This lyric is from the song "The Flying Song of the Earth".
According to NetEase Cloud Music, "The Flying Song of the Earth" is a song sung by Song Zuying and is included in the music album "The Flying Song of the Earth" released by Song Zuying in 2000. In 2019, the song won the "Most Beautiful City Music Card Outstanding Song Award" at the "Singing China" Most Beautiful City Music Card Release and Commendation Ceremony.
Lyrics: Singing folk songs when the mountain road is flattened, and fishing nets are spread out to sing fishermen’s songs. Singing that pastoral song, there are so many cattle and sheep.