Abstract:

Objective　Deratization was performed in the inundated area of the Kangyang hydropower station on the Yellow River and the rat density, species and distribution were investigated in the area to prevent the outbreak of rodent?borne diseases due to changes in the ecological environment and rodent migration brought about by reservoir construction and water retention. Methods　Chemical rodent control approaches were applied. Rat traps were used to investigate the rat density for comprehensive analysis. Results　The rat density was 7.55% before deratization and 0.84% after deratization. The control rate was 88.87% as anticipated. The dominant species was of Insectivora. Conclusion　The key areas in rodent control were the farming areas and residential areas. Bromadiolone was highly palatable to rats and remarkably effective in rodent control.

Key words: Hydropower station areas, Rodent control, Density investigation

摘要：

目的　为防止因水库修建和蓄水，造成生态环境改变、鼠类迁移，引起鼠传疾病的暴发、流行，对青海省黄河康扬水电站淹没区进行灭鼠，并对鼠密度、鼠种及其分布情况进行调查。方法　化学药物灭鼠，鼠夹法调查密度、综合分析。结果　灭鼠前鼠密度为7.55％， 灭鼠后为0.84％， 灭鼠率为88.87％， 灭鼠工作取得预期效果， 优势鼠种为食虫目。结论　库区灭鼠的重点是耕作区和居民区，用溴敌隆灭鼠，适口性好，灭鼠效果比较显著。

关键词: 电站库区, 灭鼠, 密度调查