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以河南宝天曼自然保护区的19个树种的5项指标作为评判依据，采用灰色系统理论中的关联度作为测度，对各树种的防火性能进行综合评判，评判结果与实际情况一致，从而为防火树种的选择提供了一种新的科学方法．
Based on the five indexes of 19 tree species in Baotianman Nature Reserve in Henan Province, the correlation degree in gray system theory was used as a measure to evaluate the fire performance of each tree species. The evaluation results were consistent with the actual conditions The choice of fire tree species provides a new scientific method.