农村不同环境条件下鼠种与鼠密度的调查研究

AN INVESTIGATION OF THE SITUATION OF RAT CATEGORY AND RAT DENSITY IN VARIOUS CIRCUMSTANCES OF RURAL AREA.

农村鼠种构成和鼠密度的消长，与不同环境条件有密切关系，调查表明，野外以黑线姬鼠为主要鼠种，村内褐家鼠是主要鼠种，其密度分别为：野外旱田２２．０％；水田为１９．６０％。村内新房户占２．２９％；旧房户占５．５７％。室内坚持长年布饵灭鼠户占１．００％；未布饵灭鼠户占４．３３％；粮食散放户占８．４０％；粮食封存户占２．２０％。村边户与村内户鼠密度为６．３６％和５．５４％。为科学灭鼠，防病保粮提供了可靠依据。

The constitution of rat category and rat density are effected by different circumstanses on the country very much.This investigation showed that most of the rats are Apodemus agrarius in field and Rattas novegicus in village.The rat density each is 22 00% in drylands,19 60% in irrigated lands,2 29% in new houses,5 57% in used houses,1% in the houses which are deploied bait,4 33% in the houses undeploied bait,2 2% in the household whose grain are sealed up for safekeeping,8 4% in the households which have scattered grain,6 36% in the households at the edge of the village,5 54% in the households inside the village.All above provide reliable basic for avoidding illness and protecting grain.