Hi! I would like to know if there is a way to go directly from the yuanyang rice terrace to Dali.

I am afraid that there is no direct transport. You can take a bus to Kunming South Bus Station first (about 6 to 7 hours). Then, take bus line 908 from New Luosiwan Bus Hub to West Bus Station (it costs CNY50-60 if by taxi). Afterwards, take a bus to Dali (about 6 hours). :)