Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Caves of Aggtelek Karst and Slovak Karst' has mentioned 'Soil' in the following places:

Occurrence Sentence	Text Source
The property needs to be monitored to ensure that the water quality in the catchment area of the caves is appropriate (including controlling the use of agricultural chemicals) and to prevent large-scale soil erosion and the infiltration of humus and alluvial soil into the caves.	UNESCO