The invention discloses a mangrove forest stand health degree evaluation method based on an unmanned aerial vehicle. The method comprises the following steps: firstly, obtaining visible light data through an unmanned aerial vehicle; then, calculating sample plot species diversity and single plant crown breadth and tree height by utilizing a pixel-level type identification result and a three-dimensional point cloud reconstruction result; further obtaining forest stand structure indexes of the crown breadth size ratio, the mingling degree and the angle scale; and finally, evaluating the health degree of the mangrove forest ecological system according to the screened mangrove forest ecological information indexes. According to the method, mangrove forest stand structure health assessment is carried out by means of the unmanned aerial vehicle, operation is simple, and real-time performance is high. The obtained health degree information of the mangrove forest can be used for formulating various policies and protection measures, and efficient protection and recovery of the mangrove forest are facilitated.

    本发明公开了一种基于无人机的红树林林分健康度评价方法,该方法首先通过无人机获取可见光数据;然后,利用像素级种类识别结果以及三维点云重建结果,计算样地物种多样性以及单株植株冠幅和树高;进一步,获取冠幅大小比数、混交度和角尺度的林分结构指标;最后,根据筛选的红树林生态信息指标评估红树林生态系统的健康度。本发明方法中借助无人机开展红树林林分结构健康评估,操作简单,实时性强。获取的红树林的健康程度信息可用于各种政策和保护措施的制定,便于红树林的高效保护和恢复。


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    Title :

    Mangrove forest stand health degree evaluation method based on unmanned aerial vehicle


    Additional title:

    一种基于无人机的红树林林分健康度评价方法


    Contributors:
    LI RUILI (author) / SHEN XIAOXUE (author) / ZHAI CHAOYANG (author) / YU LINGYUN (author)

    Publication date :

    2021-06-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B64C AEROPLANES , Flugzeuge / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL




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