The style of southern shandong ' s folk songs are restricted and affected by the foregoing background factors and meanwhile they compose a multiple unity with close connections and mutual restrictions 其中地理环境、文化传统、方言语调等背景因素对鲁南民歌风格的形成具有举足轻重的作用,鲁南民歌的风格是受上述背景因素的制约与影响的,它们是紧密联系、互为制约的多元统一体。