benefits obtained from the regulation of ecosystem processes, including,...
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Remote sensing
Collection of data about an object from a distance. In the environmental...
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Renewable energy source
An energy source that does not rely on finite stocks of fuels. The most...
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Renewable substitute
Non-renewable resources should be depleted at a rate equal to the rate of...
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Representative concentration pathway
Scenarios that include time series of emissons and concentrations of the full...
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Reproductive health
A state of complete physical, mental and social well-being (and not merely...
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Reproductive rights
They include, among others, the right to decide the number, timing and...
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Reproductive role
Encompasses childbearing/rearing responsibilities and domestic tasks. It...
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Reservoir
The habitat in which the agent normally lives, grows, and multiplies....
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Reservoir host
A primary host that harbours a pathogen but shows no ill effects and serves...
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Residual soil
Some mineral soils develop from a parent material which is broken down on...
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Resilience (ecological)
the capacity of a system to absorb disturbance and reorganize while...
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Resilience-based management
The focus on the processes that are essential to the ability of corals to...
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Resistance
The capacity of a system to withstand the impacts of drivers without...
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Resource efficient technology
Cleaner and resource efficient technologies decrease material inputs, reduce...
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Resource management activities
Activities related with the management of natural resources (monitoring,...
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Resource productivity
(1) It is the most fundamental of competitive advantages: if the production...
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Responsible fisheries
The concept "encompasses the sustainable utilisation of fishery resources in...
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Reverse channel
Channels that recapture, recycle and reuse the remnant value found in waste...
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Reverse osmosis
Technique for purifying water by forcing it under pressure against a...
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Rheic qualifier
Bog peat saturated predominantly with groundwater or flowing surface water.
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Rhizosphere
The soil region in the immediate vicinity of growing plant roots.; It...
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Rift Valley Fever (RVF)
A mosquito-borne viral zoonotic disease that affects sheep, goats, cattle and...
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Rill erosion
The removal of soil by surface flows that either form small, shallow channels...
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Riparian
Related to or located on the bank of a natural watercourse, usually a river,...
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Risk prevention
Strategies that are implemented before a risk event occurs. Reducing the...
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River fragmentation
Degree to which river connectivity and flow regimes have been altered,...
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River oxbow
A bow-shaped bend in a river.
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Riverine
Relating to or situated on a river or riverbank; riparian.
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Rivulet
A small stream.
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RNA viruses
are those containing RNA as its genetic material. The RNA may be single...
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Rotating biological contactor
A secondary biological treatment process which utilizes a rotating shaft...
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Run-off
A portion of rainfall, melted snow or irrigation water that flows across the...
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Runoff ratio
The fraction of precipitation that falls on a given domain over a specified...
Additional Info
| Field | Value |
|---|---|
| Source | https://wesr-staging.azurewebsites.net/glossary/ajax/ajax.searchbyindex.php?q=R |
| Author | UNEP GEO |
| Maintainer | UNEP GEO |
| Last Updated | January 26, 2023, 06:35 (UTC) |
| Created | September 13, 2022, 18:29 (UTC) |
| GUID | unep-geo-glossary-letter-r |
| Issued | 2022-09-03 10:17:05 |
| Language | en |
| Modified | 2022-11-09 17:41:18 |
| Publisher name | UNEP GEO |
| Theme | Glossary |
| data_type | webpage |
| spatial | Global |