关键词: 宁南旱地, 宁南旱地, 氮磷钾配施, 马铃薯, 产量, 水分利用效率

Abstract: This study focuses on the ecological habits of four species of owls in Wucheng of Shanxi in order to accumulate the ecological base material of owls in this area. The study used the line transect method to record the migration time, collect data about the characteristics of habitat, nests and eggs. The study also analyzed the diets with food content analysis method. The results showed that the migration characteristics among Otusscops, Asio otus and Asio flammeus were similar in different years, the duration of northward migration was short but the interval was long and the duration of southward migration was long but the interval was short. There were differences between Otus scops and Athene noctua in the nest-site selection and breeding behavior. The propagating success rate of Athene noctua, whose nest-site was near the residential area, was higher. The main diets of four species of owls were small mammals and birds; meanwhile, they also fed on a few insects, some livestock and fowls. The overlap of needs between different species may increase the competition. Owls are worth the attention and need to be protected because of their important role in the ecosystem and their low population quantity.