Although I feel everyones wife will be reactive differently, there's some points Maxx makes that should be paramount.
Let her rest!; In my wifes case I know she has never experienced jetlag before and will be diffecult and frustrating to say the least.
Don't force her!; She's in a new world. you know this as well as she does since when you were in China, you saw the difference, and it's now her burden to adjust. Give her time to adjust.
Create the avenue for her to communicate with home.; She's going to be missing everything that is normal to her. Go out of your way to enable her to contact family/friends back home. She'll be missing the dialog she's so used to each and every day, as you were when you were in China.
Be Flexible; Let her call the shots for a while. Let her express her desires of things to do, sights to see, places to eat. If she wishes to get out and venture, be supportive and try to guage what it is she's interested to see but don't go overboard and subject her to something too intense. She'l need time to gradually adjust and accept all those differences we've seen when we were in her country.
Now don't misunderstand me since my wife isnt even here yet but this seems to be a common sense thread. The simple way to figure it all out is "How would I feel if?......."
Put yourself in her position. If you were in her shoes, in a foreign country, a new husband, a new home, surrounded by a new way of doing things.... How would you feel? Don't stop asking yourself that question when she arrives or I feel you'll do nothing more than frieghten her with too many changes too quickly.
If I were to make a suggestion, and this is my plan already, is to let her set the pace. Encouraging her is fine but don't push. Give her options and encouragement. Knowing my wife and how she is, her own curiousity and desire to learn will be her motivation.