云南省农田鼠害分布发生规律初报

目的通过总结分析云南省15个农田鼠情监测点16年监测数据，找出危害全省农作物的主要害鼠种类及分布、种群数量变动情况，为制定鼠害科学防治方案提供依据。方法采用t检验分析云南省农田鼠情监测点1994—2009年间鼠类混合种群密度变化，并用统计图表分析月份间农田鼠类混合种群密度变化。结果按农业种植业区划，将云南省农田害鼠划分为6个区域；全省年度间鼠密度变化不明显，而年内逐月农田害鼠种群数量变动呈双峰型，高峰期为4—6月和9—11月；主要农田害鼠有6种，占总捕获数量的88．32％。结论着重对全省农田鼠情监测工作点的数据进行分析，对农田以外地区害鼠的种群特征、活动分布、危害及其与农田害鼠的关系等有待进一步分析研究。

Preliminary report on rodent infestation of farmland in Yunnan province

Objective To identify local rodent species and distribution in farmland of Yunnan province. Methods We studied monitoring data from 15 stations during 1994 to 2009 in order to determine the annual density change of mixed population in field. Student's t test was used to analyze changes in density and monthly changes are presented with diagrams. Results The distribution of rodent infestation could be divided into six areas by agriculture industry type. Although the rodent density did not change significantly...