Abstract: According to the study of evapotranspiration intensity of artificial mongolian pine forest in sandy area of Zhanggutai, this paper discussed the variation patterns of evnpotranspiration intensity and their relationship with environmental conditions, and calculated the water amount consumed by evapotranspiration in artificial forest. It was considered that the main factor of water deficit in sandy soil planted with pine was evapotranspiration.

Key words: Suffolk sheep, Polled Dosert sheep, Ecological adaptability, Hybrid