Abstract: On the basis of the determination of grass yield in artificial windbreak and sand-fixation Pinus sylvesrtis var. mongolica forest, the effects of seasonal change of herbage biomass yield and forest density on the herbaceous plant yield are qualitatively and quantitatively analyzed. Moreover, the pasturable resource productivity potential at artificial sand-fixation Pinus sylveitris vur. mongolica forest in Zhanggutai region is preliminary assessed through the method of forage grass yield. 

Key words: forestry ecology, forest grazing, artificial Pinus sytvestris var. mongolica forest