Indoor culture gas collection system and collection method

Abstract

The invention discloses an indoor culture gas collection system and a collection method, and belongs to the technical field of soil microorganism respiratory metabolism gas collection. Gas circulating pumps are arranged on two gas circulating pipes; the electromagnetic valves are arranged on the two gas circulating pipes; the main controller is electrically connected with the gas circulating pump, the electromagnetic valve, the timer and the data storage module, the gas circulating pump, the electromagnetic valve and the timer are started, the timer starts timing, and when the time recorded by the timer reaches the set time of the main controller, the electromagnetic valve and the gas circulating pump are both closed; the invention further discloses a collection method of the gas collection system. The space gas exchange function of the gas collection bottle and the gas collection bottle can be achieved, real-time synchronization of gas concentrations and components of two spaces is ensured, a plurality of branch devices can be additionally installed on a main machine circulation gas circuit, contrast experiments can be conveniently conducted, the experiment time can be accurately set, and the experiment method is easy to operate and high and accurate in automation control degree.

Description

technical field [0001] The invention relates to the technical field of soil microbial respiration and metabolic gas collection, in particular to an indoor culture gas collection system and a collection method. Background technique [0002] Soil is a rich germplasm resource bank, and soil respiration is an important indicator to characterize soil quality and soil fertility, and it can also reflect the stability of ecosystems under environmental changes. Carbon is one of the most abundant elements in soil and has an important impact on the atmospheric environment. The accurate and quantitative method of gas collection and measurement can provide guidance for the dynamic changes of carbon pools and provide theoretical basis for carbon neutralization research. . Soil gases, especially CO 2 Significant change gradients occur in a short period of time, therefore, the development of a collection system that can automatically and accurately collect soil respiration gases is import...

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Problems solved by technology

[0003] The gas well method is the oldest and most common technique for measuring the concentration of soil gas. In practical applications, the soil gas can be collected into the gas collection bottle through the gas collection bottle. However, due to the inability to ensure the gas concentration and The composition changes synchronously, so the gas well method cannot obtain accurate experimental results in real time, so it is impossible to collect soil gas regularly for a long time

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