Method and device for measuring photosynthesis, breath and transpiration of plant canopy or/and breath and evaporation of soil

A soil respiration and plant technology, applied in the direction of measuring devices, color/spectral characteristic measurement, material analysis through optical means, etc., can solve the problem of inability to achieve splitting and simultaneous measurement of plant canopy group photosynthesis, respiration, transpiration and soil Respiratory, evaporation and other problems, to achieve the effect of continuous observation

Inactive Publication Date: 2010-12-08
QINGDAO AGRI UNIV
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Problems solved by technology

However, these methods cannot or cannot measure the photosynthesis, respiration, transpiration, soil respiration, and evaporation of the plant canopy population at...

Method used

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  • Method and device for measuring photosynthesis, breath and transpiration of plant canopy or/and breath and evaporation of soil
  • Method and device for measuring photosynthesis, breath and transpiration of plant canopy or/and breath and evaporation of soil
  • Method and device for measuring photosynthesis, breath and transpiration of plant canopy or/and breath and evaporation of soil

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Embodiment Construction

[0043] Depend on figure 1 , 2 , 3, it can be seen that the measuring device of the present invention is composed of a box base 1, three boxes 2, a multi-channel solenoid valve 3, an infrared gas analyzer 4, a data collector 5, a temperature sensor 10, an air pressure sensor 11 and an air pump 6 combination composition. A sealing rubber pad 13 is housed in the U-shaped groove 12 of the box base 1, and the box base 1 is fixed by inserting the soil part 14. The bottom edge of the four walls 15 of the box body 2 is stuck in the U-shaped groove 12, and the sealing rubber pad 13 ensures airtightness; the top cover 16 of the box body 2 can be lifted from one side, and can ensure airtightness when closed; 2 Install a fan 17 on the inner rear wall, pass through the rear wall, and attach a fan battery and a switch 18 outside the rear wall; holes are respectively opened on the two side walls of the box body 2, and the rubber tube 7 is connected with the multi-channel solenoid valve 3, ...

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Abstract

The invention provides a method and a device for measuring photosynthesis, breath and transpiration of a plant canopy or/and breath and evaporation of soil. The device is formed by assembling a box base, three boxes (a light box, a dark box and a bare box), a multichannel magnetic valve, an infrared gas analyzer, a data collector, a temperature sensor, a baroceptor and an air pump. The invention can be used for measuring population photosynthesis-breath-evaporation and breath-evaporation of various plants, such as farmland, lawns, bushes, and the like and observing photosynthesis, breath and transpiration of plants and breath and transpiration of soil at the same place and the same time, and can realize the continuous observation and scientific split of various components.

Description

technical field [0001] The invention relates to a method and device for measuring plant canopy photosynthesis, respiration, transpiration, soil respiration and evaporation, by measuring CO in different boxes of plant canopy under light, dark and corresponding bare ground conditions. 2 、H 2 The change of O concentration measures the photosynthesis, respiration, transpiration of the plant canopy and the respiration and evaporation of the soil, and realizes the determination of plant photosynthesis, plant respiration, and soil respiration in the net primary productivity of farmland, as well as plant transpiration and soil evaporation in farmland evapotranspiration. and Split, belonging to the field of biological and geoscience research methods and instruments. technical background [0002] Photosynthesis is the use of light energy by green plants to convert CO 2 The process of synthesizing organic matter with inorganic substances such as water and releasing oxygen; transpirat...

Claims

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Application Information

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IPC IPC(8): G01N21/35G01N21/3504
Inventor 王建林赵风华林荣芳杨新民
Owner QINGDAO AGRI UNIV
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