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

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 prote