how to reach henan from dubai,and which other main provinces i can cover within 10 days?

You can cover Beijing, Shaanxi, Yuannan and Sichuan.
All these provinces have a lot of attractions, both historical and natural landscape spots, such as Great Wall Sections and Forbidden City in Beijing, Terra Cotta Warrior Army in Xian, Chengdu Panda, Lijiang, Shangri-la and etc. I suggest you turn to a travel agency for a classic tour package, which enables you to see the best part of China.

From Dubai, you can fly to Beijing first. Then transfer to another flight to Zhengzhou, which is the capital city of HN Province.