Yes, they do, which has had implications for rainfall patterns:

https://www.msn.com/en-us/weather/climate-change/china-accid...

(if that doesn't come up, search terms to find it were "news china rainfall forest tree planting change")

Rainforests are tropical largely because of the trees. If you cut them down, it reverts to desert. Geography helps, but it's mostly the plants changing local climate.

https://www.livescience.com/planet-earth/plants/china-has-pl... was posted in another comment. The tl;dr seems to be less rainfall in the eastern regions and more in Tibet.

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