Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Río Abiseo National Park' has mentioned 'Erosion' in the following places:

Occurrence Sentence	Text Source
The property contains all the physical cultural features as well, from rock shelters to housing, ceremonial, production (platforms and warehouses) structure, cemeteries and roads that remain intact despite non-substantial changes primarily due to natural causes, which have caused the erosion of its material integrity.	UNESCO