关键词: 旅客列车, 鼠密度, 粉迹法

Abstract: Objective To find out the effects of the lime piece positions on piece positive rate in rat trace survey in the train compartments. Methods Use the lime method to obtain the rat density at the four corners and beside doors of the train compartment,respectively record the number of positive lime pieces and negative ones,then grade the positive rates of lime pieces. Results The positive lime pieces beside doors of the train compartment is obviously more,compared with those at four corners (P<0.01),the proportion of strong positive lime pieces in the positive lime pieces between the two positions is very high and the difference is very obvious (P<0.01). Conclusion Compared with the lime placement at the four angles of a passenger train compartment,the placement of lime beside doors is convenient,practical,and has higher positive rate,thus deserving popularizing.