Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Alto Douro Wine Region' has mentioned 'Stone' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| The earliest, employed during the pre-phylloxera era (pre-1860), was that of the socalcos, narrow and irregular terraces buttressed by walls of schistous stone, which require continuous maintenance on which only one or two rows of vines could be planted. | UNESCO |
| Water used to be collected in catchments along stone channels. | UNESCO |
| The main concerns with the protection and management of the ADWR have to do with physical indicators such as: conserving and rehabilitating schistous stone walls and socalcos; adequating methods for installing vineyards and other cultures; creating arboreal networks for dividing vine fields and creating passageways; minimizing visual intrusions; recording, and protecting vernacular heritage; licensing of new buildings; enhancing settlements; implementing new road networks. | UNESCO |