Device for determining soil breathing rate in laboratory and method for determining soil breathing rate

A soil respiration and laboratory technology is applied in the field of devices for measuring soil respiration rate, which can solve the problems of large standard error and time-consuming operation of the device for measuring soil respiration rate, and achieve the effects of improving accuracy, speeding up test progress and saving time.

Inactive Publication Date: 2014-05-07
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing device for measuring the soil respiration rate is time-consuming and has a large standard error in measuring the soil respiration rate with a traditional device, and provides a device for measuring the soil respiration rate in the laboratory and using it to measure the soil respiration rate. rate method

Method used

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  • Device for determining soil breathing rate in laboratory and method for determining soil breathing rate
  • Device for determining soil breathing rate in laboratory and method for determining soil breathing rate
  • Device for determining soil breathing rate in laboratory and method for determining soil breathing rate

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specific Embodiment approach 1

[0044] Specific embodiment one: a kind of device of laboratory measurement soil respiration rate in this embodiment is made up of cultivation device and absorption device;

[0045] The culture device is composed of a culture bottle (1) and a rubber stopper (5); the wall of the culture bottle (1) has an inner ground branch pipe (3); the rubber stopper (5) is sealed on the mouth of the culture bottle (1);

[0046] The absorption device is composed of an absorption bottle (2) and a rubber stopper (6); the wall of the absorption bottle (2) has an outer ground branch pipe (4); the rubber stopper (6) is sealed at the mouth of the absorption bottle (2); the outer ground branch pipe (4) is inserted into the inner ground branch pipe (3) to form an airtight connection.

[0047] Working principle of this embodiment: soil respiration is mainly composed of soil microbial respiration. After a period of cultivation, the number and activity of microorganisms in the soil change, so that the ...

specific Embodiment approach 2

[0049] Embodiment 2: The difference between this embodiment and Embodiment 1 is that both the culture bottle and the absorption bottle are made of glass materials. Others are the same as the first embodiment.

specific Embodiment approach 3

[0050] Specific embodiment three: in the present embodiment, the method for measuring soil respiration rate with a kind of device that measures soil respiration rate in the laboratory is to realize according to the following steps: realize according to the following steps:

[0051] 1. Solution preparation: prepare sodium hydroxide solution with a concentration of 0.5mol / L~1mol / L, barium chloride with a concentration of 1.5mol / L~2mol / L, and a phenolphthalein indicator with a mass concentration of 1% at a concentration of 0.25 mol / L~0.5mol / L hydrochloric acid solution, borax standard solution with a concentration of 0.125mol / L~0.25mol / L;

[0052] 2. Prepare the device for measuring the soil respiration rate in the laboratory:

[0053] ①. Prepare the culture device and the control device: Weigh 20g~30g of soil and put it into the culture bottle (1), so that the soil evenly covers the bottom of the culture bottle (1), and then adjust the relative water holding capacity of the soil...

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Abstract

The invention relates to a device for determining a soil breathing rate in a laboratory and a method for determining the soil breathing rate, and in particular relates to a device for determining the breathing rate of the soil and a method for determining the soil breathing rate by utilizing the device, and the device and the method are used for solving the problems that the existing device for determining the soil breathing rate that time is wasted in operation and the standard error is large. The device consists of a culture device and an absorption device, wherein the culture device consists of a culture bottle and a rubber plug, the absorption device consists of an absorption bottle and a rubber plug, the culture bottle is connected with the absorption bottle by virtue of an inner ground branch pipe and an outer ground branch pipe, and the outer ground branch pipe is inserted into the inner ground branch pipe to form the closed connection. The application method comprises the following steps: I, preparing a solution; II, preparing the device; III, culturing; IV, determining the soil breathing rate; V, re-culturing; VI, re-determining the soil breathing rate, and repeating the steps V and VI for 17 to 56 times to complete the determination. The device and the method are applied to the field of the laboratory analysis.

Description

technical field [0001] The invention relates to a device for measuring the soil respiration rate and a method for measuring the soil respiration rate, belonging to the field of laboratory analysis. Background technique [0002] Human activities (fossil fuel combustion and land use change) trigger a series of global changes. Currently, atmospheric CO 2 The greenhouse gases produced by the increased concentration lead to global warming, causing the melting of ice and snow in the Arctic and Antarctic, and rising sea levels, which will bring a series of environmental problems. Soil carbon pools are the largest in terrestrial ecosystems, and small changes in them can strongly affect atmospheric CO 2 Therefore, the research on the rate of soil gas release has attracted people's attention, and its research methods and means have been deepened, so as to clarify the impact of soil respiration on greenhouse gases. As an important process of soil carbon pool turnover, soil respirati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/16G01N1/28
Inventor 尤孟阳李禄军韩晓增
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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