D
Data and Resources
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data deficient
A taxon is data deficient when it has been categorized as offering...
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decent rural employment
Decent rural employment refers to any activity, occupation, work, business or...
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degradation
Any combination of loss of soil fertility, absence of forest cover, lack of...
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Dendroenergy
All energy derived from primary and secondary solid, liquid and gaseous...
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Desertification
Land degradation in arid, semi-arid and dry sub-humid areas resulting from...
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detritusphere
Environment surrounding decomposing litter.
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diagnostic horizon
Diagnostic horizons are quantitatively defined features used in classification.
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diatom
A class of unicellular algae (Bacillariophyceae) that are widespread on soil...
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Dielectric heating
Dielectric heating uses electromagnetic waves – such as microwaves (MW) or...
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differential impact
Sex and gender-specific vulnerabilities determine the differential impacts of...
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Digitized Soil Map of the World
The Digitized Soil Map of the World, at 1:5.000.000 scale, is in the...
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direct driver
It is a driver that unequivocally influences ecosystem processes and can...
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direct-use value
Value derived from marketed goods and services, normally involving private...
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Disability adjusted life years Exposure
Disability Adjusted Life Year (DALY) can be thought of as a year of ‘healthy’...
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Disaggregation
1) To separate into component parts. 2) The breakdown of observations,...
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dished channel fish pass
A type of fish pass suited only to low weirs (not exceeding 5 feet in height)...
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distilled water
Water that has been freed of dissolved or suspended solids and from organisms...
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DNA virus
A virus containing DNA as its genetic material and using a DNA–dependent DNA...
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Domestic material consumption
A standard material flow accounting (MFA) indicator and reports the apparent...
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Downstream
Away from the source or with the current; In the direction of a stream's...
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DPSIR Framework
Represents a systems-analysis view in which the driving forces of social and...
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drained area
The area equipped with subsurface or open drains.
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Drawdown
Lowering of the water table or piezometric surface caused by the extraction...
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Drip irrigation
Sometimes called trickle irrigation and involves dripping water onto the soil...
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Driver
The overarching socio-economic forces that exert pressures on the state of...
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Droplet transmission
Respiratory infections can be transmitted through droplets of different sizes...
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Dry deposition
Deposition of dust onto the land surface through natural settling of...
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Drylands
Areas characterized by lack of water, which constrain two major, linked...
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Dual-pol
Dual-polarized radar technology.
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Duff layer
Partially decomposed material above the mineral soil and beneath the litter...
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Dumas dry combustion method
This method determines total carbon, representing all chemical forms of C in...
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Dust bowl
An area of land where vegetation has been lost and soil reduced to dust and...
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Dust haze
Dust which resides in the atmosphere from a previous dust storm.
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Dust storm
The result of terminal winds raising large quantities of dust into the air...
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Dust whirls (dust devils)
Whirling columns of dust moving with the wind.
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dynamic conservation
A initiative that emphasizes a balance between conservation, adaptation and...
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dynamic replacement
The replacement of soil organic carbon lost by erosion by new carbon input...
Additional Info
| Field | Value |
|---|---|
| Source | https://wesr-staging.azurewebsites.net/glossary/ajax/ajax.searchbyindex.php?q=D |
| Author | UNEP GEO |
| Maintainer | UNEP GEO |
| Last Updated | January 26, 2023, 06:24 (UTC) |
| Created | September 13, 2022, 18:20 (UTC) |
| GUID | unep-geo-glossary-letter-d |
| Issued | 2022-07-05 12:20:22 |
| Language | en |
| Modified | 2022-11-09 17:41:18 |
| Publisher name | UNEP GEO |
| Theme | Glossary |
| data_type | webpage |
| spatial | Global |