Opportunistic management for rangelands not at equilibrium.

作者: Mark Westoby , Brian Walker , Imanuel Noy-Meir

DOI: 10.2307/3899492

关键词: Balance of natureState (polity)Mathematical economicsVariation (game tree)Rangeland managementIf and only ifEnvironmental scienceRange (mathematics)RangelandAgroforestrySimulation modeling

摘要: ing and summarizing knowledge about range dynamics without distorting it. The amount of detail lost in a particular description would depend on how many states transitions were recognized. We are proposing the state-and-transition formulation because it is practicable way to organize information for management, not follows from theoretical models dynamics. In consequence, we consider management rather than criteria should be used deciding what recognize given situation. As general rule, one distinguish 2 only if difference between them represented an important change land point view management. For example, variation due seasonal phenology plants normally subdivided into states, while changes underlying botanical composition It that rangeland could described terms greater or lesser number transitions, depending nature objectives state existing knowledge. There single correct description. Under formulation, organized expressed follow-

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