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Calculation method and system for quantitative characterization of vegetation vertical zone

A calculation method and vegetation technology, applied in the field of data processing, can solve problems such as no prediction model and immature ecological model method

Active Publication Date: 2020-04-28
INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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Problems solved by technology

[0017] The ecological model method is not yet mature enough, the most critical factor to be considered in modeling is how to improve the scope of application and accuracy of the model
When predicting the dynamic changes of vegetation vertical zone boundaries, there is no ideal prediction model

Method used

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  • Calculation method and system for quantitative characterization of vegetation vertical zone
  • Calculation method and system for quantitative characterization of vegetation vertical zone
  • Calculation method and system for quantitative characterization of vegetation vertical zone

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Embodiment Construction

[0135] as attached figure 1 As shown, the application discloses a method for quantitatively describing the vertical vegetation zone, which is used to quantitatively describe the distribution characteristics of the vegetation vertical zone, including the following steps:

[0136] Step 1: Obtain the remote sensing image data of the vegetation vertical belt area to be extracted through the satellite, and extract the corresponding slope and aspect data through the digital elevation model DEM of the area.

[0137] In this embodiment, the remote sensing image, DEM, slope and aspect need to be within the same research area. In order to ensure that the experimental data are all within the same research area, the original remote sensing images and DEM need to be clipped with the vector data of the research area. The slope and aspect data are all clipped DEM extraction results.

[0138] Step 2: Perform image processing on the image data, and perform sample area screening.

[0139] In...

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Abstract

A method and system for quantitative delineation of vegetation vertical zones. The method includes the following steps: (1) Obtain remote sensing image data of the area with vertical vegetation zones to be extracted through satellites, and extract corresponding slope and aspect data through the digital elevation model DEM of the area; (2) Image the image data. Process and screen the sample area; (3) Construct a scatter plot of the sample area and extract the initial vegetation vertical zone boundary value; (4) Based on neighborhood statistical analysis, extract the vegetation vertical zone boundary line; (5) Output the result image and data . The system includes a data reading module, a selection module, a scatter plot module, a neighborhood analysis module and an output module. The quantitative delineation method and system results of vegetation vertical zones described in this application are objective and accurate, and have high application value.

Description

technical field [0001] This application relates to the technical field of data processing, in particular to a calculation method and system for quantitative characterization of vegetation vertical zones. Background technique [0002] Affected by factors such as temperature, precipitation, light, and soil, the vegetation type changes with the increase of altitude, and at the same time presents a gradual change. At the same time, the change of vegetation type with altitude varies with different regions. All these have brought great challenges to quantitatively describe the distribution characteristics of vegetation vertical zones. [0003] At present, the methods for extracting the vertical zone of alpine vegetation at home and abroad are mainly divided into three categories: traditional ground survey method, remote sensing interpretation method and ecological model method. [0004] The ground survey method uses local ecological characteristics to characterize regional ecolo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/11G06T7/41G06T5/50G06T5/00
CPCG06T5/50G06T7/11G06T7/41G06T2207/10032G06T2207/20221G06T5/70
Inventor 王心源项波甄静廖颖骆磊刘传胜杨瑞霞朱岚巍常纯
Owner INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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