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Device and method for acquiring gas from bamboo cavities

A technology of gas collection and bamboo cavity, which is applied in the direction of measuring device, sampling device, sampling, etc., can solve the problems of unable to detect the dynamic change of gas in the bamboo cavity of moso bamboo, unable to measure continuously for a long time, and the measurement data is not accurate enough, so as to achieve convenient long-term Monitoring, low cost, accurate and reliable data

Pending Publication Date: 2018-10-16
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can achieve the purpose of measuring the gas in the bamboo cavity of Moso bamboo, it destroys the activity of the bamboo, and the gas in the bamboo cavity is easy to escape during the process of cutting the bamboo stalk, resulting in inaccurate measurement data.
Moreover, this method can only perform one-time destructive sampling, and cannot perform continuous long-term measurements of the same bamboo, nor can it detect the dynamic changes of the gas in the bamboo cavity.
At present, there is still a lack of collection of CO in the bamboo cavity of moso bamboo 2 efficient way of gas

Method used

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  • Device and method for acquiring gas from bamboo cavities
  • Device and method for acquiring gas from bamboo cavities
  • Device and method for acquiring gas from bamboo cavities

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Collection of CO in the cavity of Moso bamboo 2 When using air, use an electric drill with a diameter of 2 mm to drill small holes in the bamboo stalks of Moso bamboo (such as Figure 4 shown), and then use sealant (2) to fix the rubber gasket (1) on the small hole (such as Figure 5shown), and align the center of the rubber gasket with the small hole. After stabilizing for at least 24 hours, use the needle of the gas sampling cartridge (3) to pierce the small hole to extract 20mL of gas (such as Figure 6 shown), injected into the marked vacuum-sealed gas sampling bag (4) (such as Figure 7 shown), brought back to the laboratory to measure the CO in the gas bag with a gas chromatograph 2 Concentration, so as to observe the CO in the cavity of Moso bamboo 2 dynamic features.

Embodiment 2

[0042] Adopt the method for embodiment 1 to collect gas in bamboo cavity, detect, and detection result is as shown in table 1.

[0043] Table 1 CO in bamboo cavity and bamboo forest 2 Contrastive Analysis of Daily Changes of Concentration (ppm)

[0044]

[0045] The results in Table 1 show that the CO in the bamboo cavity 2 The gas concentration is much higher than the CO in the bamboo forest 2 The gas concentration showed a rapidly decreasing diurnal variation trend, which was just opposite to the diurnal variation trend of the photosynthetic rate of Phyllostachys pubescens, indicating that the CO in the bamboo cavity 2 May be used in the photosynthesis of bamboo culms, which provides a basis for the future study of CO in photosynthesis of bamboo culms of Moso bamboo 2 The source provides an important scientific basis.

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Abstract

The invention relates to a device and a method for acquiring gas from bamboo cavities and belongs to the technical field of gas acquisition from the bamboo cavities. The device for acquiring gas fromthe bamboo cavities comprises a gasket (1), a sealant (2), a gas acquisition tube (3) and a gas acquisition bag (4), wherein the sealant (2) is used for fixing the gasket (1) on the outer wall of a bamboo stalk. The provided device is made of simple materials, is low in cost, cannot affect normal growth of bamboos when used for operation and can efficiently acquire gas from the bamboo cavities. The device can realize long-term monitoring of continuous dynamic gas change in the bamboo cavities of a large quantity of bamboos and is high in generalization performance and wide in application range.

Description

technical field [0001] The invention relates to the technical field of bamboo cavity gas collection, in particular to a device and method for collecting gas in a bamboo cavity. Background technique [0002] Moso bamboo is an important carbon sink bamboo species in terrestrial ecosystems, it can absorb CO 2 , and has long-term storage capacity. Bamboo culms of Moso bamboo have a special biological structure, and their cavity is hollow, containing a large amount of CO 2 gas. Therefore, to study the CO in the cavity of Moso bamboo 2 The dynamic change of gas is of great scientific significance for understanding the carbon emission characteristics and internal mechanism of bamboo forests, and it is a new breakthrough point. If an effective, convenient and long-term method for measuring CO in bamboo cavity can be developed 2 The gas concentration and its dynamic change method can provide scientific basis and technical support for the study of the source of carbon emissions f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/24
CPCG01N1/2226G01N1/24G01N2001/242
Inventor 宋新章雷赵枫李全
Owner ZHEJIANG FORESTRY UNIVERSITY