旅客列车鼠情调查方法

Approaches to Rat Active Trace Survey in Passenger Train

目的探讨在列车车厢不同位置布粉对粉块阳性率的影响。方法应用粉迹法在车厢四角和门边的不同位置布粉,调查列车鼠密度,分别记录其阳性及阴性粉块,并对阳性程度进行分级。结果门边的阳性粉块数明显多于车厢四角(P<0.01),阳性粉块中的强阳性粉块的比例两者(门边和四角)差异有统计学意义(P<0.01)。结论旅客列车鼠情调查方法,门边布粉比四角布粉更加方便、实用,阳性率高,值得推广。

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.