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Forest stand spatial pattern weighting method based on triangulation network model

A technology of spatial pattern and triangular network, applied in the field of forest spatial structure, can solve the problem of inaccurate spatial structure units of forest stands.

Active Publication Date: 2019-06-07
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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Problems solved by technology

[0005] This application provides a method, device and method for weighting stand spatial pattern based on a triangular network model to solve the technical problem of inaccurately generating forest stand spatial structure units generated without considering tree size differences in the prior art

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  • Forest stand spatial pattern weighting method based on triangulation network model
  • Forest stand spatial pattern weighting method based on triangulation network model
  • Forest stand spatial pattern weighting method based on triangulation network model

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[0050] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0051] see figure 1 , a schematic flow chart of a method for weighting forest stand spatial pattern based on the triangulation model provided by the embodiment of the application; the embodiment of the application provides a method for weighting the forest stand spatial pattern based on the triangulation model, including:

[0052] Build a De...

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Abstract

The invention discloses a forest stand spatial pattern weighting method based on a triangulation network model, and the method comprises the steps: building a Delaunay triangulation network model through employing forest tree plane discrete points, and optimizing the triangulation network model; determining a forest space structure unit by utilizing the optimized triangulation network model; performing distance weighting on the forest space structure unit, converting the forest size attribute into a space attribute, and forming a weighted forest stand space distribution pattern; and quantifying and judging the weighted forest stand spatial distribution pattern. According to the forest stand spatial pattern weighting method based on the triangulation network model, the forest size attributevalues serve as the weights, the forest coordinates are converted in a distance weighting mode, and the generated weighting logic coordinates can visually reflect the strength of the mutual relationbetween the forests. The influence of the forest size difference on forest stand space structure evaluation is fully considered, and the technical problem that the forest stand space structure unit generated without considering the forest size difference in the prior art is inaccurate is solved.

Description

technical field [0001] The present application relates to the technical field of forest spatial structure, in particular to a method for weighting forest stand spatial pattern based on a triangular network model. Background technique [0002] Forest structure is a high-level summary and measurement of the stand state at the measurement time point in the process of stand dynamic change. Forest spatial structure features include interspecific and intraspecific differences in species mixing, tree size variation and spatial distribution patterns of forest trees. Among them, the spatial distribution pattern refers to the spatial arrangement of tree positions, and the spatial distribution pattern reflects the way individuals gather or disperse on the plane. The study of the stand distribution pattern is helpful to deepen the understanding of the spatial structure of the population, and provides a basis for the optimization of the forest ecosystem structure and artificial The tree...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/20
CPCY02T10/40
Inventor 李建军李丹
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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