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An experimental method for measuring soil respiration under indoor simulated dry-wet alternating response

A soil respiration and experimental method technology, which is applied to the field of soil respiration measurement under the indoor simulated dry and wet alternating response, can solve the problems of cumbersome detection method, large space occupation, inconvenient assembly, etc., and achieves short measurement time, improved accuracy, and manufacturing cost. low effect

Active Publication Date: 2017-12-01
BEIJING FORESTRY UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The described experimental method solves the problems in the prior art that the detection method is cumbersome, the device is expensive, the space is large, and the assembly is inconvenient.

Method used

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  • An experimental method for measuring soil respiration under indoor simulated dry-wet alternating response
  • An experimental method for measuring soil respiration under indoor simulated dry-wet alternating response
  • An experimental method for measuring soil respiration under indoor simulated dry-wet alternating response

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Embodiment 1

[0056] An experimental method for measuring soil respiration under a kind of indoor simulated dry-wet alternating response of the present invention comprises the following steps:

[0057] The first step: select wide-mouth bottle 11 and record its weight, numbering one by one, load quantitative air-dried soil in described wide-mouth bottle 11, and record the gross weight of wide-mouth bottle 11 and air-dried soil; Agent bag 16 is suspended in the wide-mouth bottle 11, and the bottleneck of wide-mouth bottle 11 is provided with the rubber stopper 12 with hole that matches with it, and is arranged on the glass tube 13 in the hole of rubber stopper 12 with hole, and makes glass tube The top and the bottom of 13 are respectively arranged on the both sides of rubber stopper 12 with holes, and the top of described glass tube 13 is sheathed with latex tube 14, and the top of latex tube 14 adopts water-stop clip 15 to block, and jar 11 Form a sealed space, and described jar 11 is place...

Embodiment 2

[0071] Such as Figure 8 As shown, the present invention provides embodiment 2, the experimental method of measuring soil respiration under the described a kind of indoor simulated dry-wet alternating response, and the distinguishing feature of embodiment 1 is: the present embodiment 2 adopts the instrument measurement method to discharge the soil respiration Gas is measured; further, measured by a portable gas analyzer 26; specifically includes:

[0072]The first step: select wide-mouth bottle 11 for use and record its weight, load quantitative air-dried soil in said wide-mouth bottle 11, and record the total weight of wide-mouth bottle 11 and air-dried soil; It is suspended in the jar 11. The mouth of the jar 11 is provided with a matching rubber stopper 12 with holes. The rubber stopper 12 with holes is provided with two holes, and each hole is provided with a matching glass tube. 13, and the top and bottom ends of the glass tubes 13 are respectively arranged on both sides...

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Abstract

The invention relates to an experimental method for measuring soil respiration under an indoor simulated dry-wet alternating response, at least comprising the following steps: the first step: selecting a jar and recording its weight, filling the jar with air-dried soil, and recording the weight of the jar. The total weight of the mouth bottle and the air-dried soil; the desiccant package is suspended in the jar, the mouth of the jar is provided with a rubber stopper with holes, and a glass tube arranged in the hole of the rubber stopper with holes, the glass tube The top of the latex tube is covered with a latex tube, and the top of the latex tube is blocked with a water-stop clamp, and the jar is placed in the temperature control system; the second step: use lye absorption and acid-base titration to absorb the gas discharged from the soil Take measurements. The superior effect of the present invention is: the respiration value of the soil in the specified time can be measured in different experimental designs by the method; the sample measurement of different numbers can be satisfied by the method; the operation is simple, convenient and quick, and the manufacturing cost is low, and it can be used in Common laboratory operations.

Description

technical field [0001] The invention relates to the technical field of an experimental method for measuring soil respiration, in particular to an experimental method for measuring soil respiration under indoor simulated dry-wet alternating response. Background technique [0002] An increase in the concentration of atmospheric carbon dioxide will directly lead to an increase in the absorption of long-wave radiation from the sun by the atmosphere, causing a rise in global temperature and causing severe climate fluctuations. Relevant research institutions predict that doubling the concentration of atmospheric carbon dioxide will increase the global temperature by 2-4°C, especially in the polar regions. The rapid melting of the polar permafrost ice has caused the sea level to rise by 5m within 100 to 200 years, greatly reducing the land area and threatening the living safety of humans and land creatures. Therefore, global warming is a hot issue in the current global environment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N31/16
Inventor 王冬梅李梦寻
Owner BEIJING FORESTRY UNIVERSITY
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