Static opaque chamber for collecting farmland greenhouse gases
A farmland greenhouse gas, static dark box technology, applied in sampling devices and other directions, can solve problems such as increasing soil sink absorption, and achieve the effect of ensuring natural exchange, avoiding disorderly movement, and satisfying gas mixing.
Inactive Publication Date: 2015-06-03
CHINA AGRI UNIV
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Problems solved by technology
This is mainly due to the influence of uneven pressure on the surface, so the emission of soil greenhouse gases is different from the original state, and at the same time, the absorption of soil sinks will increase, which will affect the accuracy of the measurement of greenhouse gas emissions.
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[0020] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings, but should not be construed as limiting the protection scope of the present invention. Any non-essential improvements and adjustments to the present invention made by those skilled in the art based on the above content of the present invention shall fall within the protection scope of the present invention.
[0021] A static obscura for collecting greenhouse gases in farmland, such as figure 1 As shown, a directional partition 3 is arranged inside the cabinet 1; the directional partition 3 is connected to the inner wall of the cabinet 1, and the cabinet 1 is divided into upper and lower parts, wherein two 12V fans 2 are arranged on the upper part of the cabinet 1, wherein One is fixedly arranged on the top of one side of the upper part of the box body 1, another fan 2 is fixedly arranged at the bottom of the other side of the upper part of the box bo...
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The invention discloses a static opaque chamber for collecting farmland greenhouse gases, and belongs to the technical field of greenhouse gas measurement. A chamber body of the static opaque chamber is internally provided with an orientation baffle, and the orientation baffle is connected with the inner wall of the chamber body so as to separate the chamber body into an upper part and a lower part; the upper part of the chamber body is provided with two fans, one fan is fixedly arranged on the top at one side of the upper part of the chamber body, and the bottom at the other side of the upper part of the chamber body is fixedly provided with the other fan; a sampling hole is formed in the lateral surface of the lower part of the chamber body; the orientation baffle is provided with a plurality of airstream exchange holes. According to the invention, the static opaque chamber is internally provided with the orientation baffle to optimize the gas flow in the chamber, not only is the aim of uniformly mixing gases achieved, but also the influences on the emission of farmland greenhouse gases by stirring via the fans are solved radically, so that the natural exchange of soil gas and atmospheric gas is ensured, and the gas collecting precision is improved.
Description
technical field [0001] The invention belongs to the technical field of greenhouse gas measurement and relates to a static dark box for collecting farmland greenhouse gas. Background technique [0002] With the intensification of human activities and the increase of fossil fuel use, atmospheric CO 2 、CH 4 and N 2 O and other greenhouse gases continue to increase, and the global climate shows a trend of continuous warming. The average temperature of the global atmosphere has increased by about 0.5-0.6°C in the past 100 years. It is speculated that if the status quo is maintained and no action is taken, the temperature may rise by 0.02°C per year, and the global average temperature will increase by about 2°C in 100 years. Farmland is the area most affected by human activities, and it is also the largest greenhouse gas emission system that supports sustainable human development. Due to the influence of various environmental factors, the emission of farmland greenhouse gases ...
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Inventor 张卫峰李升东李晶李婷玉
Owner CHINA AGRI UNIV