Glossary D

The Environmental Glossary. Letter D +++ Popular Articles: 'Development', 'Disease', 'Distribution'

A Dry Cow is a Cow that is not Lactating or secreting milk after it has completed a lactation period following calving.

A dry deposition is the settling of gases and Particles out of the atmosphere. dry deposition is a

A Dry Lot is an open lot that may be covered with concrete, but that has no vegetative cover. Generally used as exercise areas in most of US, but may be used as primary Cow housing in

Deutsch: Trockengebiet / Español: Zona árida / Português: Região árida / Français: Zone aride / Italiano: Zona arida

Dryland in the environmental context refers to regions with low and erratic rainfall, typically receiving less than 500 mm of precipitation annually. These areas include deserts, semi-arid regions, and grasslands, where water scarcity heavily influences both natural ecosystems and human activities. Drylands are home to unique plant and animal species adapted to drought conditions, but they are also vulnerable to degradation due to climate change and unsustainable land use practices.

A Dual-Phase Extraction is active withdrawal of both liquid and gas phases from a well usually involving the use of a vacuum pump.

Deutsch: Ente / Español: pato / Português: pato / Français: canard / Italiano: anatra

Duck refers to any member of the family Anatidae, which also includes swans and geese. These waterfowl are widespread across the world and inhabit a variety of freshwater and sea environments.

A Dump (Dump site) is a site used to dispose of solid waste without Environmental controls.

see also:

German: Deponie
Dump sites are waste Disposal grounds.

Deutsch: Düne / Español: Duna / Português: Duna / Français: Dune / Italiano: Duna

A dune is a natural landform consisting of a hill or ridge of sand built up by wind processes. Dunes typically form in coastal, desert, and other sandy environments where loose sand is transported and deposited by wind. The shape, size, and movement of dunes are influenced by wind direction, wind speed, sand availability, and vegetation.

A Duplicate is a second Aliquot or sample that is treated the same as the original sample in order to determine the precision of the analytical method. (See: aliquot.)