Method for calculating canopy photosynthetic rate

A technology of photosynthetic rate and photosynthesis rate, applied in the field of calculation of plant canopy photosynthetic rate

Inactive Publication Date: 2017-01-04
SHANGHAI INST OF BIOLOGICAL SCI CHINESE ACAD OF SCI
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Problems solved by technology

So far, there is no effective way to integrate the information of metabolic enzyme activity and plant type characteristics to calculate the canopy photosynthetic rate

Method used

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  • Method for calculating canopy photosynthetic rate

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Embodiment Construction

[0023] The above-mentioned features and advantages of the present invention can be better understood after reading the detailed description of the embodiments of the present disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components with similar related properties or characteristics may have the same or similar reference numerals.

[0024] figure 1 The flowchart of a preferred embodiment of the method for calculating canopy photosynthetic rate of the present invention is shown. See figure 1 , each step of the method for calculating canopy photosynthetic rate in this embodiment is described in detail as follows.

[0025] Step S1: Aiming at plant type parameters and planting parameters, use computer three-dimensional reconstruction technology to construct a three-dimensional canopy structure.

[0026] Step S2: Obtain the light intensity distribution on each leaf inside the canopy based on the construct...

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Abstract

The invention discloses a method for calculating canopy photosynthetic rate and is applied to plant canopy basic researches and agricultural plant seedling nursing field and measuring effects of cultivation measures to the plant canopy photosynthetic rate. The technical scheme is that for plant type parameters and cultivation parameters, a canopy reconstruction method is utilized to build a canopy three-dimension structure; by the use of ray tracing algorithm and based on the built canopy three-dimension structure, light distribution of each leave in the canopy can be acquired; leave metabolic characteristics can be achieved and a plant leave metabolic model is parameterized; and the built canopy three-dimension structure, the light distribution of each leave and the parameterized plant leave metabolic model are integrated, so the whole canopy photosynthetic rate can be calculated.

Description

technical field [0001] The invention relates to a method for calculating the photosynthetic rate of plants, in particular to a method for calculating the photosynthetic rate of plant canopies. Background technique [0002] It has been proved by many experiments that improving photosynthetic efficiency can further increase crop yield. However, in breeding and production practice, people still can only screen photosynthetic efficiency per unit leaf area, and there is no means to measure canopy photosynthetic efficiency directly related to crop yield. Canopy photosynthesis refers to the sum of photosynthesis of all leaves in the whole above-ground part. In the canopy, each leaf has a different microenvironment, such as light intensity, temperature, humidity, etc., and there are differences in photosynthetic physiological parameters among different leaves. The light of each leaf in the canopy is different, and the enzyme activity related to photosynthesis of each leaf is also ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 朱新广宋青峰王玉
Owner SHANGHAI INST OF BIOLOGICAL SCI CHINESE ACAD OF SCI
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