摘要
汉中地区地处我国南北气候交接带的秦巴山区。草地分布在秦岭南坡和巴山两大地域。采用夹日法结合药杀，两年共捕鼠２２０只，隶属２０个种，优势鼠种为黑线姬鼠、黄胸鼠、白腹鼠。♂：♀为１：０．７７；繁殖雌鼠占雌鼠比例为７０．８％，窝平均产仔７．５１只。秦岭和巴山在鼠种分布、繁殖表现等方面有所差异。每年仅２０ｈｍ２以上的大块草场因鼠害损失牧草２２２９００ｔ以上，并提出以培植草地。
The grassland is distributed on the southern slopc of Qinling Mountains and in Bashan Mountain area. In a survey, clamping-and-killing method and poisoning method were used and 220 rats of 20 species were captured in the past two years. The majority of the rats were agraius pallas, flavipectus Milne-Edwards and coxing andersoni Thomas. The proportion of the male to the female was as 1:0.77, and 70.8% of the female were on reproductive ages. On the average, 7.51 youngs in one litter were produced at one birth. Qinling Mountains and Bashan Mountain are different in the variety of rats and their breeding performance. Each year, more than 20 hectares of pasture lose 222900 tons of grass owing to the rat calamity. This article presents the guiding ideology of preventing the rat calamity by cultivating pasture to promote the ecological balancc.
出处
《中国草地》
CSCD
1997年第2期55-58,共4页
Grassland of China
关键词
汉中地区
草地
危害
防治
调查
鼠害
Hanzhong area,\ Grassland,\ Rat species,\ Yeproduction,\ Regional Characters,\ Control and prevention,\ Rat calamity,\ Survey
