What is the idea of earth art?

Earth art is also called "landscape art". It is the art from 1967 to 1970. The idea pursued by earth art is (1) to explore the equality and infinity of means of production, and to break the boundary between art and life, and to engage in creation in a natural environment with nature as the material. (2) Opposing art is an act of buying and selling, thinking that works of art should not be placed in art galleries. Only for a few people to appreciate, art should go out of art galleries and galleries, and take the vast outdoor space as the stage, so that most people can feel art at any time in their own living space. (3) The purpose of earth art is to let most people participate, and this kind of participation behavior is completely divorced from practicality, and only in the behavior of games and fantasies can we gain an unknown new experience. Its representative artists are: Haizha, Oppenheimer, Smithsonian.