Artificial simulated stress test was conducted on four grasses of Elytrigia intermedia, Bromus inermis, Leymus chinensis and Agropyron desertorum.
It is the first time to propose a new concept of Pasture Stress Coefficient, which means in grazing, a product that multiplying by total trampling times and total animal weight, in certain unit of time and grassland area.
The result showed that,(1)The best period of trampling was9-11days, in the conditions of having enough soil water, cutting remaining15c...
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