Humidity controllable soil respiration culture bottle

Abstract

The invention discloses a humidity controllable soil respiration culture bottle, relating to the technical field of culture bottles. The humidity controllable soil respiration culture bottle specifically comprises a culture bottle and a reagent bottle, wherein the reagent bottle is placed on one side of the culture bottle, culture soil is paved on the inner bottom part of the culture bottle, a bottle mouth of the culture bottle is plugged with a first rubber stopper, a drying pipe, a water injection pipe, a first air outlet pipe, an air inlet pipe and a U-shaped pipe vertically penetrate the interior of the first rubber stopper, the water injection pipe is arranged on the left side of the drying pipe, and the first air outlet pipe is arranged on the left side of the water injection pipe. The humidity controllable soil respiration culture bottle solves the problem of oxygen consumption in the cultivation process of a soil respiration culture device, realizes external sampling, ensures the relative sealing performance of the interior of the culture device during the cultivation process, and removes the interference of air during sampling, so that the experimental data is more precise; meanwhile, the soil respiration culture bottle creates the dry-wet alternate environmental condition in the soil cultivation process.

Description

technical field [0001] The invention relates to the technical field of culture bottles, in particular to a soil respiration culture bottle with controllable humidity. Background technique [0002] In recent years, climate change and greenhouse gas emissions have received more and more attention. Model predictions show that global climate change will lead to changes in the pattern, and the frequency of heavy rainfall events and drought events will be higher in the future. Therefore, the surface soil will experience More frequent dry-wet alternation, this unprecedented change in dry-wet alternation may greatly affect soil respiration and change greenhouse gas emissions. Therefore, understanding the mechanism of soil respiration changes under dry-wet alternation conditions is crucial to future climate change influence is crucial. [0003] In order to better study the mechanism of soil respiration, researchers often use the soil culture method in the laboratory. This method can...

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Problems solved by technology

[0004] However, the previous soil cultivation devices have a simple structure and are not precise enough. Gas sampling is easily disturbed by the air, resulting in inaccurate experimental data. Or during the sampling process, it is difficult to remove CO in the air 2 Therefore, there is an urgent need for a soil culture device that can accurately collect gas samples

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