There is a couplet, "This year, I am happy to plant a tree, and next year, I am happy to see the people of Shaoqiu." What does Shao Qiuren mean?

Shao means continuation and inheritance. Autumn here means wealth. In this couplet, Shao and Qiu refer to the children who inherit the rich life.

This is a wedding couplet, indicating that they have a happy marriage this year. Next year or the year after, they will have children soon, and they are happy and gratified to see their children inherit this beautiful life.