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Estimation method of plant photosynthetic fixed carbon content

A technology for photosynthetic carbon fixation and carbon fixation, which is used in measuring devices, material analysis by optical means, instruments, etc., which can solve the problem of less quantitative research and achieve the effect of convenient operation.

Active Publication Date: 2016-06-15
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Description
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Problems solved by technology

At the same time, there are many studies on the measurement of photosynthesis in this field, but there are few quantitative studies on the quantitative calculation of photosynthetic fixed carbon in a plant

Method used

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  • Estimation method of plant photosynthetic fixed carbon content
  • Estimation method of plant photosynthetic fixed carbon content
  • Estimation method of plant photosynthetic fixed carbon content

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1. Using indoor potted corn to construct an estimation model of photosynthetic carbon fixation and the application of the model

[0043] 1. Using indoor potted corn to construct an estimation model for photosynthetic carbon fixation

[0044] 1. Test grouping and treatment

[0045] Soil matrix: collected from the sandy soil of the northern beach in Beijing, the maximum saturated water holding capacity of the soil is 21.6%, the soil pH value is 7.44, the soil electrical conductivity is 840μs / cm, the soil available phosphorus content is 4.95mg / kg, and the soil available potassium content The soil organic carbon content is 0.34mg / kg, and the soil total nitrogen content is 0.05mg / kg. Before potting, it was sterilized by high temperature and high pressure steam (121°C, 2h), and air-dried naturally for potting experiments.

[0046] Tested species: arbuscular mycorrhizal fungus species Glomusmosseae BGCXJ01.

[0047] Test crops: corn, provided by Zhongnong Seed Compa...

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Abstract

The invention discloses an estimation method of plant photosynthetic fixed carbon content. The method provided by the invention comprises the following steps: (a) establishing an estimation model: selecting a target plant in a test area, respectively measuring net photosynthetic rate of the target plant at different points-in-time within a reference time quantum, and calculating photosynthetic fixed carbon content of the target plant on unit leaf area within time quantum corresponding to each point-in-time; fitting the time quantum corresponding to each point-in-time and net photosynthetic rate to obtain a fit curve equation 1; fitting net photosynthetic rate and photosynthetic fixed carbon content to obtain a fit curve equation 2, wherein the two equations are the estimation model; and (b) utilizing the estimation model, and calculating the photosynthetic fixed carbon content of the target plant under the same conditions of model building. The method for rapid estimation of carbon dioxide absorbing capacity of the plant is convenient to operate and provides reference function for calculation of carbon balance and research on carbon-nitrogen cycle.

Description

technical field [0001] The invention belongs to the field of terrestrial ecology, and relates to a method for estimating photosynthetic carbon fixation of plants. Background technique [0002] Carbon is one of the most important elements for life. As various climate and environmental issues such as greenhouse gases and the greenhouse effect become increasingly prominent, it is of great scientific value to further increase the understanding of carbon fluxes between large-scale terrestrial ecosystems and the atmosphere. The carbon fixation of photosynthesis is the green plant chloroplast under the action of light, CO 2 The process of assimilating water into carbohydrates and releasing oxygen. Its mechanism is roughly divided into several main links: primary reaction, photosynthetic electron transfer, photophosphorylation and carbon assimilation. The starting point of carbon fixation in photosynthesis is the primary reaction, which is the photophysical and photochemical proc...

Claims

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Application Information

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IPC IPC(8): G01N21/63
CPCG01N21/63G01N2021/635
Inventor 毕银丽江彬
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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