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Method for estimating plant growth biomass liveweight variation based on virtual plants

A technology of virtual plants and plant growth, which is applied in the field of estimation of plant biomass changes based on virtual plants, and can solve problems such as ignoring the linkage relationship between vegetation structure models and mechanism models

Inactive Publication Date: 2012-01-11
FUZHOU UNIV
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Problems solved by technology

[0007] In view of the defect that the existing forest biomass estimation method ignores the linkage relationship between the vegetation structure model and the mechanism model, the purpose of the present invention is to provide a method for estimating the change of plant growth biomass based on virtual plants

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  • Method for estimating plant growth biomass liveweight variation based on virtual plants
  • Method for estimating plant growth biomass liveweight variation based on virtual plants
  • Method for estimating plant growth biomass liveweight variation based on virtual plants

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Embodiment Construction

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] like figure 1 As shown in the figure, the present invention provides a method for estimating changes in plant growth biomass based on virtual plants, which is characterized in that it includes the following steps: Step 10: Obtain morphological parameters and textures of simulated plants, and use plant growth laws and parameterized L-systems A plant geometric model is established on the basis; Step 11: Then, based on the plant geometric structure model, the ray tracing method is used to simulate the direct and sky scattering of photosynthetically active radiation in the virtual canopy, and it is applied to the plant biomass accumulation to establish the plant structure-function Feedback model; Step 12: The parameter values ​​calculated by the functional model are fed back to the plant structure model, and the simulation of plant growth and developme...

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Abstract

The invention discloses a method for estimating plant growth biomass liveweight variation based on virtual plants, aiming to the defect that a linkage relationship between a vegetation structure model and a mechanism model is ignored in the current method for estimating forest biomass liveweight variation. The method for estimating the plant growth biomass liveweight variation comprises the following steps of: firstly obtaining morphology parameters and textures of simulated plants, and establishing a plant geometric model based on a plant growth rule and a parameterization L-system; simulating photosynthetically active radiation in a virtual canopy by utilizing a ray tracing method based on the plant geometric model and applying to plant biomass liveweight accumulation, and establishing a plant structure-function feedback model; feeding parameter values obtained by calculation of the functional model back to the plant structure model, carrying out plant growth and development simulation at a certain growth cycle or a plurality of growth cycles; and simulating the photosynthetically active radiation in the virtual canopy on the grown and developed plant geometric structure model again, so repeatedly, dynamically developing the radiation simulation, and finally estimating the plant growth biomass liveweight in the simulated cycle(s).

Description

technical field [0001] The invention relates to the technical field of virtual plants and global environmental changes, in particular to a method for estimating changes in plant biomass based on virtual plants. Background technique [0002] Virtual plants, that is, the application of computers to simulate the growth and development of plants in three-dimensional space, is a research field that has developed rapidly with the advancement of information technology in the past 20 years. With the increasing global warming effect, forest systems play an increasingly significant role in the global carbon cycle, and biomass is an important indicator of the carbon sequestration capacity of forest systems. At present, among the three estimation methods of forest biomass, remote sensing technology can estimate biomass quickly, non-destructively and relatively accurately, and can make long-term and uninterrupted macro observations of ecosystems, so it is the most widely used in global c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 陈崇成邹杰林郁欣唐丽玉陈刚
Owner FUZHOU UNIV
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