Soil carbon flux detection device
A detection device, carbon flux technology, applied in the direction of measuring device, color/spectral characteristic measurement, material analysis through optical means, etc., can solve the problem of inability to monitor soil respiration for a long time, affect monitoring accuracy, and calculate soil carbon flux Errors and other problems, to achieve accurate CO2 concentration data, ensure accuracy, and facilitate storage and portability
Pending Publication Date: 2022-07-05
HUZHOU TEACHERS COLLEGE
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[0005] The purpose of the present invention is to overcome the problem that the existing soil respiration monitoring instrument based on the principle of a closed air chamber cannot monitor soil respiration for a long time and is easy to cause errors in the calculation of soil carbon flux due to pressure differences and affect the accuracy of monitoring. Soil carbon flux detection device with open structure
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Embodiment 1
[0029] see Figure 1-3 , a soil carbon flux detection device, comprising a connection cavity 1 and an installation shell 2, the upper end of the connection cavity 1 is fixedly connected with the inner side wall of the installation shell 1, and the top of the installation shell 1 is provided with a top cover 3 , the edge of the top cover plate 3 is fixedly connected with connecting ears 4, and the top cover plate 3 is movably connected to the installation shell 1 through the connecting ears 4; An extension block 6 is fixedly connected to the inner wall of the bottom end of the foot 5, the bottom end of the connection cavity 1 is fixedly connected with a hemispherical breathing pool 7, and the bottom end of the hemispherical breathing pool 7 is fixedly connected with the extension block 6. A light inlet 8 and a light outlet 9 are also provided, and a light source signal generating device is installed at the light inlet 8; CO2 is installed inside the hemispherical breathing pool ...
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The invention discloses a soil carbon flux detection device, and belongs to the technical field of soil carbon flux detection. A soil carbon flux detection device comprises a connecting cavity and a mounting shell, a top cover plate is arranged at the top end of the mounting shell, and the top cover plate is movably connected to the mounting shell through connecting lugs; a hemispherical breathing pool is fixedly connected to the bottom end of the connecting cavity, the bottom end of the hemispherical breathing pool is fixedly connected with the extension block, a light inlet and a light outlet are further formed in the hemispherical breathing pool, and a light source signal generating device is installed at the light inlet; a CO2 concentration collecting mechanism is mounted in the hemispherical breathing pool, a foldable bottom surface is fixedly connected to the bottom of the hemispherical breathing pool, and a plurality of air holes are formed in the foldable bottom surface; the problems that an existing soil respiration monitoring instrument based on the closed air chamber principle cannot monitor soil respiration for a long time, soil carbon flux calculation errors are easily caused by pressure difference, and the monitoring accuracy is affected are effectively solved.
Description
technical field [0001] The invention relates to the technical field of soil carbon flux detection, in particular to a soil carbon flux detection device. Background technique [0002] Soil is the largest terrestrial carbon pool on earth, with a carbon storage of about 14-15Pg (1Pg=1015g), which is approximately twice the atmospheric carbon storage (about 750Pg) and three times the terrestrial biological carbon storage (about 560Pg). Soil respiration is the release of CO when the soil is undisturbed 2 It accounts for 60%-90% of the entire terrestrial ecosystem, and it is also the main way for the soil carbon pool to input carbon into the atmospheric carbon pool. The annual CO emissions from soil 2 Up to 50-75Pg, much higher than the annual CO produced by fuel combustion 2 (about 5.2Pg), so any slight change in soil respiration intensity may cause atmospheric CO 2 Large changes in concentration affect the global climate, and accurate monitoring of soil respiration is of grea...
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IPC IPC(8): G01N21/31G01N21/01
CPCG01N21/31G01N21/01
Inventor 贾良权高璐臧影许琴祁亨年唐琦哲朱同宇李香格
Owner HUZHOU TEACHERS COLLEGE