Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Phong Nha-Ke Bang National Park' has mentioned 'Buffer zone' in the following places:
Occurrence Sentence Text Source
The core zone of this national park covers 857.54xc2xa0km2 and a buffer zone of 1,954xc2xa0km2.
Within the buffer zone, there is a population of 52,000.
Due to poor management by the local government, many areas of forest in the buffer zone were cleared heavily, some completely.
Fauna and Flora International donated USD 132,000 to Phong Nha-Kxe1xbaxbb Bxc3xa0ng National Park Management Board for the protection of primates in this national park as well as in the buffer zone.
The inscribed property is completely surrounded and protected by a buffer zone of 220,055 ha and is designated into three management zones: a strictly protected, an ecological restoration and an administrative/service zone.
The watershed protection forests in the buffer zone also protect the integrity of the property.
A Strategic Management Plan has been in place since 2012 and is based on existing plans, including the Sustainable Tourism Development Plan, the National Park Operation Management Plan and the Buffer Zone Development Plan.