Dynamics of rodents holes on alpine meadow in Tibet Shigatse

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（P＜0.01). 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.