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Method for obtaining total assimilative capacity of plant inorganic carbon under outdoor ecological environment

An inorganic carbon, plant technology, used in testing plants/trees, measuring devices, instruments, etc.

Active Publication Date: 2018-09-07
INST OF GEOCHEM CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for obtaining the total assimilation capacity of plant inorganic carbon in wild habitats, which not only does not require cumbersome cultivation of plants and saves the determination of stable carbon isotopes of bicarbonate ions in soil that are easily affected by carbon dioxide in the air step, the total assimilation capacity of plant inorganic carbon at different seedling ages and different growth stages can be measured in real time, and it also overcomes the information defect that the existing technology cannot obtain the total assimilation capacity of plant inorganic carbon in batches

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  • Method for obtaining total assimilative capacity of plant inorganic carbon under outdoor ecological environment

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Embodiment Construction

[0034] The embodiment of the present invention: it includes the following steps,

[0035] Step one, select the leaves of the second unfolded leaf on the new branch of the plant grown in the investigated environment, and use a portable photosynthetic instrument to measure the photosynthetic parameters from 9:00 to 10:00 in the morning under fine weather; the so-called plant on the new branch The leaves of the second unfolded leaf are based on the principle of top-down, with the newly fully developed and fully unfolded leaf on the new branch as the first fully unfolded leaf, and so on; respectively, the second fully unfolded leaf and the third fully unfolded leaf ;

[0036] Step 2: Obtain the data of the net photosynthesis rate Pn from the portable photosynthesis instrument;

[0037] Step three, then, obtain the data of the extracellular atmospheric carbon dioxide concentration Ca and the intercellular carbon dioxide concentration Ci from the portable photosynthesis, and calculate the...

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Abstract

The invention discloses a method for obtaining the total assimilative capacity of plant inorganic carbon under an outdoor ecological environment, and belongs to the fields of a crop information detecting technology, a plant physiological information detecting technology and ecological environment management. The method is characterized by calculating the share of actually assimilated carbon dioxide of plant leaves according to a stable carbon isotope fractionation value of completely assimilated carbon dioxide of the plant leaves and the stable carbon isotope fractionation value of the actually assimilated carbon dioxide of the plant leaves; converting the total assimilative capacity of the plant inorganic carbon according to actual carbon dioxide assimilative capacity measured through a portable photosynthesis system. According to the method disclosed by the invention, the carbon dioxide utilization shares of plants in different seedling ages and different growth periods under the outdoor ecological environment can be quickly, conveniently and accurately obtained in real time, and meanwhile, the bicarbonate utilization capacity of the plants under the outdoor ecological environment can also be obtained.

Description

Technical field [0001] The invention relates to the fields of crop information detection technology, plant physiological information detection technology and ecological environment management, and in particular to a method for obtaining the total inorganic carbon assimilation ability of plants in a wild habitat, without tediously cultivating plants and saving carbon dioxide that is susceptible to air The affected soil bicarbonate ion stable carbon isotope determination steps can be used to determine the total inorganic carbon assimilation capacity of plants at different seedling ages and growth stages in real time, providing a scientific basis for the selection of karst suitable plants. Background technique [0002] In recent years, numerous experiments have proved that plants can not only use atmospheric carbon dioxide as a substrate for photosynthesis, but also use bicarbonate from the soil. Especially in karst limestone areas with a high concentration of bicarbonate, only a ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/0098
Inventor 吴沿友饶森吴沿胜方蕾苏跃李环王瑞梁小兵
Owner INST OF GEOCHEM CHINESE ACADEMY OF SCI
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