1. According to the definition of the Convention for the Protection of the World Cultural and Natural Heritage, the following items are "natural heritage":
From an aesthetic or scientific point of view, the natural appearance composed of material and biological structures or such structural groups with outstanding universal value;
Geological and natural geographical structures with outstanding universal value from the perspective of science or protection, and clearly designated as threatened animal and plant habitats;
From the point of view of science, protection or natural beauty, a natural scenic spot or clearly defined natural area with outstanding universal value.
2. Cultural heritage includes material cultural heritage and intangible cultural heritage.
Material cultural heritage is mainly cultural relics with historical, artistic and scientific values, including movable cultural relics and immovable cultural relics. Immovable cultural relics refer to ancient cultural sites, ancient tombs, ancient buildings, cave temples, stone carvings, murals, important historical sites in modern times and representative buildings. Movable cultural relics refer to important objects, works of art, documents, manuscripts, books and materials, representative objects, etc. In various periods of history, it is divided into precious cultural relics and general cultural relics; Precious cultural relics are divided into first-class cultural relics, second-class cultural relics and third-class cultural relics.
Intangible cultural heritage refers to various forms of traditional cultural expressions (such as folk activities, performing arts, traditional knowledge and skills, and related artifacts and handicrafts, etc.). ) and the cultural space that people of all ethnic groups have passed down from generation to generation and are closely related to people's lives. The scope of intangible cultural heritage includes: poems, myths, epics, stories, legends and proverbs that have been passed down from mouth to mouth for a long time; Music, dance, drama, folk art, acrobatics, puppets, shadow play and other traditional folk performing arts; Life etiquette, festival activities, festivals, folk sports and competitions handed down from generation to generation by the general public, and other customs related to production and life; Folk traditional knowledge and practice about nature and the universe; Traditional handicraft skills; Cultural places related to the above-mentioned cultural expressions, etc.
3. The dual heritage of culture and nature refers to the heritage that combines natural and cultural values, such as Mount Tai and Mount Huangshan in China.