Study on Effect of Grassland Improvement on Alpine Degraded Grassland Vegetation.

An experimental study was conducted to solve degeneration problems in recent years on Alpine grassland and three measures were tested, e.g., fencing, meadow cutting and fertilizing. The results indicated that the three measures all increased height, coverage, density, frequency and weight of community. The fertilizing measure had a significant improving effect on the grassland: the yield edible herbage increased by 45.9%～191.1%; The fencing measure takes second place: the yield of edible herbage increased by 60.5%～158.3%; The meadow cutting had a less improving effect on the grassland: the yield of edible herbage increased by 32.7%～ 113.9%. It was concluded that fertilizing and fencing are effective approaches for improving degraded grassland.