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Ecological Sites & State-and-Transition Models


Main Points

  • "An ecological site is defined as a distinctive kind of land with specific soil and physical characteristics that differ from other kinds of land in its ability to produce a distinctive kind and amount of vegetation and its ability to respond similarly to management actions and natural disturbances." - NRCS
  • State and transition models (STMs) are key components of ecological site descriptions. STMs are one way of describing the multiple states and associated ecosystem services that a particular site can achieve; thresholds and ecological resilience of individual states to stressors; and underlying roles of management practices and natural processes in pushing a site between states.

Information Sources

State and Transition Models - General Concepts and Methods

State and Transition Models - Oak Woodlands