地处滇东高原的麒麟区、沾益县,气候温和、湿润,作物一年两熟,为鼠类提供了良好的生存环境,月平均鼠密度为5.03%,农田常年发生鼠害的有60万亩次。为此,1993年1月至1997年12月在三宝镇兴龙办事处农田设立固定鼠情监测点,对鼠类的种群数量进行了动态研究。1　方法　采用中型铁夹, Located in the Kirin area of ​​Yunnan Plateau, Zhanyi County, mild climate, crop two crops a year, provides a good living environment for rodents, the average monthly rat density of 5.03%, pests in perennial farmland 60 Mu times. To this end, from January 1993 to December 1997 set up fixed rodent monitoring points in the farmland of Xinglong Office of Sambo Town to conduct a dynamic study of the population of rodents. 1 method using medium iron clip,