共 4 条
- [2] Net photosynthesis, root respiration, and regrowth of Bouteloua gracilis following simulated grazing[J] . J. K. Detling,M. I. Dyer,D. T. Winn.Oecologia . 1979 (2)
- [3] INFLUENCE OF GRAZING ON PLANT SUCCESSION OF RANGELANDS [J]. BOTANICAL REVIEW, 1960, 26 (01) : 1 - 141
- [4] 1987, The effect of early defoliation in the spring by sheep on the proportion of clover in a grass white clover sward .2 Laws,J. A. et al. Occasional Symposium, British Grassland Society .