Abstract: In order to improve the efficiency of forest fire general aviation emergency rescue, an improved DEMATEL-ISM method was proposed to analyze the influencing factors of the selection of take-off and landing points. Firstly, based on grounded theory, a system of influencing factors for the selection of take-off and landing points for general aviation emergency rescue in forest fires is established. Then, fuzzy set theory is introduced to eliminate the subjectivity of expert rating in DEMATEL-ISM method. Based on the analysis of the causal attribute and the degree of influence among the influencing factors in the selection of forest fire take-off and landing points, five important factors, two fundamental factors,3 direct factors, and 10 indirect factors were determined, and relevant suggestions for the selection of take-off and landing points were put forward. The study results can speed up the decision speed of the selection of take-off and landing points for forest fires, and provide theoretical basis and scientific reference for improving the efficiency of forest fire general aviation emergency rescue.

Key words: forest fire; fire rescue; helicopter; take-off and landing points; influence foutor; grounded theory; fuzzy set theory; improved DEMATEL-ISM method