Help do i need a visa??

Okay so I am from Canada and I Have 2 layovers in China one in Kunming for 17 hours and the one in Shanghai for 20 hours... BUT I have to change airports from Shanghai to Shanghai-pu Dong ... Do I need a visa for this???
Depart: Sun, Dec 02 04:05 PM Kathmandu, NP (KTM)
Arrive: Sun, Dec 02 09:15 PM Kunming, CN (KMG)
Depart: Mon, Dec 03 02:30 PM Kunming, CN (KMG)
Arrive: Mon, Dec 03 05:30 PM Shanghai, CN (SHA)
Note: Change of airport is required for connecting to next flight.

Depart: Tue, Dec 04 01:30 PM Shanghai-pu Dong, CN (PVG)
Arrive: Tue, Dec 04 08:10 AM Vancouver, BC, CA (YVR)