Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Alto Douro Wine Region' has mentioned 'Buffer zone' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| As a result, the state of conservation of the Alto Douro Wine Region, in particular of the majority of supporting walls, is remarkably good, and clearly superior to that of the buffer zone. | UNESCO |
| The existing legal provisions to ensure the protection of the property and its buffer zone are adequate. | UNESCO |
| As experience has shown the large buffer zone of 225,400 ha is difficult to manage, there is a need for the Management Plan to address this issue. | UNESCO |