RELATIONSHIP BETWEEN FORAGING AREAS OF SHEEP(WETHER) AND SPATIAL HETEROGENEITY OF GRASSLAND LANDSCAPE
绵羊的采食行为与草场空间异质性关系

The research of relationship between foraging areas of sheep and spatial heterogeneity of grassland landscape was conducted at the blocks of a fenced grazing grassland with stocking rate of 4 sheep/hm 2.The results show that the patterns of sheep foraging are relatively regular in foraging lines and spots of lying.Generally,the grazing sheep prefer to forage the communities consisted mainly of Amtemisia frigida and Cleistogenes squarrosa rather than to forage the communities consisted of Stipa grandis and Potenllia acaulis .Meanwhile,the ingestion time per unit area and per foraging times in unit area are sensitive to the community types,therefore,they can be better to describe the relation between foraging behaviors of grazing sheep and the spatial heterogeneity of grassland landscaps.