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Optimal Analysis Method of Afforestation Density Based on 3D Virtual Plants

A technology of three-dimensional virtual and analytical methods, applied in image data processing, special data processing applications, instruments, etc., can solve the problems of long time-consuming, subjectivity and lack of quantitative analysis basis, etc., and achieve the effect of improving scientific rationality

Active Publication Date: 2016-02-03
FUZHOU UNIV
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Problems solved by technology

The initial planting density of traditional tree species is mainly determined through long-term forest surveys and comparative experiments of different densities based on different forest species and forest management purposes. This method takes a long time, is highly subjective, and lacks quantitative analysis basis, etc. insufficient

Method used

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  • Optimal Analysis Method of Afforestation Density Based on 3D Virtual Plants
  • Optimal Analysis Method of Afforestation Density Based on 3D Virtual Plants
  • Optimal Analysis Method of Afforestation Density Based on 3D Virtual Plants

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Embodiment Construction

[0038] Such as figure 1 As shown, the present invention provides a kind of afforestation density optimization analysis method based on three-dimensional virtual plants, comprising the following steps:

[0039] S10: Obtain the morphological and structural characteristic parameters of the target tree species for afforestation, and use single tree modeling tool software to establish a fine three-dimensional model of the tree species at different growth stages;

[0040] S11: According to the tree species planting density and planting point configuration principles stipulated in the afforestation technical regulations or requirements, on the basis of the 3D digital terrain of the proposed forest land, place the 3D model of the tree species on the 3D digital terrain to form different growth stages, different 3D stand scene with distribution density;

[0041] S12: Use the ray tracing algorithm in computer graphics to calculate the light transmittance and daily average light transmit...

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Abstract

The invention relates to a plantation density optimizing and analyzing method based on three-dimensional virtual plants. The plantation density optimizing and analyzing method based on the three-dimensional virtual plants is characterized by including the following steps of S10, obtaining morphological structure characteristic parameters of a target planted tree species; S11, placing a three-dimensional model of the target planted tree species on a three-dimensional digital terrain based on the three-dimensional digital terrain which simulates a planted land; S12, calculating the light transmittance and the daily average light transmittance of standing forest colony tree canopies with different plantation densities in different growth stages according to the ray tracing algorithm in the computer graphics; S13, analyzing whether the light transmittance of a standing forest in different growth stages is reasonable or not, outputting the plantation densities, the plantation point configuration method, the line spacing, the plant spacing and the row direction if the light transmittance is reasonable, and repeating the S11, the S12 and the S13 if the light transmittance is not reasonable till the light transmittance is reasonable. According to the plantation density optimizing and analyzing method based on the three-dimensional virtual plants, the quantitative analysis tool can be provided for the plantation design, the intuitive and vivid auxiliary tool can be provided for agriculture technology promotion, and sustainable management, yield promotion and income increasing of forest districts are promoted.

Description

technical field [0001] The invention relates to the technical field of modern agriculture, in particular to a three-dimensional virtual plant-based afforestation density optimization analysis method. Background technique [0002] Illumination is the energy source for green plants to carry out photosynthesis, and is one of the essential factors in the growth process of green plants. The size of afforestation density directly affects the light transmittance of the stand and the interception of light, and ultimately affects the morning and evening of the stand, the competition situation of forest trees, the growth rate, the population structure, and the light energy utilization rate. Light transmittance also reflects different forestation densities. Forest stands with different planting densities have different internal light distributions. This not only affects the use of light by the upper forest, but also affects the growth of the understory vegetation. Reasonable plantin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50G06T17/00
Inventor 唐丽玉陈崇成邹杰林定黄洪宇
Owner FUZHOU UNIV
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