2002年我国草原鼠害发生状况及今后的防治策略

2002年我国新疆、青海、内蒙古、黑龙江、吉林、辽宁、河北、山西、四川、宁夏等省(自治区)草原鼠害发生严重,经济损失巨大,对鼠害发生区的草原以及江源地区的生态环境和水土保持也造成严重破坏。草原鼠灾发生的主要特点是:害鼠以小型群居鼠类或地下生活的鼠种为主,草原害鼠加剧了草场退化和荒漠化进程,过度或不合理放牧是鼠灾“爆发”的诱发成因。为此本文提出防治鼠害发生的策略。

The Damage of Rodent Occurring in China Grassland in 2002 and Its Management Strategy

The damage of rodents in grassland seriously occurred in Xinjiang , Qinghai, Inner Mongoli-a and other provinces, and the loss was huge in 2002, which caused serious damage to local grassland and ecological environment of the river source areas. The obvious characters was followed: (1)the pests were mainly small rodents living in group and those living under ground ;(2)the pests increased the grassland degradation and the desert process; (3)herding excessively was the important cause leading to the rodents' outbreak. So the management strategy is suggested.