Concept information
TERME PRÉFÉRENTIEL
TULLGREN FUNNEL
DÉFINITION
- A device used to extract small invertebrate animals from a dry soil sample. The sample is placed in a container with a base made from gauze with a mesh designed to hold soil particles but permit the animals to pass. The container is arranged over a funnel, with a light above. The heat causes the animals to move away from the top of the sample, through the gauze sheet and into the funnel from which they can be collected. Most species are collected after two hours, but complete extraction takes two-three days. [Encyclopedia.com] Group: Instrument_Details Entry_ID: TULLGREN FUNNEL Group: Instrument_Identification Instrument_Category: In Situ/Laboratory Instruments Instrument_Class: Samplers Instrument_Type: Grabbers/Traps/Collectors Short_Name: TULLGREN FUNNEL End_Group Creation_Date: 2010-04-29 End_Group
CONCEPT GÉNÉRIQUE
URI
https://gcmd.earthdata.nasa.gov/kms/concept/48cb1921-cd98-4dc4-b6cf-0ae5da689b2e
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