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Atmosphere vapour gradient sampling device and its application method

A sampling device, water vapor technology, applied in the direction of sampling device, etc., can solve the problem of high cost, and achieve the effect of simple and efficient experimental device

Active Publication Date: 2007-07-18
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, domestic related research rarely involves water vapor sampling, so there is no relevant ideal equipment that can meet this requirement; and the related equipment used abroad is too expensive for most domestic laboratories

Method used

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  • Atmosphere vapour gradient sampling device and its application method
  • Atmosphere vapour gradient sampling device and its application method
  • Atmosphere vapour gradient sampling device and its application method

Examples

Experimental program
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Effect test

Embodiment Construction

[0016] The device has been put into use in the alpine meadow ecosystem of Balang Mountain in Wolong Nature Reserve in Northwest Sichuan, and the effect is good. The experiment was carried out on sunny days, with no wind or little wind, and the relative humidity of the atmosphere was lower than 50%. The pumping time was from 10:00 to 16:00 every day, once every two hours; mm, 1000 mm, 2000 mm, 3500 mm; each pumping lasts 20 minutes, and each time can obtain 0.8-1.5 ml of atmospheric liquid water samples, which is enough for isotope determination and other experiments.

[0017] Its specific use method is as follows:

[0018] The first step is to assemble the instrument. Prepare all parts according to the previous requirements. Two to three people work together to first place the assembled water vapor condensation system in the enclosure at the center of the disc circle on the first floor. If you need to measure other parameters, you can put away related instruments at the sam...

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Abstract

The invention relates to atmospheric aqueous vapor gradient sampling device used in field area with low vegetation without observation tower. It is formed by multilayer shelf unit and condensation system. It is simple, flexible, convenient for filed using, can strictly ensure aqueous vapor original compositions unchanged, supply simple and effective sampling device for developing correlation study in the future.

Description

1. Technical field [0001] The invention belongs to the technical field of ecological engineering. The invention relates to an atmospheric water vapor gradient sampling device which utilizes common materials to collect relatively strict atmospheric water vapor samples according to a certain height gradient in areas lacking observation towers and low vegetation in the field. 2. Background technology [0002] There is a special "substance thin layer" between organisms and the environment in the ecosystem, and its properties are not only directly affected by the external environment and life activities on both sides of it, but also affect the inorganic environment and life activities outside the layer in reverse. This special thin layer of material is called the ecological boundary layer, and it is the key zone for the interaction between the ecosystem and the external environment. For terrestrial ecosystems, it conducts H through the ecological boundary layer at the junction w...

Claims

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Application Information

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IPC IPC(8): G01N1/16
Inventor 安树青崔军徐振杨海波刘玉虹王中生
Owner NANJING UNIV
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