西藏日喀则高寒草甸鼠害动态研究

Dynamics of rodents' holes on alpine meadow in Tibet Shigatse

于2007、2008和2009年连续3年采用"堵洞、盗洞"调查法,对日喀则地区萨迦县高寒草甸草原害鼠和地上生物量进行定点动态调查。结合当地气候变化以及植被环境分析,日喀则地区萨迦县高寒草甸地上生物量连年下降,与总洞口数呈极显著负相关(P<0.01);"堵洞、盗洞"调查法能方便有效地反应高寒草甸的鼠情危害状况。回归分析模型可以用来通过鼠害洞口数变化间接估测西藏高寒草甸地上生物量。

Dynamics of rodents and biomass on alpine meadow in Sajia country,Shigaste,Tibet,were investigated in fixed locations for successive three years（2007,2008 and 2009） via ＇stifled and recovered rodent holes＇.The biomass in Shigaste decreased for continual 3 years and significantly correlated with the number of rodents holes（P0.01）.The rodents in the alpine meadow could be efficiently reflected via ＇stifled and recovered rodent holes＇ investigation.A regression model between rodents hole and biomass could be used to estimated indirectly alpine meadow production in Tibet.