After analysis of the problem of evaluating trampling intensity(TI),TI is defined in this paper as trampling area or trampling pressure of grazing single or multiple livestock per hectare during a unit time under free or rotational grazing.It has three methods of expression: trampling pressure method,trampling area method,trampling frequency method.The trampling unit and trampling equivalent unit(TEU) are put forward for the first time in order to define the calculating standard and conversion standard of T...
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