Grassland caterpillar suitable area division method, system and terminal based on unmanned aerial vehicle aerial photography

The invention discloses a grassland caterpillar suitable area division method, system and terminal based on unmanned aerial vehicle aerial photography, and the method comprises the steps: setting an observation sampling point, and obtaining grassland caterpillar data of the observation sampling point through the unmanned aerial vehicle aerial photography; acquiring an environment factor corresponding to the observation sampling point; based on BIOMOD simulation software, utilizing grassland caterpillar data and environmental factors to construct an ecological niche model; evaluating the ecological niche model according to three indexes of Kappa, TSS and AUC, and screening out an optimal ecological niche model; and predicting the spatial distribution probability of the grassland caterpillar by using the optimal ecological niche model, and dividing a grassland caterpillar suitable region according to the spatial distribution probability. According to the method, basic data of spatial distribution research of th