关键词: 西藏草地资源, 生态保护, 牧民行为, 策略研究

Abstract: Using "Tragedy of the commons" as a reference point, the utilization of grassland resources was studied through by a game theory analysis method. Results show that defective strategy makes a collective stable and completely friendly tactics was not desirable. Retaliation strategy had obvious advantages. Future earnings play a significant role in present behavior choices. If the discount factor were large enough, mutual cooperation between herdsmen had a long-term stability. If the discount factor were minor, the betrayal strategy was an optimal strategy of all policies. The "tragedy of the commons" was impossible to avoid. Finally, a corresponding constructive policy of herders’ behavior strategy in Tibet grassland resources protection was suggested based on the game analysis method.

Key words: Tibet grassland resources, Ecological conservation, Herdsmen’s behavior, Strategy research