摘要
Four seeding methods, including broadcast sowing, feeding seeds to sheep, putting seed bag on sheep and cattle, and mix-seeding were combined with hoof tillage method to improve the degraded mountain grassland where large gradient limited the use of machine. The results showed that the most suitable grassland type for hoof tillage was mountain meadow steppe. The optimum reseeding period was early spring, followed by late autumn ; and Sainfoin （Onobrychis sativa） was the most suitable herbage species. The optimum reseeding method was artificial broadcasting in the slope with the gradient 〈 20°, followed by putting seed bag on sheep and cattle. After improvement of hoof tillage, the vegetation coverage increased by 35%, the proportion of high quality herbage increased by 25%, and the fresh yield increased by three to four times.
Four seeding methods, including broadcast sowing, feeding seeds to sheep, putting seed bag on sheep and cattle, and mix-seeding were combined with hoof tillage method to improve the degraded mountain grassland where large gradient limited the use of machine. The results showed that the most suitable grassland type for hoof tillage was mountain meadow steppe. The optimum reseeding period was early spring, followed by late autumn ; and Sainfoin （Onobrychis sativa） was the most suitable herbage species. The optimum reseeding method was artificial broadcasting in the slope with the gradient 〈 20°, followed by putting seed bag on sheep and cattle. After improvement of hoof tillage, the vegetation coverage increased by 35%, the proportion of high quality herbage increased by 25%, and the fresh yield increased by three to four times.
基金
Supported by Science and Technology Research Project of the Xinjiang Uygur Autonomous Region"Application of Hoof Tillage Method to Improve Degraded Mountain Grassland"(20113111-1)
