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Multichannel double-circulation soil carbon discharge delta13C observing system

An observation system and double-cycle technology, applied in the field of ecological research, can solve problems such as inability to observe at the same time at multiple points, affect the accuracy of observation, and cannot perform continuous observation

Inactive Publication Date: 2014-09-17
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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  • Abstract
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Problems solved by technology

Moreover, there are many limitations and deficiencies in the observation instruments, such as the inability to perform continuous observation, the inability to observe at multiple points at the same time, the residual gas in the pipeline affects the accuracy of observation, etc., especially when the distance between multiple observation points is large, the above limitations will appear more prominent

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  • Multichannel double-circulation soil carbon discharge delta13C observing system
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Embodiment Construction

[0017] The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:

[0018] A multi-channel dual-cycle soil carbon emission δ 13 C Observation system, which is composed of gas analysis system and circuit control system. The gas analysis system consists of discharge boxes 11, 21, 31, case covers 12, 22, 32, sampling pipes 13, 23, 33, 16, 26, 36, 17, 27, 37, 51, 52, air pumps 14, 24, 34 , 42, three-way solenoid valve 15, 25, 35, multi-channel solenoid valve 41, δ 13 C analyzer 43, single-chip microcomputer 44 is formed. The circuit control system is formed by connecting power supply 7, control lines 62, 63, 64, switches 81, 82, 83, 84, and contacts 91, 92, 93 according to a predetermined circuit.

[0019] A case cover 12 is installed on the discharge box 11, holes are opened on both sides of the discharge box 11, and a sampling pipe 13 is installed to form a loop. An air pump 14 is installed on the sampling pipe 13. Whe...

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Abstract

The invention relates to the field of ecological study, and provides a multichannel double-circulation soil carbon discharge delta13C observing system. The multichannel double-circulation soil carbon discharge delta13C observing system consists of a gas analyzing system and a circuit control system. The gas analyzing system comprises a discharging box, a box cover, a sampling pipe, an air pump, a three-way solenoid valve, a multichannel solenoid valve, a delta13C analyzer and a single chip microcomputer. The circuit control system is formed by connecting a power source, a control line, a switch and a contact according to a given circuit. With the adoption of the multichannel double-circulation soil carbon discharge delta13C observing system, automatic conversion and circular observation among a plurality of channels are realized, so as to remove interference of 'dead air' on an observing result, save observing time of each channel, and improve the efficiency and the accuracy of soil carbon discharge delta13C observation.

Description

technical field [0001] The invention relates to the field of ecological research, in particular to a multi-channel double-cycle soil carbon emission δ 13 C observation system. technical background [0002] Soil carbon emissions are the production and release of CO by soil to the atmosphere 2 It includes several biological and non-biological parts such as soil microbial respiration, plant root respiration, soil animal respiration and chemical oxidation of carbon-containing substances. Global CO emitted into the atmosphere by soil respiration each year 2 The amount is about 68PgC, which is much higher than the amount of carbon released into the atmosphere due to fuel combustion. Therefore, the effect of soil carbon emissions on atmospheric CO 2 Concentration changes have an important effect. Any changes in soil carbon emissions will further affect the global carbon cycle, which is the main factor determining the carbon balance of terrestrial ecosystems. Understanding the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/00G01N1/26G01N1/24
Inventor 于贵瑞温学发王建林孙晓敏张心昱
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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