2, the songs of the four seasons. Dong Gongchun's poems:
On the edge of Luoyang city, the sun shines, in front of Tianyuan pool, Chunyan returns.
Peach blossoms can't fly, and willows are reluctant to part.
The small garden is full of green water, and the clear songs turn into countless strings.
Long live Yang Chunqu for ten thousand years.
3. According to historical records, after the Grand Canal was opened, in order to consolidate soil and water and improve flood control ability, Yang Di ordered to plant willows on both sides of the newly opened Grand Canal, from Luoyang to Yangzhou, and personally demonstrated the planting. Shangshu was named Yang, with the same surname as the emperor. From then on, the willow has the reputation of "willow".