Chinese name: 毛白杨, maobaiyang.
A label on this tree indicates an age of 300 years.
Plantarium.ru (online plants guide):
https://www.plantarium.ru/page/view/item/29723.html
Royal Botanic Gardens, Kew - Plants of the World Online: https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:776822-1
Fairly big tree, large wide leaves, thin trunk for a tree.